Prima versione della web app BriefAI

cose.md

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+la data del piano pro è statica e non penso che sia registrato nel database se il piano è pro o free
+
+onCancelSubscription e onUpgrade sono void (AccountSettings.tsx)
+
+in feedservices.ts non capisco se il token è quello che ho impostato io o è random
+
+email non va bene perchè viene accettata a prescindere anche se non ha senso

digital-twin-news-feature-nicol-ai-frontend/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# environment
+.env
+
+# python
+__pycache__/
+*.pyc
+venv/
+.venv/
+
+# logs and outputs
+*.log
+output/

digital-twin-news-feature-nicol-ai-frontend/README.md

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+# 📰 Digital Twin News
+
+Sistema di News Intelligence basato su LLM che raccoglie notizie tramite RSS,
+le analizza con AI e fornisce una dashboard personalizzata per aziende.
+
+## Team
+| Membro | Ruolo |
+|--------|-------|
+| Cipolla Diego | Data Pipeline Engineer |
+| Bocca Lorenzo | Frontend & Auth Engineer |
+| Galluzzo Matteo | AI, Modelli & Logica |
+| Salvafiorita Nicolò | Integrazione AI/UI |
+
+## Architettura
+```
+[RSS Feed] → [Data Pipeline] → [MongoDB + Redis]
+                                      ↓
+                            [AI Analysis (Claude API)]
+                                      ↓
+                            [Backend API (Express)]
+                                      ↓
+                            [Frontend Dashboard (React)]
+```
+
+## Stack tecnologico
+| Layer | Tecnologie |
+|-------|-----------|
+| Data Pipeline | Node.js, RSS Parser, Redis, node-cron |
+| Storage | MongoDB, Redis |
+| AI & Analytics | Python, Claude API, NLTK |
+| Backend | Node.js, Express, JWT |
+| Frontend | React, Material UI, Chart.js, Recharts |
+| Infrastruttura | Docker Compose |
+
+## Avvio rapido
+```bash
+# 1. Avvia i database
+docker-compose up -d mongo redis
+
+# 2. AI Analysis
+cd ai-analysis
+source venv/bin/activate
+python src/scheduler.py
+
+# 3. Backend API
+cd backend
+npm run dev
+
+# 4. Data Pipeline
+cd data-pipeline
+npm start
+
+# 5. Frontend
+cd frontend
+npm start
+```
+
+## KPI del sistema
+- Frequenza aggiornamento: ogni 15 minuti
+- Batch AI: 10 articoli per ciclo
+- Autenticazione: JWT 24h
+- Fallback locale: attivo se API LLM non disponibile
+
+## Limitazioni documentate
+- Sistema batch-based (non real-time puro)
+- Free tier API LLM gestito con fallback locale
+- Testing automatizzato fuori scope MVP

digital-twin-news-feature-nicol-ai-frontend/backend/package.json

@@ -0,0 +1,27 @@
+{
+  "name": "backend",
+  "version": "1.0.0",
+  "description": "",
+  "main": "src/server.js",
+  "scripts": {
+    "start": "node src/server.js",
+    "dev": "nodemon src/server.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "commonjs",
+  "dependencies": {
+    "bcryptjs": "^3.0.3",
+    "cors": "^2.8.6",
+    "dotenv": "^17.4.1",
+    "express": "^5.2.1",
+    "helmet": "^8.1.0",
+    "jsonwebtoken": "^9.0.3",
+    "mongoose": "^9.4.1",
+    "morgan": "^1.10.1"
+  },
+  "devDependencies": {
+    "nodemon": "^3.1.14"
+  }
+}

digital-twin-news-feature-nicol-ai-frontend/backend/src/middleware/auth.js

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+const jwt = require('jsonwebtoken');
+require('dotenv').config();
+
+module.exports = function auth(req, res, next) {
+  const token = req.header('Authorization')?.replace('Bearer ', '');
+
+  if (!token) {
+    return res.status(401).json({
+      success: false,
+      error: 'Accesso negato. Token mancante.',
+    });
+  }
+
+  try {
+    const decoded = jwt.verify(token, process.env.JWT_SECRET);
+    req.user = decoded;
+    return next();
+  } catch (err) {
+    return res.status(401).json({
+      success: false,
+      error: 'Token non valido o scaduto.',
+    });
+  }
+};

digital-twin-news-feature-nicol-ai-frontend/backend/src/models/Article.js

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+const mongoose = require('mongoose');
+
+const articleSchema = new mongoose.Schema(
+  {
+    uniqueKey: { type: String, unique: true, required: true },
+    title: { type: String, required: true },
+    url: String,
+    pubDate: String,
+    source: String,
+    category: String,
+    content: String,
+
+    summary: String,
+    sentiment: {
+      type: String,
+      enum: ['Positive', 'Neutral', 'Negative', null],
+      default: null,
+    },
+    entities: [String],
+    trendingTopics: [String],
+    macroTopics: [String],
+
+    status: { type: String, enum: ['raw', 'processed'], default: 'raw' },
+    aiProcessed: { type: Boolean, default: false },
+    aiError: String,
+    processedAt: Date,
+    createdAt: { type: Date, default: Date.now },
+  },
+  { timestamps: true }
+);
+
+module.exports = mongoose.model('Article', articleSchema);

digital-twin-news-feature-nicol-ai-frontend/backend/src/models/User.js

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+const mongoose = require('mongoose');
+const bcrypt = require('bcryptjs');
+
+// Register model early so post-save hook can resolve it safely.
+require('./UserProfile');
+
+const userSchema = new mongoose.Schema(
+  {
+    userId: { type: String, unique: true, required: true },
+    email: { type: String, unique: true, required: true },
+    password: { type: String, required: true },
+    username: { type: String, unique: true, required: true },
+    role: { type: String, enum: ['admin', 'user'], default: 'user' },
+
+    macroTopics: [String],
+    keywords: [String],
+    weights: {
+      type: Map,
+      of: Number,
+      default: () =>
+        new Map([
+          ['tech', 1.0],
+          ['news', 1.0],
+          ['social', 1.0],
+          ['news-it', 1.0],
+          ['general', 1.0],
+        ]),
+    },
+
+
+    preferredSources: [String],
+
+    lastFeedGeneratedAt: Date,
+    createdAt: { type: Date, default: Date.now },
+    updatedAt: { type: Date, default: Date.now },
+  },
+  { timestamps: true }
+);
+
+userSchema.pre('save', async function preSave() {
+  if (!this.isModified('password')) return;
+  this.password = await bcrypt.hash(this.password, 10);
+});
+
+userSchema.methods.comparePassword = async function comparePassword(candidatePassword) {
+  return bcrypt.compare(candidatePassword, this.password);
+};
+
+userSchema.post('save', async function syncUserProfile(doc) {
+  const UserProfile = mongoose.model('UserProfile');
+
+  const weightsObject = {};
+  if (doc.weights instanceof Map) {
+    doc.weights.forEach((value, key) => {
+      weightsObject[key] = value;
+    });
+  }
+
+  await UserProfile.updateOne(
+    { userId: doc.userId },
+    {
+      $set: {
+        userId: doc.userId,
+        macroTopics: doc.macroTopics || ['Scienza & Ricerca'],
+        keywords: doc.keywords || [],
+        weights: weightsObject,
+        // sentimentPreference removed: we no longer persist a global sentiment preference
+        preferredSources: doc.preferredSources || [],
+        lastFeedGeneratedAt: doc.lastFeedGeneratedAt || null,
+        updatedAt: new Date(),
+      },
+    },
+    { upsert: true }
+  );
+});
+
+module.exports = mongoose.model('User', userSchema);

digital-twin-news-feature-nicol-ai-frontend/backend/src/models/UserProfile.js

@@ -0,0 +1,25 @@
+const mongoose = require('mongoose');
+
+const userProfileSchema = new mongoose.Schema(
+  {
+    userId: { type: String, unique: true, required: true },
+    macroTopics: { type: [String], default: ['Scienza & Ricerca'] },
+    keywords: { type: [String], default: [] },
+    weights: {
+      type: Object,
+      default: {
+        tech: 1.0,
+        news: 1.0,
+        social: 1.0,
+        'news-it': 1.0,
+        general: 1.0,
+      },
+    },
+    preferredSources: { type: [String], default: [] },
+    lastFeedGeneratedAt: Date,
+    updatedAt: { type: Date, default: Date.now },
+  },
+  { collection: 'user_profiles', timestamps: false }
+);
+
+module.exports = mongoose.model('UserProfile', userProfileSchema);

digital-twin-news-feature-nicol-ai-frontend/backend/src/routes/articles.js

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+const express = require('express');
+const Article = require('../models/Article');
+const auth = require('../middleware/auth');
+
+const router = express.Router();
+
+router.get('/', auth, async (req, res) => {
+  try {
+    const {
+      category,
+      sentiment,
+      source,
+      status = 'processed',
+      limit = 50,
+      page = 1,
+      search,
+    } = req.query;
+
+    const filter = { status };
+
+    if (category) filter.category = category;
+    if (sentiment) filter.sentiment = sentiment;
+    if (source) filter.source = source;
+    if (search) {
+      filter.$or = [
+        { title: { $regex: search, $options: 'i' } },
+        { summary: { $regex: search, $options: 'i' } },
+      ];
+    }
+
+    const parsedLimit = Number.parseInt(limit, 10) || 50;
+    const parsedPage = Number.parseInt(page, 10) || 1;
+
+    const articles = await Article.find(filter)
+      .sort({ pubDate: -1 })
+      .limit(parsedLimit)
+      .skip((parsedPage - 1) * parsedLimit)
+      .select('-__v');
+
+    const total = await Article.countDocuments(filter);
+
+    return res.json({
+      success: true,
+      articles,
+      total,
+      page: parsedPage,
+      limit: parsedLimit,
+      totalPages: Math.ceil(total / parsedLimit),
+    });
+  } catch (err) {
+    console.error('[Articles List Error]', err);
+    return res.status(500).json({
+      success: false,
+      error: err.message,
+    });
+  }
+});
+
+router.get('/:uniqueKey', auth, async (req, res) => {
+  try {
+    const article = await Article.findOne({ uniqueKey: req.params.uniqueKey });
+
+    if (!article) {
+      return res.status(404).json({
+        success: false,
+        error: 'Articolo non trovato.',
+      });
+    }
+
+    return res.json({
+      success: true,
+      article,
+    });
+  } catch (err) {
+    return res.status(500).json({
+      success: false,
+      error: err.message,
+    });
+  }
+});
+
+module.exports = router;

digital-twin-news-feature-nicol-ai-frontend/backend/src/routes/auth.js

@@ -0,0 +1,161 @@
+const express = require('express');
+const jwt = require('jsonwebtoken');
+const User = require('../models/User');
+const auth = require('../middleware/auth');
+
+require('dotenv').config();
+
+const router = express.Router();
+
+router.post('/register', async (req, res) => {
+  try {
+    const { email, password, username } = req.body;
+
+    // Support payloads that send preferences nested under `preferences` (frontend)
+    // or as top-level fields for backwards compatibility.
+    const pref = req.body && req.body.preferences ? req.body.preferences : {}
+    const rawMacroTopics = Array.isArray(pref.macroTopics) ? pref.macroTopics : req.body.macroTopics
+    const rawKeywords = Array.isArray(pref.keywords) ? pref.keywords : req.body.keywords
+
+    const macroTopics = Array.isArray(rawMacroTopics) && rawMacroTopics.length
+      ? rawMacroTopics
+      : ['Scienza & Ricerca']
+
+    const keywords = Array.isArray(rawKeywords) ? rawKeywords : []
+
+    if (!email || !password || !username) {
+      return res.status(400).json({
+        success: false,
+        error: 'Email, password e username sono obbligatori.',
+      });
+    }
+
+    const existingUser = await User.findOne({
+      $or: [{ email }, { username }],
+    });
+
+    if (existingUser) {
+      return res.status(400).json({
+        success: false,
+        error: 'Email o username gia registrati.',
+      });
+    }
+
+    const userId = `user_${Date.now()}_${Math.random().toString(36).slice(2, 11)}`;
+
+    const user = new User({
+      userId,
+      email,
+      password,
+      username,
+      macroTopics,
+      keywords,
+    });
+
+    await user.save();
+
+    // Genera token JWT al momento della registrazione per evitare login separato
+    const token = jwt.sign(
+      {
+        userId: user.userId,
+        email: user.email,
+        role: user.role,
+      },
+      process.env.JWT_SECRET,
+      { expiresIn: '24h' }
+    );
+
+    return res.status(201).json({
+      success: true,
+      message: 'Utente registrato con successo.',
+      token,
+      userId: user.userId,
+      username: user.username,
+      email: user.email,
+    });
+  } catch (err) {
+    console.error('[Auth Register Error]', err);
+    return res.status(500).json({
+      success: false,
+      error: err.message,
+    });
+  }
+});
+
+router.post('/login', async (req, res) => {
+  try {
+    const { email, password } = req.body;
+
+    if (!email || !password) {
+      return res.status(400).json({
+        success: false,
+        error: 'Email e password sono obbligatori.',
+      });
+    }
+
+    const user = await User.findOne({ email });
+    if (!user) {
+      return res.status(404).json({
+        success: false,
+        error: 'Utente non trovato.',
+      });
+    }
+
+    const valid = await user.comparePassword(password);
+    if (!valid) {
+      return res.status(401).json({
+        success: false,
+        error: 'Password errata.',
+      });
+    }
+
+    const token = jwt.sign(
+      {
+        userId: user.userId,
+        email: user.email,
+        role: user.role,
+      },
+      process.env.JWT_SECRET,
+      { expiresIn: '24h' }
+    );
+
+    return res.json({
+      success: true,
+      token,
+      userId: user.userId,
+      username: user.username,
+      email: user.email,
+    });
+  } catch (err) {
+    console.error('[Auth Login Error]', err);
+    return res.status(500).json({
+      success: false,
+      error: err.message,
+    });
+  }
+});
+
+router.get('/me', auth, async (req, res) => {
+  try {
+    const user = await User.findOne({ userId: req.user.userId }).select('-password');
+
+    if (!user) {
+      return res.status(404).json({
+        success: false,
+        error: 'Utente non trovato.',
+      });
+    }
+
+    return res.json({
+      success: true,
+      user,
+    });
+  } catch (err) {
+    return res.status(500).json({
+      success: false,
+      error: err.message,
+    });
+  }
+});
+
+module.exports = router;

digital-twin-news-feature-nicol-ai-frontend/backend/src/routes/profile.js

@@ -0,0 +1,110 @@
+const express = require('express');
+const User = require('../models/User');
+const UserProfile = require('../models/UserProfile');
+const auth = require('../middleware/auth');
+
+const router = express.Router();
+
+router.get('/', auth, async (req, res) => {
+  try {
+    const user = await User.findOne({ userId: req.user.userId }).select('-password');
+
+    if (!user) {
+      return res.status(404).json({
+        success: false,
+        error: 'Profilo non trovato.',
+      });
+    }
+
+    // Read associated UserProfile (may be created/updated by n8n)
+    const userProfile = await UserProfile.findOne({ userId: user.userId }).lean();
+
+    // Convert weights map (from User model) to plain object
+    const userWeights = user.weights instanceof Map ? Object.fromEntries(user.weights) : user.weights || {};
+
+    // Build merged profile: prefer values from userProfile when available
+    const profile = {
+      userId: user.userId,
+      email: user.email,
+      username: user.username,
+      macroTopics: user.macroTopics || [],
+      keywords: user.keywords || [],
+      weights: userWeights,
+      preferredSources: user.preferredSources || [],
+      lastFeedGeneratedAt: user.lastFeedGeneratedAt || null,
+    };
+
+    if (userProfile) {
+      profile.macroTopics = userProfile.macroTopics || profile.macroTopics;
+      profile.keywords = userProfile.keywords || profile.keywords;
+      profile.weights = userProfile.weights || profile.weights;
+      profile.preferredSources = userProfile.preferredSources || profile.preferredSources;
+      profile.lastFeedGeneratedAt = userProfile.lastFeedGeneratedAt || profile.lastFeedGeneratedAt;
+    }
+
+    return res.json({ success: true, profile });
+  } catch (err) {
+    return res.status(500).json({
+      success: false,
+      error: err.message,
+    });
+  }
+});
+
+router.put('/', auth, async (req, res) => {
+  try {
+    const { macroTopics, keywords, preferredSources } = req.body;
+
+    const user = await User.findOne({ userId: req.user.userId });
+    if (!user) {
+      return res.status(404).json({
+        success: false,
+        error: 'Utente non trovato.',
+      });
+    }
+
+    if (macroTopics) user.macroTopics = macroTopics;
+    if (keywords) user.keywords = keywords;
+    if (preferredSources) user.preferredSources = preferredSources;
+
+    user.updatedAt = new Date();
+    await user.save();
+
+    // Sync su user_profiles in modo che n8n e backend siano allineati
+    try {
+      await UserProfile.findOneAndUpdate(
+        { userId: user.userId },
+        {
+          macroTopics: user.macroTopics,
+          keywords: user.keywords,
+          preferredSources: user.preferredSources,
+          updatedAt: new Date(),
+        },
+        { upsert: true }
+      );
+    } catch (e) {
+      console.warn('[Profile Sync] Impossibile aggiornare user_profiles:', e.message || e);
+    }
+
+    const weights = user.weights instanceof Map ? Object.fromEntries(user.weights) : user.weights || {};
+
+    return res.json({
+      success: true,
+      message: 'Profilo aggiornato con successo.',
+      profile: {
+        userId: user.userId,
+        macroTopics: user.macroTopics,
+        keywords: user.keywords,
+        weights,
+        preferredSources: user.preferredSources,
+      },
+    });
+  } catch (err) {
+    return res.status(500).json({
+      success: false,
+      error: err.message,
+    });
+  }
+});
+
+module.exports = router;

digital-twin-news-feature-nicol-ai-frontend/backend/src/routes/stats.js

@@ -0,0 +1,88 @@
+const express = require('express');
+const Article = require('../models/Article');
+const auth = require('../middleware/auth');
+
+const router = express.Router();
+
+router.get('/sentiment', auth, async (req, res) => {
+  try {
+    const result = await Article.aggregate([
+      { $match: { status: 'processed' } },
+      { $group: { _id: '$sentiment', count: { $sum: 1 } } },
+    ]);
+
+    return res.json({ success: true, data: result });
+  } catch (err) {
+    return res.status(500).json({ success: false, error: err.message });
+  }
+});
+
+router.get('/categories', auth, async (req, res) => {
+  try {
+    const result = await Article.aggregate([
+      { $match: { status: 'processed' } },
+      { $group: { _id: '$category', count: { $sum: 1 } } },
+      { $sort: { count: -1 } },
+    ]);
+
+    return res.json({ success: true, data: result });
+  } catch (err) {
+    return res.status(500).json({ success: false, error: err.message });
+  }
+});
+
+router.get('/trending', auth, async (req, res) => {
+  try {
+    const result = await Article.aggregate([
+      { $match: { status: 'processed' } },
+      { $unwind: '$trendingTopics' },
+      { $group: { _id: '$trendingTopics', count: { $sum: 1 } } },
+      { $sort: { count: -1 } },
+      { $limit: 10 },
+    ]);
+
+    return res.json({ success: true, data: result });
+  } catch (err) {
+    return res.status(500).json({ success: false, error: err.message });
+  }
+});
+
+router.get('/sources', auth, async (req, res) => {
+  try {
+    const result = await Article.aggregate([
+      { $match: { status: 'processed' } },
+      { $group: { _id: '$source', count: { $sum: 1 } } },
+      { $sort: { count: -1 } },
+    ]);
+
+    return res.json({ success: true, data: result });
+  } catch (err) {
+    return res.status(500).json({ success: false, error: err.message });
+  }
+});
+
+router.get('/overview', auth, async (req, res) => {
+  try {
+    const total = await Article.countDocuments({});
+    const processed = await Article.countDocuments({ status: 'processed' });
+    const raw = await Article.countDocuments({ status: 'raw' });
+
+    const last24h = new Date(Date.now() - 24 * 60 * 60 * 1000);
+    const recentArticles = await Article.countDocuments({ createdAt: { $gte: last24h } });
+
+    return res.json({
+      success: true,
+      data: {
+        total,
+        processed,
+        raw,
+        recentArticles,
+        processingRate: total > 0 ? ((processed / total) * 100).toFixed(1) : 0,
+      },
+    });
+  } catch (err) {
+    return res.status(500).json({ success: false, error: err.message });
+  }
+});
+
+module.exports = router;

digital-twin-news-feature-nicol-ai-frontend/backend/src/server.js

@@ -0,0 +1,96 @@
+const express = require('express');
+const mongoose = require('mongoose');
+const cors = require('cors');
+const helmet = require('helmet');
+const morgan = require('morgan');
+
+require('dotenv').config();
+
+const authRoutes = require('./routes/auth');
+const articleRoutes = require('./routes/articles');
+const profileRoutes = require('./routes/profile');
+const statsRoutes = require('./routes/stats');
+
+const app = express();
+
+app.use(helmet());
+const allowedOrigins = process.env.CORS_ORIGIN
+  ? process.env.CORS_ORIGIN.split(',')
+  : process.env.NODE_ENV === 'production'
+    ? [process.env.FRONTEND_URL || 'https://your-production-domain.com']
+    : ['http://localhost:5173'];
+
+app.use(
+  cors({
+    origin: (origin, callback) => {
+      if (!origin || allowedOrigins.includes(origin)) return callback(null, true);
+      return callback(new Error('Not allowed by CORS'));
+    },
+    credentials: true,
+  })
+);
+app.use(morgan('dev'));
+app.use(express.json());
+app.use(express.urlencoded({ extended: true }));
+
+app.use('/api/auth', authRoutes);
+app.use('/api/articles', articleRoutes);
+app.use('/api/profile', profileRoutes);
+app.use('/api/stats', statsRoutes);
+
+app.get('/health', (req, res) => {
+  res.json({
+    status: 'ok',
+    timestamp: new Date().toISOString(),
+    service: 'BriefAI Backend',
+    version: '1.0.0',
+  });
+});
+
+app.use((req, res) => {
+  res.status(404).json({
+    success: false,
+    error: 'Endpoint non trovato.',
+  });
+});
+
+app.use((err, req, res, next) => {
+  console.error('[Server Error]', err.stack);
+  res.status(500).json({
+    success: false,
+    error: process.env.NODE_ENV === 'production' ? 'Errore interno del server.' : err.message,
+  });
+  if (typeof next === 'function') {
+    return next(err);
+  }
+  return undefined;
+});
+
+const port = Number.parseInt(process.env.PORT, 10) || 5000;
+
+mongoose
+  .connect(process.env.MONGO_URI)
+  .then(() => {
+    console.log('Connesso a MongoDB Atlas');
+    app.listen(port, () => {
+      console.log(`Backend BriefAI attivo su http://localhost:${port}`);
+      console.log('Endpoints disponibili:');
+      console.log('POST   /api/auth/register');
+      console.log('POST   /api/auth/login');
+      console.log('GET    /api/auth/me');
+      console.log('GET    /api/articles');
+      console.log('GET    /api/articles/:uniqueKey');
+      console.log('GET    /api/profile');
+      console.log('PUT    /api/profile');
+      console.log('GET    /api/stats/sentiment');
+      console.log('GET    /api/stats/categories');
+      console.log('GET    /api/stats/trending');
+      console.log('GET    /api/stats/sources');
+      console.log('GET    /api/stats/overview');
+      console.log('GET    /health');
+    });
+  })
+  .catch((err) => {
+    console.error('Errore connessione MongoDB:', err.message);
+    process.exit(1);
+  });

digital-twin-news-feature-nicol-ai-frontend/docker-compose.yml

@@ -0,0 +1,17 @@
+# version: '3.8'
+
+# services:
+#   n8n:
+#     image: n8nio/n8n:latest
+#     ports:
+#       - "5678:5678"
+#     environment:
+#       - N8N_BASIC_AUTH_ACTIVE=true
+#       - N8N_BASIC_AUTH_USER=admin
+#       - N8N_BASIC_AUTH_PASSWORD=root
+#       - JWT_SECRET=changeme_replace_with_secure_value
+#     volumes:
+#       - n8n_data:/home/node/.n8n
+
+# volumes:
+#   n8n_data:

digital-twin-news-feature-nicol-ai-frontend/docs/n8n/jwt_code_nodes.js

@@ -0,0 +1,40 @@
+// Snippet: JWT and password helpers for n8n Code nodes
+// Usage: paste the needed functions into a Code node at the start of your webhook workflows.
+
+const crypto = require('crypto');
+
+function base64url(bufOrStr){
+  const b = Buffer.isBuffer(bufOrStr) ? bufOrStr : Buffer.from(String(bufOrStr));
+  return b.toString('base64').replace(/\+/g,'-').replace(/\//g,'_').replace(/=+$/,'');
+}
+
+function signJWT(payload, secret, expiresInSec=86400){
+  const header = base64url(JSON.stringify({ alg:'HS256', typ:'JWT' }));
+  const exp = Math.floor(Date.now()/1000) + expiresInSec;
+  const body = base64url(JSON.stringify({ ...payload, exp }));
+  const sig = base64url(crypto.createHmac('sha256', secret).update(`${header}.${body}`).digest());
+  return `${header}.${body}.${sig}`;
+}
+
+function verifyJWT(token, secret){
+  try {
+    const [h,b,s] = token.split('.');
+    const expected = base64url(crypto.createHmac('sha256', secret).update(`${h}.${b}`).digest());
+    if (expected !== s) return null;
+    const payload = JSON.parse(Buffer.from(b.replace(/-/g,'+').replace(/_/g,'/'),'base64').toString());
+    if (payload.exp && Math.floor(Date.now()/1000) > payload.exp) return null;
+    return payload;
+  } catch(e){ return null; }
+}
+
+function hashPassword(password){
+  const salt = crypto.randomBytes(16).toString('hex');
+  const derived = crypto.scryptSync(password, salt, 64).toString('hex');
+  return { salt, hash: derived };
+}
+
+function verifyPassword(password, salt, hash){
+  return crypto.scryptSync(password, salt, 64).toString('hex') === hash;
+}
+
+module.exports = { signJWT, verifyJWT, hashPassword, verifyPassword };

digital-twin-news-feature-nicol-ai-frontend/package.json

@@ -0,0 +1,48 @@
+{
+  "name": "frontend",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@emotion/react": "^11.14.0",
+    "@emotion/styled": "^11.14.1",
+    "@mui/icons-material": "^7.3.9",
+    "@mui/material": "^7.3.9",
+    "@testing-library/dom": "^10.4.1",
+    "@testing-library/jest-dom": "^6.9.1",
+    "@testing-library/react": "^16.3.2",
+    "@testing-library/user-event": "^13.5.0",
+    "axios": "^1.13.6",
+    "chart.js": "^4.5.1",
+    "react": "^19.2.4",
+    "react-chartjs-2": "^5.3.1",
+    "react-dom": "^19.2.4",
+    "react-router-dom": "^7.13.1",
+    "react-scripts": "^5.0.1",
+    "recharts": "^3.8.0",
+    "web-vitals": "^2.1.4"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}

digital-twin-news-feature-nicol-ai-frontend/public/index.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>

digital-twin-news-feature-nicol-ai-frontend/public/manifest.json

@@ -0,0 +1,25 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}

digital-twin-news-feature-nicol-ai-frontend/public/robots.txt

@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:

digital-twin-news-feature-nicol-ai-frontend/start.bat

@@ -0,0 +1,19 @@
+@echo off
+cd /d "%~dp0"
+
+echo Starting n8n with Docker...
+docker-compose up -d n8n
+
+echo Starting Data Pipeline...
+start "data-pipeline" cmd /k "cd briefai\data-pipeline && npm start"
+
+echo Starting AI Analysis...
+start "ai-analysis" cmd /k "cd ai-analysis && call venv\Scripts\activate.bat && python src\scheduler.py"
+
+echo Starting Backend...
+start "backend" cmd /k "cd backend && npm run dev"
+
+echo Starting Frontend...
+start "frontend" cmd /k "cd frontend && npm start"
+
+exit /b 0

frontend-BriefAI/.env

@@ -0,0 +1,2 @@
+VITE_API_URL=http://localhost:5000
+VITE_N8N_URL=https://n8n-cipolla.ampere.lucasacchi.net/webhook

frontend-BriefAI/.gitignore

@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?

frontend-BriefAI/README.md

@@ -0,0 +1,75 @@
+# React + TypeScript + Vite
+
+This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
+
+Currently, two official plugins are available:
+
+- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Oxc](https://oxc.rs)
+- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/)
+
+## React Compiler
+
+The React Compiler is enabled on this template. See [this documentation](https://react.dev/learn/react-compiler) for more information.
+
+Note: This will impact Vite dev & build performances.
+
+## Expanding the ESLint configuration
+
+If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules:
+
+```js
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{ts,tsx}'],
+    extends: [
+      // Other configs...
+
+      // Remove tseslint.configs.recommended and replace with this
+      tseslint.configs.recommendedTypeChecked,
+      // Alternatively, use this for stricter rules
+      tseslint.configs.strictTypeChecked,
+      // Optionally, add this for stylistic rules
+      tseslint.configs.stylisticTypeChecked,
+
+      // Other configs...
+    ],
+    languageOptions: {
+      parserOptions: {
+        project: ['./tsconfig.node.json', './tsconfig.app.json'],
+        tsconfigRootDir: import.meta.dirname,
+      },
+      // other options...
+    },
+  },
+])
+```
+
+You can also install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x) and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom) for React-specific lint rules:
+
+```js
+// eslint.config.js
+import reactX from 'eslint-plugin-react-x'
+import reactDom from 'eslint-plugin-react-dom'
+
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{ts,tsx}'],
+    extends: [
+      // Other configs...
+      // Enable lint rules for React
+      reactX.configs['recommended-typescript'],
+      // Enable lint rules for React DOM
+      reactDom.configs.recommended,
+    ],
+    languageOptions: {
+      parserOptions: {
+        project: ['./tsconfig.node.json', './tsconfig.app.json'],
+        tsconfigRootDir: import.meta.dirname,
+      },
+      // other options...
+    },
+  },
+])
+```

frontend-BriefAI/eslint.config.js

@@ -0,0 +1,23 @@
+import js from '@eslint/js'
+import globals from 'globals'
+import reactHooks from 'eslint-plugin-react-hooks'
+import reactRefresh from 'eslint-plugin-react-refresh'
+import tseslint from 'typescript-eslint'
+import { defineConfig, globalIgnores } from 'eslint/config'
+
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{ts,tsx}'],
+    extends: [
+      js.configs.recommended,
+      tseslint.configs.recommended,
+      reactHooks.configs.flat.recommended,
+      reactRefresh.configs.vite,
+    ],
+    languageOptions: {
+      ecmaVersion: 2020,
+      globals: globals.browser,
+    },
+  },
+])

frontend-BriefAI/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>frontend-briefai</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>

frontend-BriefAI/package.json

@@ -0,0 +1,35 @@
+{
+  "name": "frontend-briefai",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "lint": "eslint .",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "react": "^19.2.5",
+    "react-dom": "^19.2.5",
+    "react-router-dom": "^7.14.1"
+  },
+  "devDependencies": {
+    "@babel/core": "^7.29.0",
+    "@eslint/js": "^9.39.4",
+    "@rolldown/plugin-babel": "^0.2.3",
+    "@types/babel__core": "^7.20.5",
+    "@types/node": "^24.12.2",
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "@vitejs/plugin-react": "^6.0.1",
+    "babel-plugin-react-compiler": "^1.0.0",
+    "eslint": "^9.39.4",
+    "eslint-plugin-react-hooks": "^7.1.1",
+    "eslint-plugin-react-refresh": "^0.5.2",
+    "globals": "^17.5.0",
+    "typescript": "~6.0.2",
+    "typescript-eslint": "^8.58.2",
+    "vite": "^8.0.9"
+  }
+}

frontend-BriefAI/public/icons.svg

@@ -0,0 +1,24 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+  <symbol id="bluesky-icon" viewBox="0 0 16 17">
+    <g clip-path="url(#bluesky-clip)"><path fill="#08060d" d="M7.75 7.735c-.693-1.348-2.58-3.86-4.334-5.097-1.68-1.187-2.32-.981-2.74-.79C.188 2.065.1 2.812.1 3.251s.241 3.602.398 4.13c.52 1.744 2.367 2.333 4.07 2.145-2.495.37-4.71 1.278-1.805 4.512 3.196 3.309 4.38-.71 4.987-2.746.608 2.036 1.307 5.91 4.93 2.746 2.72-2.746.747-4.143-1.747-4.512 1.702.189 3.55-.4 4.07-2.145.156-.528.397-3.691.397-4.13s-.088-1.186-.575-1.406c-.42-.19-1.06-.395-2.741.79-1.755 1.24-3.64 3.752-4.334 5.099"/></g>
+    <defs><clipPath id="bluesky-clip"><path fill="#fff" d="M.1.85h15.3v15.3H.1z"/></clipPath></defs>
+  </symbol>
+  <symbol id="discord-icon" viewBox="0 0 20 19">
+    <path fill="#08060d" d="M16.224 3.768a14.5 14.5 0 0 0-3.67-1.153c-.158.286-.343.67-.47.976a13.5 13.5 0 0 0-4.067 0c-.128-.306-.317-.69-.476-.976A14.4 14.4 0 0 0 3.868 3.77C1.546 7.28.916 10.703 1.231 14.077a14.7 14.7 0 0 0 4.5 2.306q.545-.748.965-1.587a9.5 9.5 0 0 1-1.518-.74q.191-.14.372-.293c2.927 1.369 6.107 1.369 8.999 0q.183.152.372.294-.723.437-1.52.74.418.838.963 1.588a14.6 14.6 0 0 0 4.504-2.308c.37-3.911-.63-7.302-2.644-10.309m-9.13 8.234c-.878 0-1.599-.82-1.599-1.82 0-.998.705-1.82 1.6-1.82.894 0 1.614.82 1.599 1.82.001 1-.705 1.82-1.6 1.82m5.91 0c-.878 0-1.599-.82-1.599-1.82 0-.998.705-1.82 1.6-1.82.893 0 1.614.82 1.599 1.82 0 1-.706 1.82-1.6 1.82"/>
+  </symbol>
+  <symbol id="documentation-icon" viewBox="0 0 21 20">
+    <path fill="none" stroke="#aa3bff" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.35" d="m15.5 13.333 1.533 1.322c.645.555.967.833.967 1.178s-.322.623-.967 1.179L15.5 18.333m-3.333-5-1.534 1.322c-.644.555-.966.833-.966 1.178s.322.623.966 1.179l1.534 1.321"/>
+    <path fill="none" stroke="#aa3bff" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.35" d="M17.167 10.836v-4.32c0-1.41 0-2.117-.224-2.68-.359-.906-1.118-1.621-2.08-1.96-.599-.21-1.349-.21-2.848-.21-2.623 0-3.935 0-4.983.369-1.684.591-3.013 1.842-3.641 3.428C3 6.449 3 7.684 3 10.154v2.122c0 2.558 0 3.838.706 4.726q.306.383.713.671c.76.536 1.79.64 3.581.66"/>
+    <path fill="none" stroke="#aa3bff" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.35" d="M3 10a2.78 2.78 0 0 1 2.778-2.778c.555 0 1.209.097 1.748-.047.48-.129.854-.503.982-.982.145-.54.048-1.194.048-1.749a2.78 2.78 0 0 1 2.777-2.777"/>
+  </symbol>
+  <symbol id="github-icon" viewBox="0 0 19 19">
+    <path fill="#08060d" fill-rule="evenodd" d="M9.356 1.85C5.05 1.85 1.57 5.356 1.57 9.694a7.84 7.84 0 0 0 5.324 7.44c.387.079.528-.168.528-.376 0-.182-.013-.805-.013-1.454-2.165.467-2.616-.935-2.616-.935-.349-.91-.864-1.143-.864-1.143-.71-.48.051-.48.051-.48.787.051 1.2.805 1.2.805.695 1.194 1.817.857 2.268.649.064-.507.27-.857.49-1.052-1.728-.182-3.545-.857-3.545-3.87 0-.857.31-1.558.8-2.104-.078-.195-.349-1 .077-2.078 0 0 .657-.208 2.14.805a7.5 7.5 0 0 1 1.946-.26c.657 0 1.328.092 1.946.26 1.483-1.013 2.14-.805 2.14-.805.426 1.078.155 1.883.078 2.078.502.546.799 1.247.799 2.104 0 3.013-1.818 3.675-3.558 3.87.284.247.528.714.528 1.454 0 1.052-.012 1.896-.012 2.156 0 .208.142.455.528.377a7.84 7.84 0 0 0 5.324-7.441c.013-4.338-3.48-7.844-7.773-7.844" clip-rule="evenodd"/>
+  </symbol>
+  <symbol id="social-icon" viewBox="0 0 20 20">
+    <path fill="none" stroke="#aa3bff" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.35" d="M12.5 6.667a4.167 4.167 0 1 0-8.334 0 4.167 4.167 0 0 0 8.334 0"/>
+    <path fill="none" stroke="#aa3bff" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.35" d="M2.5 16.667a5.833 5.833 0 0 1 8.75-5.053m3.837.474.513 1.035c.07.144.257.282.414.309l.93.155c.596.1.736.536.307.965l-.723.73a.64.64 0 0 0-.152.531l.207.903c.164.715-.213.991-.84.618l-.872-.52a.63.63 0 0 0-.577 0l-.872.52c-.624.373-1.003.094-.84-.618l.207-.903a.64.64 0 0 0-.152-.532l-.723-.729c-.426-.43-.289-.864.306-.964l.93-.156a.64.64 0 0 0 .412-.31l.513-1.034c.28-.562.735-.562 1.012 0"/>
+  </symbol>
+  <symbol id="x-icon" viewBox="0 0 19 19">
+    <path fill="#08060d" fill-rule="evenodd" d="M1.893 1.98c.052.072 1.245 1.769 2.653 3.77l2.892 4.114c.183.261.333.48.333.486s-.068.089-.152.183l-.522.593-.765.867-3.597 4.087c-.375.426-.734.834-.798.905a1 1 0 0 0-.118.148c0 .01.236.017.664.017h.663l.729-.83c.4-.457.796-.906.879-.999a692 692 0 0 0 1.794-2.038c.034-.037.301-.34.594-.675l.551-.624.345-.392a7 7 0 0 1 .34-.374c.006 0 .93 1.306 2.052 2.903l2.084 2.965.045.063h2.275c1.87 0 2.273-.003 2.266-.021-.008-.02-1.098-1.572-3.894-5.547-2.013-2.862-2.28-3.246-2.273-3.266.008-.019.282-.332 2.085-2.38l2-2.274 1.567-1.782c.022-.028-.016-.03-.65-.03h-.674l-.3.342a871 871 0 0 1-1.782 2.025c-.067.075-.405.458-.75.852a100 100 0 0 1-.803.91c-.148.172-.299.344-.99 1.127-.304.343-.32.358-.345.327-.015-.019-.904-1.282-1.976-2.808L6.365 1.85H1.8zm1.782.91 8.078 11.294c.772 1.08 1.413 1.973 1.425 1.984.016.017.241.02 1.05.017l1.03-.004-2.694-3.766L7.796 5.75 5.722 2.852l-1.039-.004-1.039-.004z" clip-rule="evenodd"/>
+  </symbol>
+</svg>

frontend-BriefAI/src/App.css

@@ -0,0 +1,14 @@
+.app-shell {
+  width: 100%;
+  height: 100dvh;
+  display: flex;
+  overflow-x: hidden;
+  overflow-y: auto;
+  box-sizing: border-box;
+}
+
+.app-shell > * {
+  min-width: 0;
+  min-height: 0;
+  flex: 1 1 auto;
+}

frontend-BriefAI/src/App.tsx

@@ -0,0 +1,81 @@
+import { useState } from 'react'
+import type { ReactElement } from 'react'
+import { Navigate, Route, Routes } from 'react-router-dom'
+import './App.css'
+import FeedPage from './pages/FeedPage'
+import HomePage from './pages/HomePage'
+import LoginPage from './pages/LoginPage'
+import OnboardingPage from './pages/OnboardingPage'
+import RegisterPage from './pages/RegisterPage'
+import SettingsPage from './pages/SettingsPage'
+import TrendsPage from './pages/TrendsPage'
+
+function App() {
+  // Stato minimo di autenticazione usato per abilitare/bloccare le route private.
+  const [isAuthenticated, setIsAuthenticated] = useState(false)
+
+  return (
+    <main className="app-shell">
+      <Routes>
+        {/* Home pubblica: prima pagina visibile a utenti non autenticati. */}
+        <Route path="/" element={<HomePage />} />
+        <Route
+          path="/login"
+          element={<LoginPage onLoginSuccess={() => setIsAuthenticated(true)} />}
+        />
+        {/* Route pubblica: consente la registrazione di un nuovo utente. */}
+        <Route
+          path="/register"
+          element={<RegisterPage onRegisterSuccess={() => setIsAuthenticated(true)} />}
+        />
+        <Route path="/onboarding" element={<OnboardingPage />} />
+        {/* Compatibilita: vecchio path /home reindirizzato al nuovo onboarding. */}
+        <Route path="/home" element={<Navigate to="/onboarding" replace />} />
+        <Route
+          path="/feed"
+          element={
+            <ProtectedRoute isAuthenticated={isAuthenticated}>
+              <FeedPage />
+            </ProtectedRoute>
+          }
+        />
+        <Route
+          path="/tendenze"
+          element={
+            <ProtectedRoute isAuthenticated={isAuthenticated}>
+              <TrendsPage />
+            </ProtectedRoute>
+          }
+        />
+        <Route
+          path="/impostazioni"
+          element={
+            <ProtectedRoute isAuthenticated={isAuthenticated}>
+              <SettingsPage />
+            </ProtectedRoute>
+          }
+        />
+        <Route path="*" element={<Navigate to="/" replace />} />
+      </Routes>
+    </main>
+  )
+}
+
+type ProtectedRouteProps = {
+  isAuthenticated: boolean
+  children: ReactElement
+}
+
+function ProtectedRoute({ isAuthenticated, children }: ProtectedRouteProps) {
+  // Guard tecnica della route: se l'utente non e autenticato, verifica anche
+  // la presenza di un token nel localStorage come fallback per evitare
+  // condizioni di gara (es. subito dopo la registrazione).
+  const token = localStorage.getItem('briefai_token')
+  if (!isAuthenticated && !token) {
+    return <Navigate to="/login" replace />
+  }
+
+  return children
+}
+
+export default App

frontend-BriefAI/src/assets/react.svg

@@ -0,0 +1 @@
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frontend-BriefAI/src/components/AccountSettings.tsx

@@ -0,0 +1,75 @@
+type SubscriptionState = 'free' | 'pro'
+
+type AccountSettingsProps = {
+  username: string
+  email: string
+  subscriptionState: SubscriptionState
+  onUpgrade: () => void
+  onCancelSubscription: () => void
+}
+
+// Sezione account: mostra profilo e gestisce in modo condizionale il piano attivo.
+function AccountSettings({username, email, subscriptionState, onUpgrade, onCancelSubscription}: AccountSettingsProps) {
+  const isProPlan = subscriptionState === 'pro'
+
+  return (
+    <section className="settings-stack" aria-label="Profilo">
+      <section className="settings-card" aria-label="Informazioni profilo">
+        <header className="settings-section-header">
+          <div>
+            <h2>Informazioni profilo</h2>
+            <p>Controlla i dati di base associati al tuo account.</p>
+          </div>
+        </header>
+
+        <div className="profile-info-grid">
+          <div>
+            <span className="profile-info-label">Email</span>
+            <p className="profile-info-value">{email}</p>
+          </div>
+          <div>
+            <span className="profile-info-label">Nome utente</span>
+            <p className="profile-info-value">{username}</p>
+          </div>
+        </div>
+      </section>
+
+      <section className="settings-card" aria-label="Gestione abbonamento">
+        <header className="settings-section-header">
+          <div>
+            <h2>Gestione abbonamento</h2>
+            <p>Gestisci il piano attualmente associato al tuo profilo.</p>
+          </div>
+        </header>
+
+        <div className="subscription-box">
+          <div className="subscription-copy">
+            <span className={`plan-badge ${isProPlan ? 'pro' : 'free'}`}>
+              {isProPlan ? 'Piano Pro' : 'Piano Gratuito'}
+            </span>
+            {isProPlan ? (
+              <p>Scade il 12/12/2026</p>
+            ) : (
+              <p>Passa al Pro per sbloccare monitoraggio e analisi avanzate.</p>
+            )}
+          </div>
+
+          <div className="subscription-actions">
+            {isProPlan ? (
+              <button type="button" className="subscription-link-button" onClick={onCancelSubscription}>
+                Annulla abbonamento
+              </button>
+            ) : (
+              <button type="button" className="subscription-upgrade-button" onClick={onUpgrade}>
+                Passa a Pro
+              </button>
+            )}
+          </div>
+        </div>
+      </section>
+    </section>
+  )
+}
+
+export type { SubscriptionState }
+export default AccountSettings

frontend-BriefAI/src/components/FeedContent.tsx

@@ -0,0 +1,113 @@
+import { useEffect, useState } from 'react'
+import MagicCard from './MagicCard'
+import { fetchPersonalizedFeed } from '../services/feedService'
+import type { Article } from '../types/article'
+
+type FeedContentProps = {
+  sentimentFilter?: string | null
+  topicsFilter?: string | null
+}
+
+function FeedContent({ sentimentFilter = null, topicsFilter = null }: FeedContentProps) {
+  const [articles, setArticles] = useState<Article[]>([])
+  const [status, setStatus] = useState<'loading' | 'ok' | 'error'>('loading')
+
+// Prende il fetch del feed personalizzato e popola la variabile di stato con i dati
+  useEffect(() => {fetchPersonalizedFeed().then((data) => {
+        setArticles(data)
+        setStatus('ok')
+      })
+      .catch(() => setStatus('error'))
+  }, [])
+
+  return (
+    <section className="feed-content" aria-label="Contenuto feed">
+      <header className="feed-header">
+        <p className="feed-kicker">BriefAI Notizie</p>
+        <h1>Il tuo flusso di intelligenza</h1>
+        <p>Notizie personalizzate con approfondimenti AI</p>
+      </header>
+{/* Gestione degli stati*/}
+      {status === 'loading' && <p>Caricamento feed...</p>}
+      {status === 'error' && <p>Errore nel caricamento del feed.</p>}
+{/*Render della lista di articoli se il caricamento è andato a buon fine*/}
+      {status === 'ok' && (
+        <>
+          {/* Client-side filtering */}
+          {(() => {
+            const matchesTopic = (a: Article) => {
+              if (!topicsFilter || topicsFilter === 'All Topics') return true
+              const topic = topicsFilter.toLowerCase()
+              const catMatch = (a.category || '').toLowerCase() === topic
+              const trending = (a.trendingTopics || []).some((t) =>
+                String(t || '').toLowerCase() === topic
+              )
+              const macroTopicMatch = (a.macroTopics || []).some((t) =>
+                String(t || '').toLowerCase() === topic
+              )
+              return catMatch || trending || macroTopicMatch
+            }
+
+            const matchesSentiment = (a: Article) => {
+              if (!sentimentFilter || sentimentFilter === 'All Sentiment') return true
+              return a.sentiment === sentimentFilter
+            }
+
+            const filtered = articles.filter((a) => matchesSentiment(a) && matchesTopic(a))
+
+            return (
+              <div>
+                {filtered.length > 0 ? (
+                  <>
+                    <div className="feed-list">
+                      {filtered.map((a) => (
+                        <MagicCard
+                          key={a.uniqueKey}
+                          articleId={a.uniqueKey}
+                          source={a.source}
+                          timeAgo={new Date(a.pubDate).toLocaleString()}
+                          sentiment={
+                            a.sentiment === 'Positive'
+                              ? 'Positivo'
+                              : a.sentiment === 'Negative'
+                              ? 'Negativo'
+                              : 'Neutrale'
+                          }
+                          title={a.title}
+                          summary={a.summary}
+                          tags={a.macroTopics?.length ? a.macroTopics : (a.trendingTopics || [a.category])}
+                          entities={a.entities || []}
+                        />
+                      ))}
+                    </div>
+                    <p className="feed-filter-info">
+                      Mostrando {filtered.length} di {articles.length} articoli
+                      {(sentimentFilter && sentimentFilter !== 'All Sentiment') ||
+                      (topicsFilter && topicsFilter !== 'All Topics')
+                        ? ` con${sentimentFilter && sentimentFilter !== 'All Sentiment' ? ` sentiment ${sentimentFilter}` : ''}${
+                            sentimentFilter && topicsFilter ? ' e' : ''
+                          }${topicsFilter && topicsFilter !== 'All Topics' ? ` topic ${topicsFilter}` : ''}`
+                        : ''}
+                    </p>
+                  </>
+                ) : (
+                  <p className="feed-no-results">
+                    Nessun articolo trovato con i filtri selezionati
+                  </p>
+                )}
+              </div>
+            )
+          })()}
+        </>
+      )}
+
+      <div className="feed-footer">
+        <button type="button" className="load-more-button">
+          Carica altre notizie
+        </button>
+      </div>
+    </section>
+  )
+}
+
+export default FeedContent

frontend-BriefAI/src/components/FeedSidebar.tsx

@@ -0,0 +1,94 @@
+import { useNavigate } from 'react-router-dom'
+
+type FeedSidebarProps = {
+  activeItem?: 'feed' | 'tendenze' | 'impostazioni'
+}
+
+// Sidebar principale del feed: gestisce brand, navigazione e blocco profilo.
+const navigationItems = [
+  { id: 'feed', label: 'Notizie', icon: LayoutDashboardIcon },
+  { id: 'tendenze', label: 'Tendenze', icon: TrendingUpIcon },
+  { id: 'impostazioni', label: 'Impostazioni', icon: SettingsIcon },
+] as const
+
+function FeedSidebar({ activeItem = 'feed' }: FeedSidebarProps) {
+  const navigate = useNavigate()
+
+  return (
+    <aside className="feed-sidebar" aria-label="Navigazione principale">
+      {/* Logo BreafAI. */}
+      <div className="sidebar-brand">
+        <div className="brand-mark" aria-hidden="true">
+          <SparklesIcon />
+        </div>
+        <div className="brand-text">BriefAI</div>
+      </div>
+
+      {/* Menu di navigazione laterale. */}
+      <nav className="sidebar-nav" aria-label="Menu notizie">
+        {navigationItems.map((item) => {
+          const isActive = item.id === activeItem
+          const Icon = item.icon
+
+          return (
+            <button
+              key={item.id}
+              type="button"
+              className={`sidebar-nav-item ${isActive ? 'active' : ''}`}
+              onClick={() => navigate(item.id === 'feed' ? '/feed' : `/${item.id}`)}
+            >
+              <Icon />
+              <span>{item.label}</span>
+            </button>
+          )
+        })}
+      </nav>
+
+      {/* Box profilo: resta agganciato in basso. */}
+      <div className="sidebar-profile">
+        <div className="profile-avatar" aria-hidden="true">
+          JD
+        </div>
+        <div className="profile-meta">
+          <strong>John Doe</strong>
+          <span>john@example.com</span>
+        </div>
+      </div>
+    </aside>
+  )
+}
+
+function SparklesIcon() {
+  return <span aria-hidden="true">✦</span>
+}
+
+function LayoutDashboardIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <rect x="3" y="3" width="8" height="8" rx="2" />
+      <rect x="13" y="3" width="8" height="5" rx="2" />
+      <rect x="13" y="10" width="8" height="11" rx="2" />
+      <rect x="3" y="13" width="8" height="8" rx="2" />
+    </svg>
+  )
+}
+
+function TrendingUpIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <path d="M3 17l6-6 4 4 8-8" />
+      <path d="M14 7h7v7" />
+    </svg>
+  )
+}
+
+function SettingsIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <path d="M12 8.5a3.5 3.5 0 1 0 0 7 3.5 3.5 0 0 0 0-7Z" />
+      <path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.05.05a2 2 0 0 1-1.42 3.41 2 2 0 0 1-1.42-.59l-.06-.05a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-4 0v-.08a1.65 1.65 0 0 0-1-1.51 1.65 1.65 0 0 0-1.82.33l-.06.05a2 2 0 0 1-2.84-2.83l.05-.05A1.65 1.65 0 0 0 4.6 15a1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1 0-4h.09a1.65 1.65 0 0 0 1.51-1 1.65 1.65 0 0 0-.33-1.82l-.05-.05A2 2 0 0 1 5.64 3.72a2 2 0 0 1 1.42.59l.06.05a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 4 0v.08a1.65 1.65 0 0 0 1 1.51h.06a1.65 1.65 0 0 0 1.82-.33l.06-.05a2 2 0 0 1 2.83 2.83l-.05.05A1.65 1.65 0 0 0 20.4 9H21a2 2 0 0 1 0 4h-.08a1.65 1.65 0 0 0-1.51 1Z" />
+    </svg>
+  )
+}
+
+export default FeedSidebar

frontend-BriefAI/src/components/FeedTopbar.tsx

@@ -0,0 +1,65 @@
+type FeedTopbarProps = {
+  showFeedFilters?: boolean
+  sentimentFilter?: string | null
+  onSentimentChange?: (sentiment: string) => void
+  topicsFilter?: string | null
+  onTopicChange?: (topic: string) => void
+}
+
+function FeedTopbar({
+  showFeedFilters = false,
+  sentimentFilter = null,
+  onSentimentChange,
+  topicsFilter = null,
+  onTopicChange,
+}: FeedTopbarProps) {
+  return (
+    <header
+      className={`feed-topbar ${showFeedFilters ? 'with-filters' : ''}`}
+      aria-label="Intestazione feed"
+    >
+      {showFeedFilters ? (
+        <nav className="feed-filter-nav" aria-label="Filtri feed">
+          <label className="feed-filter-control" htmlFor="sentiment-filter">
+            <span className="feed-filter-label">Sentiment</span>
+            <select
+              id="sentiment-filter"
+              value={sentimentFilter || 'All Sentiment'}
+              onChange={(e) => onSentimentChange?.(e.target.value)}
+            >
+              <option>All Sentiment</option>
+              <option>Positive</option>
+              <option>Negative</option>
+              <option>Neutral</option>
+            </select>
+          </label>
+
+          <label className="feed-filter-control" htmlFor="topic-filter">
+            <span className="feed-filter-label">Topics</span>
+            <select
+              id="topic-filter"
+              value={topicsFilter || 'All Topics'}
+              onChange={(e) => onTopicChange?.(e.target.value)}
+            >
+              <option>All Topics</option>
+              <option>Intelligenza Artificiale</option>
+              <option>Cybersecurity</option>
+              <option>Business & Finanza</option>
+              <option>Politica & Geopolitica</option>
+              <option>Startup & Innovazione</option>
+              <option>Software & Sviluppo</option>
+              <option>Scienza & Ricerca</option>
+              <option>Energia & Ambiente</option>
+              <option>Economia & Mercati</option>
+              <option>Social Media & Cultura</option>
+              <option>Salute & Medicina</option>
+              <option>Trasporti & Mobilità</option>
+            </select>
+          </label>
+        </nav>
+      ) : null}
+    </header>
+  )
+}
+
+export default FeedTopbar

frontend-BriefAI/src/components/InterestPreferences.tsx

@@ -0,0 +1,78 @@
+type InterestPreferencesProps = {
+  selectedMacroTopics: string[]
+  onToggleMacroTopic: (topic: string) => void
+  onSaveMacroTopics: () => void
+}
+
+type CategoryOption = {
+  label: string
+  emoji: string
+}
+
+const macroTopicOptions: CategoryOption[] = [
+  { label: 'Intelligenza Artificiale', emoji: '🤖' },
+  { label: 'Cybersecurity', emoji: '🔒' },
+  { label: 'Business & Finanza', emoji: '💼' },
+  { label: 'Politica & Geopolitica', emoji: '⚖️' },
+  { label: 'Startup & Innovazione', emoji: '🚀' },
+  { label: 'Software & Sviluppo', emoji: '💻' },
+  { label: 'Scienza & Ricerca', emoji: '🔬' },
+  { label: 'Energia & Ambiente', emoji: '🌱' },
+  { label: 'Economia & Mercati', emoji: '📈' },
+  { label: 'Social Media & Cultura', emoji: '📱' },
+  { label: 'Salute & Medicina', emoji: '🏥' },
+  { label: 'Trasporti & Mobilità', emoji: '🚗' },
+]
+
+// Sezione interessi: gestisce la selezione rapida delle categorie del feed.
+function InterestPreferences({ selectedMacroTopics, onToggleMacroTopic, onSaveMacroTopics }: InterestPreferencesProps) {
+  return (
+    <section className="settings-card" aria-label="Le tue categorie">
+      <header className="settings-section-header">
+        <div>
+          <h2>I tuoi Macro-Topics</h2>
+          <p>Scegli i macro-temi che devono modellare il tuo feed.</p>
+        </div>
+      </header>
+
+      <div className="category-grid">
+        {macroTopicOptions.map((topic) => {
+          const isSelected = selectedMacroTopics.includes(topic.label)
+
+          return (
+            <button
+              key={topic.label}
+              type="button"
+              className={`category-tile ${isSelected ? 'selected' : ''}`}
+              onClick={() => onToggleMacroTopic(topic.label)}
+            >
+              <span className="category-emoji" aria-hidden="true">
+                {topic.emoji}
+              </span>
+              <span className="category-label">{topic.label}</span>
+            </button>
+          )
+        })}
+      </div>
+
+      <div className="settings-action-row">
+        <button type="button" className="settings-save-button" onClick={onSaveMacroTopics}>
+          <SaveIcon />
+          Salva
+        </button>
+      </div>
+    </section>
+  )
+}
+
+function SaveIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <path d="M17 3H5a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2V7l-4-4Z" />
+      <path d="M7 3v6h8V3" />
+      <path d="M7 21v-6h10v6" />
+    </svg>
+  )
+}
+
+export default InterestPreferences

frontend-BriefAI/src/components/MagicCard.tsx

@@ -0,0 +1,141 @@
+import type { ReactNode } from 'react'
+import { useState } from 'react'
+import { sendFeedback } from '../services/feedbackService'
+
+type MagicCardProps = {
+  articleId?: string
+  source: string
+  timeAgo: string
+  sentiment: 'Positivo' | 'Negativo' | 'Neutrale'
+  title: string
+  summary: string
+  tags: string[]
+  entities: string[]
+}
+
+// Card notizia: mostra fonte, sentiment, testo, tag, entità e azioni rapide.
+function MagicCard({ articleId, source, timeAgo, sentiment, title, summary, tags, entities }: MagicCardProps) {
+  const [voted, setVoted] = useState<1 | -1 | null>(null)
+
+  const handleVote = (vote: 1 | -1) => {
+    if (voted !== null) return
+    setVoted(vote)
+    if (articleId) sendFeedback(articleId, vote)
+  }
+
+  return (
+    <article className="magic-card">
+      {/* Testata card: fonte e badge del sentiment allineati ai lati opposti. */}
+      <header className="magic-card-header">
+        <div>
+          <p className="magic-card-source">
+            {source} • {timeAgo}
+          </p>
+        </div>
+        <span className={`sentiment-badge ${sentiment.toLowerCase()}`}>{sentiment}</span>
+      </header>
+
+      <h3 className="magic-card-title">{title}</h3>
+      <p className="magic-card-summary">{summary}</p>
+
+      {/* Tag tematici: servono a classificare velocemente la notizia. */}
+      <div className="magic-card-tags">
+        {tags.map((tag) => (
+          <span key={tag} className="tag-chip">
+            {tag}
+          </span>
+        ))}
+      </div>
+
+      {/* Entità rilevate: evidenziano i nomi chiave citati nella notizia. */}
+      <div className="magic-card-entities">
+        <span className="entities-label">Entità:</span>
+        <div className="chip-wrap">
+          {entities.map((entity) => (
+            <span key={entity} className="entity-chip">
+              {entity}
+            </span>
+          ))}
+        </div>
+      </div>
+
+      {/* Azioni rapide: pulsanti iconici per interagire con la card. */}
+      <footer className="magic-card-actions" aria-label="Azioni notizia">
+        <ActionButton
+          label="Mi piace"
+          tone="like"
+          onClick={() => handleVote(1)}
+          disabled={voted !== null}
+          style={{ opacity: voted === -1 ? 0.4 : 1 }}
+        >
+          <ThumbUpIcon />
+        </ActionButton>
+        <ActionButton
+          label="Non mi piace"
+          tone="dislike"
+          onClick={() => handleVote(-1)}
+          disabled={voted !== null}
+          style={{ opacity: voted === 1 ? 0.4 : 1 }}
+        >
+          <ThumbDownIcon />
+        </ActionButton>
+        <ActionButton label="Salva" tone="save">
+          <BookmarkIcon />
+        </ActionButton>
+        <ActionButton label="Condividi" tone="share">
+          <ShareIcon />
+        </ActionButton>
+      </footer>
+    </article>
+  )
+}
+
+// Piccolo bottone riutilizzabile per mantenere coerente il footer azioni.
+function ActionButton({ label, tone, children, onClick, disabled, style }: { label: string; tone: string; children: ReactNode; onClick?: () => void; disabled?: boolean; style?: React.CSSProperties }) {
+  return (
+    <button
+      type="button"
+      className={`action-button ${tone}`}
+      aria-label={label}
+      onClick={onClick}
+      disabled={disabled}
+      style={style}
+    >
+      {children}
+    </button>
+  )
+}
+
+function ThumbUpIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <path d="M7 11v10H4V11h3Zm3 10h7.5a2.5 2.5 0 0 0 2.45-2.02l1.03-5.48A2.5 2.5 0 0 0 18.53 10H13V5.5a2.5 2.5 0 0 0-5 0V11L10 21Z" />
+    </svg>
+  )
+}
+
+function ThumbDownIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <path d="M7 13V3H4v10h3Zm3-10h7.5a2.5 2.5 0 0 1 2.45 2.02l1.03 5.48A2.5 2.5 0 0 1 18.53 14H13v4.5a2.5 2.5 0 0 1-5 0V13L10 3Z" />
+    </svg>
+  )
+}
+
+function BookmarkIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <path d="M6 3a2 2 0 0 0-2 2v16l8-4 8 4V5a2 2 0 0 0-2-2H6Z" />
+    </svg>
+  )
+}
+
+function ShareIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <path d="M18 8a3 3 0 1 0-2.82-4h-.01A3 3 0 0 0 18 8ZM6 15a3 3 0 1 0 0 6 3 3 0 0 0 0-6Zm12-4a3 3 0 0 0-2.83 2H15L9 10V8.8A3 3 0 1 0 7.4 10l5.2 2.6v.4a3 3 0 1 0 1.4 2.4V14l5.16-2.58A3 3 0 0 0 18 11Z" />
+    </svg>
+  )
+}
+
+export default MagicCard

frontend-BriefAI/src/components/ProtectedRoute.tsx

@@ -0,0 +1,17 @@
+import { useEffect, useState } from 'react';
+import { Navigate, Outlet } from 'react-router-dom';
+import { getMe } from '../services/authService';
+
+export default function ProtectedRoute() {
+  const [status, setStatus] = useState<'loading'|'ok'|'unauth'>('loading');
+
+  useEffect(() => {
+    getMe().then(user =>
+      setStatus(user ? 'ok' : 'unauth')
+    ).catch(() => setStatus('unauth'));
+  }, []);
+
+  if (status === 'loading') return <div>Caricamento...</div>;
+  if (status === 'unauth') return <Navigate to='/login' replace />;
+  return <Outlet />;
+}

frontend-BriefAI/src/components/SettingsTabs.tsx

@@ -0,0 +1,34 @@
+type SettingsTab = 'interests' | 'account'
+
+type SettingsTabsProps = {
+  activeTab: SettingsTab
+  onTabChange: (tab: SettingsTab) => void
+}
+
+const tabItems: Array<{ id: SettingsTab; label: string }> = [
+  { id: 'interests', label: 'Interessi' },
+  { id: 'account', label: 'Profilo' },
+]
+
+// Tabs di Settings: servono per separare preferenze feed e dati account.
+function SettingsTabs({ activeTab, onTabChange }: SettingsTabsProps) {
+  return (
+    <div className="settings-tabs" role="tablist" aria-label="Schede impostazioni">
+      {tabItems.map((tab) => (
+        <button
+          key={tab.id}
+          type="button"
+          role="tab"
+          aria-selected={activeTab === tab.id}
+          className={`settings-tab ${activeTab === tab.id ? 'active' : ''}`}
+          onClick={() => onTabChange(tab.id)}
+        >
+          {tab.label}
+        </button>
+      ))}
+    </div>
+  )
+}
+
+export type { SettingsTab }
+export default SettingsTabs

frontend-BriefAI/src/components/TrackedKeywords.tsx

@@ -0,0 +1,110 @@
+type TrackedKeywordsProps = {
+  keywords: string[]
+  keywordInput: string
+  onKeywordInputChange: (value: string) => void
+  onAddKeyword: (keyword: string) => void
+  onRemoveKeyword: (keyword: string) => void
+  onSaveKeywords: () => void
+}
+
+const keywordSuggestions = ['OpenAI', 'Google AI', 'Anthropic', 'Tesla', 'SpaceX']
+
+// Sezione keyword: permette di aggiungere, rimuovere e salvare le entità monitorate.
+function TrackedKeywords({
+  keywords,
+  keywordInput,
+  onKeywordInputChange,
+  onAddKeyword,
+  onRemoveKeyword,
+  onSaveKeywords,
+}: TrackedKeywordsProps) {
+  const handleSubmit = () => {
+    onAddKeyword(keywordInput)
+  }
+
+  return (
+    <section className="settings-card" aria-label="Parole chiave monitorate">
+      <header className="settings-section-header">
+        <div>
+          <h2>Parole chiave monitorate</h2>
+          <p>Monitora aziende, persone e temi con un tracciamento rapido.</p>
+        </div>
+      </header>
+
+      <div className="keyword-toolbar">
+        <input
+          type="text"
+          className="settings-keyword-input"
+          placeholder="Aggiungi parola chiave..."
+          value={keywordInput}
+          onChange={(event) => onKeywordInputChange(event.target.value)}
+          onKeyDown={(event) => {
+            if (event.key === 'Enter') {
+              event.preventDefault()
+              handleSubmit()
+            }
+          }}
+        />
+        <button type="button" className="keyword-add-button" onClick={handleSubmit}>
+          <PlusIcon />
+          Aggiungi
+        </button>
+      </div>
+
+      <div className="suggestion-row" aria-label="Suggerimenti parole chiave">
+        {keywordSuggestions.map((suggestion) => (
+          <button
+            key={suggestion}
+            type="button"
+            className="suggestion-chip"
+            onClick={() => onAddKeyword(suggestion)}
+          >
+            <span aria-hidden="true">+</span>
+            {suggestion}
+          </button>
+        ))}
+      </div>
+
+      {keywords.length > 0 && (
+        <div className="tracked-chip-wrap">
+          {keywords.map((keyword) => (
+            <span key={keyword} className="tracked-chip">
+              {keyword}
+              <button
+                type="button"
+                className="tracked-chip-remove"
+                aria-label={`Rimuovi ${keyword}`}
+                onClick={() => onRemoveKeyword(keyword)}
+              >
+                x
+              </button>
+            </span>
+          ))}
+        </div>
+      )}
+
+      <div className="settings-action-row">
+        <button type="button" className="settings-save-button" onClick={onSaveKeywords}>
+          <SaveIcon />
+          Salva
+        </button>
+      </div>
+    </section>
+  )
+}
+
+function PlusIcon() {
+  return <span aria-hidden="true">+</span>
+}
+
+function SaveIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <path d="M17 3H5a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2V7l-4-4Z" />
+      <path d="M7 3v6h8V3" />
+      <path d="M7 21v-6h10v6" />
+    </svg>
+  )
+}
+
+export default TrackedKeywords

frontend-BriefAI/src/index.css

@@ -0,0 +1,42 @@
+:root {
+  --text: #13212b;
+  --muted: #4e636f;
+  --bg-top: #f7fbff;
+  --bg-bottom: #e8f2ff;
+  --panel-bg: rgba(255, 255, 255, 0.82);
+  --panel-border: #c7d7e3;
+  --panel-shadow: 0 22px 55px rgba(17, 44, 70, 0.18);
+  --input-bg: #ffffff;
+  --focus: #1f7ab8;
+  --accent-a: #0e7490;
+  --accent-b: #155e75;
+  --danger: #c23616;
+}
+
+* {
+  box-sizing: border-box;
+}
+
+html,
+body,
+#root {
+  width: 100%;
+  height: 100%;
+}
+
+body {
+  margin: 0;
+  min-height: 100%;
+  color: var(--text);
+  font-family: 'Space Grotesk', 'Segoe UI', sans-serif;
+  line-height: 1.45;
+  overflow-x: hidden;
+  background:
+    radial-gradient(circle at 15% 15%, rgba(31, 122, 184, 0.2), transparent 34%),
+    radial-gradient(circle at 85% 85%, rgba(14, 116, 144, 0.22), transparent 28%),
+    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
+}
+
+p {
+  margin: 0;
+}

frontend-BriefAI/src/main.tsx

@@ -0,0 +1,13 @@
+import { StrictMode } from 'react'
+import { createRoot } from 'react-dom/client'
+import { BrowserRouter } from 'react-router-dom'
+import './index.css'
+import App from './App.tsx'
+
+createRoot(document.getElementById('root')!).render(
+  <StrictMode>
+    <BrowserRouter>
+      <App />
+    </BrowserRouter>
+  </StrictMode>,
+)

frontend-BriefAI/src/pages/FeedPage.css

@@ -0,0 +1,441 @@
+.feed-layout {
+  height: 100%;
+  display: grid;
+  grid-template-columns: 256px minmax(0, 1fr);
+  background: #f8fafc;
+  overflow: hidden;
+}
+
+.feed-sidebar {
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  min-height: 0;
+  padding: 20px 16px;
+  background: #fff;
+  border-right: 1px solid #e5e7eb;
+  overflow-y: auto;
+}
+
+.sidebar-brand {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding-bottom: 20px;
+  border-bottom: 1px solid #e5e7eb;
+}
+
+.brand-mark {
+  width: 40px;
+  height: 40px;
+  border-radius: 14px;
+  display: grid;
+  place-items: center;
+  color: #fff;
+  background: linear-gradient(135deg, #2563eb, #7c3aed);
+}
+
+.brand-mark span {
+  font-size: 18px;
+}
+
+.brand-text {
+  font-size: 20px;
+  font-weight: 700;
+  background: linear-gradient(135deg, #2563eb, #7c3aed);
+  -webkit-background-clip: text;
+  background-clip: text;
+  color: transparent;
+}
+
+.sidebar-nav {
+  display: grid;
+  gap: 6px;
+  padding-top: 20px;
+}
+
+.sidebar-nav-item {
+  width: 100%;
+  margin-top: 0;
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 12px 14px;
+  border: none;
+  border-radius: 14px;
+  color: #64748b;
+  background: transparent;
+  text-align: left;
+  cursor: pointer;
+}
+
+.sidebar-nav-item:hover {
+  background: #f1f5f9;
+}
+
+.sidebar-nav-item.active {
+  color: #fff;
+  background: linear-gradient(135deg, #2563eb, #7c3aed);
+  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.18);
+}
+
+.sidebar-nav-item svg {
+  width: 18px;
+  height: 18px;
+  fill: none;
+  stroke: currentColor;
+  stroke-width: 2;
+  stroke-linecap: round;
+  stroke-linejoin: round;
+  flex: 0 0 auto;
+}
+
+.sidebar-profile {
+  margin-top: auto;
+  position: sticky;
+  bottom: 0;
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding-top: 18px;
+  border-top: 1px solid #e5e7eb;
+  background: #fff;
+}
+
+.profile-avatar {
+  width: 44px;
+  height: 44px;
+  border-radius: 999px;
+  display: grid;
+  place-items: center;
+  color: #fff;
+  font-weight: 700;
+  background: linear-gradient(135deg, #2563eb, #7c3aed);
+}
+
+.profile-meta {
+  display: grid;
+}
+
+.profile-meta strong {
+  font-size: 14px;
+}
+
+.profile-meta span {
+  font-size: 12px;
+  color: #64748b;
+}
+
+.feed-main {
+  min-width: 0;
+  display: flex;
+  flex-direction: column;
+  min-height: 0;
+  overflow: hidden;
+}
+
+.feed-topbar {
+  height: 64px;
+  background: #fff;
+  border-bottom: 1px solid #e5e7eb;
+}
+
+.feed-topbar.with-filters {
+  height: auto;
+  min-height: 64px;
+  display: flex;
+  align-items: center;
+  padding: 10px 24px;
+}
+
+.feed-filter-nav {
+  width: 100%;
+  max-width: 896px;
+  margin: 0 auto;
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+.feed-filter-control {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  padding: 6px 10px;
+  border: 1px solid #e2e8f0;
+  border-radius: 12px;
+  background: #f8fafc;
+}
+
+.feed-filter-label {
+  font-size: 12px;
+  font-weight: 700;
+  color: #64748b;
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+}
+
+.feed-filter-control select {
+  border: 1px solid #cbd5e1;
+  border-radius: 10px;
+  padding: 8px 10px;
+  font: inherit;
+  color: #0f172a;
+  background: #fff;
+}
+
+.feed-filter-control select:focus-visible {
+  outline: 2px solid #1f7ab8;
+  outline-offset: 1px;
+}
+
+.feed-content {
+  flex: 1;
+  width: 100%;
+  max-width: 896px;
+  margin: 0 auto;
+  padding: 32px 24px 48px;
+  overflow-y: auto;
+}
+
+.feed-header {
+  margin-bottom: 24px;
+}
+
+.feed-kicker {
+  margin-bottom: 6px;
+  font-size: 13px;
+  font-weight: 700;
+  letter-spacing: 0.12em;
+  text-transform: uppercase;
+  color: #2563eb;
+}
+
+.feed-header h1 {
+  margin: 0 0 8px;
+  font-size: clamp(34px, 4vw, 48px);
+}
+
+.feed-header p {
+  color: #64748b;
+}
+
+.feed-list {
+  display: grid;
+  gap: 16px;
+}
+
+.magic-card {
+  background: #fff;
+  border: 1px solid #e5e7eb;
+  border-radius: 20px;
+  padding: 20px;
+  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
+  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
+}
+
+.magic-card:hover {
+  transform: translateY(-2px);
+  border-color: #dbeafe;
+  box-shadow: 0 16px 34px rgba(37, 99, 235, 0.08);
+}
+
+.magic-card-header {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 16px;
+  margin-bottom: 14px;
+}
+
+.magic-card-source {
+  font-size: 13px;
+  color: #64748b;
+}
+
+.sentiment-badge {
+  border-radius: 999px;
+  padding: 6px 10px;
+  font-size: 12px;
+  font-weight: 700;
+}
+
+.sentiment-badge.positivo {
+  color: #166534;
+  background: #dcfce7;
+}
+
+.sentiment-badge.negativo {
+  color: #991b1b;
+  background: #fee2e2;
+}
+
+.sentiment-badge.neutrale {
+  color: #334155;
+  background: #e2e8f0;
+}
+
+.magic-card-title {
+  margin: 0 0 10px;
+  font-size: 22px;
+  line-height: 1.2;
+  color: #111827;
+  transition: color 180ms ease;
+}
+
+.magic-card:hover .magic-card-title {
+  color: #2563eb;
+}
+
+.magic-card-summary {
+  line-height: 1.7;
+  color: #475569;
+}
+
+.magic-card-tags,
+.magic-card-entities {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 8px;
+  margin-top: 16px;
+}
+
+.tag-chip {
+  display: inline-flex;
+  align-items: center;
+  padding: 7px 12px;
+  border-radius: 999px;
+  color: #1d4ed8;
+  background: #dbeafe;
+  font-size: 13px;
+  font-weight: 600;
+}
+
+.entities-label {
+  font-size: 13px;
+  font-weight: 600;
+  color: #64748b;
+}
+
+.entity-chip {
+  display: inline-flex;
+  align-items: center;
+  padding: 7px 12px;
+  border-radius: 999px;
+  border: 1px solid #c4b5fd;
+  color: #6d28d9;
+  background: #f5f3ff;
+  font-size: 13px;
+  font-weight: 600;
+}
+
+.magic-card-actions {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+  gap: 10px;
+  margin-top: 18px;
+}
+
+.action-button {
+  margin-top: 0;
+  min-height: 44px;
+  border: 1px solid #e5e7eb;
+  border-radius: 14px;
+  color: #64748b;
+  background: #fff;
+  display: grid;
+  place-items: center;
+  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
+}
+
+.action-button:hover {
+  transform: translateY(-1px);
+}
+
+.action-button.like:hover {
+  color: #16a34a;
+  border-color: #86efac;
+  background: #f0fdf4;
+}
+
+.action-button.dislike:hover {
+  color: #dc2626;
+  border-color: #fca5a5;
+  background: #fef2f2;
+}
+
+.action-button.save:hover {
+  color: #2563eb;
+  border-color: #93c5fd;
+  background: #eff6ff;
+}
+
+.action-button.share:hover {
+  color: #7c3aed;
+  border-color: #c4b5fd;
+  background: #f5f3ff;
+}
+
+.action-button svg {
+  width: 18px;
+  height: 18px;
+  fill: currentColor;
+}
+
+.feed-footer {
+  display: flex;
+  justify-content: center;
+  padding: 32px 0 8px;
+}
+
+.load-more-button {
+  color: #2563eb;
+  background: #fff;
+  border: 1px solid #93c5fd;
+  box-shadow: none;
+}
+
+.load-more-button:hover {
+  background: #dbeafe;
+}
+
+@media (max-width: 1024px) {
+  .feed-layout {
+    grid-template-columns: 1fr;
+    grid-template-rows: auto minmax(0, 1fr);
+  }
+
+  .feed-sidebar {
+    min-height: auto;
+    border-right: none;
+    border-bottom: 1px solid #e5e7eb;
+  }
+
+  .sidebar-profile {
+    position: static;
+  }
+}
+
+@media (max-width: 640px) {
+  .feed-topbar.with-filters {
+    padding: 10px 16px;
+  }
+
+  .feed-filter-nav {
+    flex-direction: column;
+    align-items: stretch;
+  }
+
+  .feed-filter-control {
+    justify-content: space-between;
+  }
+
+  .feed-content {
+    padding: 24px 16px 36px;
+  }
+
+  .magic-card-actions {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+  }
+}

frontend-BriefAI/src/pages/FeedPage.tsx

@@ -0,0 +1,37 @@
+import { useState } from 'react'
+import FeedContent from '../components/FeedContent'
+import FeedSidebar from '../components/FeedSidebar'
+import FeedTopbar from '../components/FeedTopbar'
+import './FeedPage.css'
+
+function FeedPage() {
+  const [sentimentFilter, setSentimentFilter] = useState<string | null>(null)
+  const [topicsFilter, setTopicsFilter] = useState<string | null>(null)
+
+  const handleSentimentChange = (sentiment: string) => {
+    setSentimentFilter(sentiment === 'All Sentiment' ? null : sentiment)
+  }
+
+  const handleTopicChange = (topic: string) => {
+    setTopicsFilter(topic === 'All Topics' ? null : topic)
+  }
+
+  return (
+    <div className="feed-layout" aria-label="Feed BriefAI">
+      <FeedSidebar activeItem="feed" />
+
+      <section className="feed-main">
+        <FeedTopbar
+          showFeedFilters
+          sentimentFilter={sentimentFilter}
+          onSentimentChange={handleSentimentChange}
+          topicsFilter={topicsFilter}
+          onTopicChange={handleTopicChange}
+        />
+        <FeedContent sentimentFilter={sentimentFilter} topicsFilter={topicsFilter} />
+      </section>
+    </div>
+  )
+}
+
+export default FeedPage

frontend-BriefAI/src/pages/HomePage.css

@@ -0,0 +1,373 @@
+.home-page {
+  min-height: 100vh;
+  width: 100%;
+  padding: 56px 24px 48px;
+  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
+}
+
+.home-container {
+  width: 100%;
+  margin: 0 auto;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+}
+
+.hero-section {
+  width: 100%;
+  max-width: 1024px;
+  text-align: center;
+}
+
+.hero-badge {
+  margin: 0 auto 20px;
+  width: fit-content;
+  display: inline-flex;
+  align-items: center;
+  gap: 10px;
+  padding: 10px 18px;
+  border-radius: 999px;
+  color: #ffffff;
+  font-weight: 600;
+  background: linear-gradient(135deg, #2563eb, #7c3aed);
+  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.28);
+}
+
+.hero-badge svg {
+  width: 18px;
+  height: 18px;
+  fill: currentColor;
+}
+
+.hero-section h1 {
+  margin: 0 0 24px;
+  font-size: clamp(2.5rem, 6vw, 3.75rem);
+  line-height: 1.05;
+  font-weight: 800;
+  background: linear-gradient(135deg, #2563eb, #7c3aed);
+  -webkit-background-clip: text;
+  background-clip: text;
+  color: transparent;
+}
+
+.hero-subtitle {
+  margin: 0 auto;
+  max-width: 960px;
+  font-size: clamp(1.06rem, 2.4vw, 1.25rem);
+  color: #475569;
+}
+
+.plan-grid {
+  margin-top: 36px;
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 24px;
+}
+
+.plan-card {
+  position: relative;
+  isolation: isolate;
+  overflow: hidden;
+  text-align: left;
+  border-radius: 16px;
+  border: 1px solid #e2e8f0;
+  background: linear-gradient(160deg, #ffffff 0%, #f8fafc 100%);
+  padding: 24px;
+  box-shadow: 0 20px 34px rgba(15, 23, 42, 0.09);
+  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
+}
+
+.plan-card::before {
+  content: '';
+  position: absolute;
+  inset: -1px;
+  border-radius: 16px;
+  background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(124, 58, 237, 0.2));
+  opacity: 0;
+  z-index: -2;
+  transition: opacity 0.25s ease;
+}
+
+.plan-card::after {
+  content: '';
+  position: absolute;
+  right: -42px;
+  top: -42px;
+  width: 120px;
+  height: 120px;
+  border-radius: 999px;
+  background: radial-gradient(circle, rgba(59, 130, 246, 0.2), transparent 70%);
+  z-index: -1;
+}
+
+.plan-card:hover {
+  transform: translateY(-6px);
+  border-color: #bfdbfe;
+  box-shadow: 0 28px 42px rgba(15, 23, 42, 0.15);
+}
+
+.plan-card:hover::before {
+  opacity: 1;
+}
+
+.free-plan {
+  border-color: #dbeafe;
+}
+
+.premium-plan {
+  border-color: #ddd6fe;
+  background: linear-gradient(160deg, #ffffff 0%, #f5f3ff 100%);
+  box-shadow: 0 22px 38px rgba(91, 33, 182, 0.16);
+}
+
+.plan-chip {
+  display: inline-flex;
+  align-items: center;
+  padding: 4px 12px;
+  border-radius: 999px;
+  font-size: 0.74rem;
+  text-transform: uppercase;
+  letter-spacing: 0.08em;
+  font-weight: 700;
+  color: #1e3a8a;
+  background: #dbeafe;
+}
+
+.plan-chip.premium {
+  color: #5b21b6;
+  background: #ede9fe;
+}
+
+.plan-card h2 {
+  margin: 14px 0 10px;
+  font-size: 1.5rem;
+}
+
+.plan-card p {
+  margin: 0;
+  color: #475569;
+}
+
+.plan-actions {
+  margin-top: 18px;
+  display: flex;
+  gap: 12px;
+}
+
+.plan-actions a {
+  text-decoration: none;
+}
+
+.plan-login-button,
+.plan-register-button {
+  min-width: 116px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 12px;
+  font-weight: 600;
+  padding: 11px 16px;
+  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
+}
+
+.plan-login-button {
+  color: #ffffff;
+  background: linear-gradient(135deg, #2563eb, #7c3aed);
+  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.28);
+}
+
+.plan-login-button:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 20px 36px rgba(37, 99, 235, 0.35);
+}
+
+.plan-register-button {
+  color: #334155;
+  border: 2px solid #e2e8f0;
+  background: rgba(255, 255, 255, 0.95);
+}
+
+.plan-register-button:hover {
+  border-color: #3b82f6;
+  transform: translateY(-2px);
+}
+
+.benefits-section {
+  width: 100%;
+  max-width: 1280px;
+  margin-top: 96px;
+  display: grid;
+  grid-template-columns: 1fr;
+  gap: 32px;
+}
+
+.benefit-card {
+  border: 1px solid #e2e8f0;
+  border-radius: 16px;
+  padding: 32px;
+  background: #ffffff;
+  box-shadow: 0 24px 36px rgba(15, 23, 42, 0.1);
+}
+
+.benefit-icon-wrap {
+  width: 56px;
+  height: 56px;
+  border-radius: 14px;
+  display: grid;
+  place-items: center;
+}
+
+.benefit-icon-wrap svg {
+  width: 28px;
+  height: 28px;
+  fill: none;
+  stroke: currentColor;
+  stroke-width: 2;
+  stroke-linecap: round;
+  stroke-linejoin: round;
+}
+
+.benefit-icon-wrap.blue {
+  background: #dbeafe;
+  color: #1e3a8a;
+}
+
+.benefit-icon-wrap.violet {
+  background: #ede9fe;
+  color: #5b21b6;
+}
+
+.benefit-icon-wrap.green {
+  background: #dcfce7;
+  color: #166534;
+}
+
+.benefit-card h3 {
+  margin: 18px 0 12px;
+  font-size: 1.5rem;
+  font-weight: 700;
+}
+
+.benefit-card p {
+  margin: 0;
+  color: #475569;
+}
+
+.preview-section {
+  width: 100%;
+  max-width: 1024px;
+  margin-top: 96px;
+}
+
+.preview-section h2 {
+  margin: 0 0 32px;
+  text-align: center;
+  font-size: clamp(1.85rem, 4vw, 2rem);
+  font-weight: 700;
+}
+
+.preview-shell {
+  border-radius: 24px;
+  padding: 48px;
+  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
+}
+
+.preview-card {
+  border: 1px solid #e2e8f0;
+  border-radius: 20px;
+  background: #ffffff;
+  box-shadow: 0 20px 36px rgba(15, 23, 42, 0.11);
+  padding: 24px;
+}
+
+.preview-card-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  font-size: 0.9rem;
+  color: #64748b;
+}
+
+.sentiment-badge {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 999px;
+  padding: 6px 10px;
+  font-size: 0.75rem;
+  font-weight: 700;
+  color: #166534;
+  background: #dcfce7;
+}
+
+.preview-card h3 {
+  margin: 16px 0 12px;
+  font-size: 1.25rem;
+  font-weight: 700;
+}
+
+.preview-card p {
+  margin: 0 0 16px;
+  color: #475569;
+}
+
+.preview-tags {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+}
+
+.tag-chip {
+  border-radius: 999px;
+  padding: 6px 12px;
+  font-size: 0.8rem;
+  font-weight: 600;
+}
+
+.tag-chip.ai {
+  color: #1d4ed8;
+  background: #dbeafe;
+}
+
+.tag-chip.openai {
+  color: #6d28d9;
+  background: #ede9fe;
+}
+
+.tag-chip.safety {
+  color: #475569;
+  background: #e2e8f0;
+}
+
+.preview-actions {
+  margin-top: 16px;
+  display: flex;
+  flex-wrap: wrap;
+  gap: 16px;
+  color: #64748b;
+  font-size: 0.92rem;
+}
+
+.home-footer {
+  margin-top: 96px;
+  text-align: center;
+  font-size: 0.875rem;
+  color: #64748b;
+}
+
+@media (min-width: 900px) {
+  .benefits-section {
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+  }
+}
+
+@media (max-width: 899px) {
+  .plan-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .preview-shell {
+    padding: 24px;
+  }
+}

frontend-BriefAI/src/pages/HomePage.tsx

@@ -0,0 +1,163 @@
+import { Link } from 'react-router-dom'
+import './HomePage.css'
+
+function HomePage() {
+  return (
+    <section className="home-page" aria-label="Home pubblica BriefAI">
+      <div className="home-container">
+        {/* Hero principale: comunica il valore del prodotto in pochi secondi. */}
+        <header className="hero-section">
+          <p className="hero-badge">
+            <SparklesIcon />
+            <span>La tua intelligence sulle notizie potenziata dall'IA</span>
+          </p>
+
+          <h1>Ottieni notizie pronte all'azione in 30 secondi</h1>
+
+          <p className="hero-subtitle">
+            BriefAI trasforma il sovraccarico informativo in intelligence operativa. Riassunti
+            generati dall'IA, analisi del sentiment e feed personalizzati per founder, analisti e
+            appassionati di tecnologia.
+          </p>
+
+          <div className="plan-grid" aria-label="Piani disponibili">
+            <article className="plan-card free-plan" aria-label="Piano gratuito">
+              <span className="plan-chip">Free</span>
+              <h2>Piano Gratuito</h2>
+              <p>
+                Inizia con il feed intelligente di base, riepiloghi rapidi e monitoraggio leggero
+                dei trend principali.
+              </p>
+              <div className="plan-actions">
+                <Link to="/login" className="plan-login-button">
+                  Login
+                </Link>
+                <Link to="/onboarding" className="plan-register-button">
+                  Registrati
+                </Link>
+              </div>
+            </article>
+
+            <article className="plan-card premium-plan" aria-label="Piano premium">
+              <span className="plan-chip premium">Premium</span>
+              <h2>Piano a Pagamento</h2>
+              <p>
+                Sblocca analisi avanzate, alert strategici, maggiore profondita di sentiment e
+                tracciamento esteso di keyword e competitor.
+              </p>
+              <div className="plan-actions">
+                <Link to="/login" className="plan-login-button">
+                  Login
+                </Link>
+                <Link to="/onboarding" className="plan-register-button">
+                  Registrati
+                </Link>
+              </div>
+            </article>
+          </div>
+        </header>
+
+        {/* Sezione benefici: tre card per descrivere le funzionalita principali. */}
+        <section className="benefits-section" aria-label="Benefici principali">
+          <article className="benefit-card">
+            <div className="benefit-icon-wrap blue">
+              <SparklesIcon />
+            </div>
+            <h3>Feed Personalizzato</h3>
+            <p>
+              L'IA impara i tuoi interessi e ti mostra solo cio che conta davvero. Monitora
+              competitor, brand e temi emergenti in un unico flusso.
+            </p>
+          </article>
+
+          <article className="benefit-card">
+            <div className="benefit-icon-wrap violet">
+              <ZapIcon />
+            </div>
+            <h3>Riassunti IA</h3>
+            <p>
+              Ogni articolo compresso in massimo 50 parole. Hai l'essenza senza rumore e recuperi
+              ore preziose ogni giorno.
+            </p>
+          </article>
+
+          <article className="benefit-card">
+            <div className="benefit-icon-wrap green">
+              <TrendingUpIcon />
+            </div>
+            <h3>Insight di Sentiment</h3>
+            <p>
+              Analisi istantanea del sentiment su ogni notizia. Comprendi rapidamente percezione di
+              mercato e reputazione del brand.
+            </p>
+          </article>
+        </section>
+
+        {/* Anteprima prodotto: simula una card reale del feed per mostrare l'output. */}
+        <section className="preview-section" aria-label="Anteprima applicazione">
+          <h2>Guarda BriefAI in azione</h2>
+
+          <div className="preview-shell">
+            <article className="preview-card" aria-label="Demo articolo IA">
+              <header className="preview-card-header">
+                <span>TechCrunch • 2 ore fa</span>
+                <span className="sentiment-badge">Positivo</span>
+              </header>
+
+              <h3>OpenAI annuncia un importante passo avanti nella sicurezza dell'IA</h3>
+
+              <p>
+                OpenAI introduce un nuovo framework di sicurezza che riduce del 60% gli output
+                dannosi. I leader del settore elogiano l'approccio. Potrebbe diventare uno standard
+                per i laboratori di IA.
+              </p>
+
+              <div className="preview-tags" aria-label="Tag articolo">
+                <span className="tag-chip ai">IA</span>
+                <span className="tag-chip openai">OpenAI</span>
+                <span className="tag-chip safety">Sicurezza</span>
+              </div>
+
+              <footer className="preview-actions" aria-label="Azioni articolo">
+                <span>👍 Mi piace</span>
+                <span>💾 Salva</span>
+                <span>🔗 Condividi</span>
+              </footer>
+            </article>
+          </div>
+        </section>
+
+        <footer className="home-footer">BriefAI © 2026 - Strumento di Decision Intelligence</footer>
+      </div>
+    </section>
+  )
+}
+
+function SparklesIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <path d="M12 3l1.6 4.4L18 9l-4.4 1.6L12 15l-1.6-4.4L6 9l4.4-1.6L12 3Z" />
+      <path d="M19 14l.8 2.2L22 17l-2.2.8L19 20l-.8-2.2L16 17l2.2-.8L19 14Z" />
+      <path d="M5 14l.8 2.2L8 17l-2.2.8L5 20l-.8-2.2L2 17l2.2-.8L5 14Z" />
+    </svg>
+  )
+}
+
+function ZapIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <path d="M13 2 4 14h6l-1 8 9-12h-6l1-8Z" />
+    </svg>
+  )
+}
+
+function TrendingUpIcon() {
+  return (
+    <svg viewBox="0 0 24 24" aria-hidden="true">
+      <path d="M3 17l6-6 4 4 8-8" />
+      <path d="M14 7h7v7" />
+    </svg>
+  )
+}
+
+export default HomePage

frontend-BriefAI/src/pages/LoginPage.css

@@ -0,0 +1,112 @@
+.app-shell > .auth-panel {
+  flex: 0 1 460px;
+  margin: auto;
+}
+
+.auth-panel,
+.home-panel {
+  width: min(100%, 460px);
+  background: var(--panel-bg);
+  border: 1px solid var(--panel-border);
+  border-radius: 18px;
+  padding: 28px;
+  box-shadow: var(--panel-shadow);
+  backdrop-filter: blur(2px);
+}
+
+.auth-panel .eyebrow {
+  margin: 0;
+  font-size: 13px;
+  letter-spacing: 0.12em;
+  text-transform: uppercase;
+  color: var(--muted);
+}
+
+.auth-panel h1 {
+  margin: 8px 0 8px;
+  font-size: clamp(36px, 4vw, 44px);
+  line-height: 1;
+}
+
+.auth-panel .subtitle {
+  margin-bottom: 24px;
+}
+
+.top-link-row {
+  margin: -8px 0 16px;
+  text-align: right;
+}
+
+.login-form {
+  display: grid;
+  gap: 12px;
+}
+
+.login-form label {
+  font-size: 14px;
+  color: var(--muted);
+}
+
+.login-form input,
+.login-form button {
+  border-radius: 12px;
+  border: 1px solid var(--panel-border);
+  font: inherit;
+}
+
+.login-form input {
+  background: var(--input-bg);
+  color: var(--text);
+  padding: 12px 14px;
+}
+
+.login-form input:focus-visible,
+.login-form button:focus-visible {
+  outline: 2px solid var(--focus);
+  outline-offset: 2px;
+}
+
+.login-form button {
+  margin-top: 8px;
+  cursor: pointer;
+  padding: 12px 14px;
+  color: #fff;
+  border-color: transparent;
+  background: linear-gradient(120deg, var(--accent-a), var(--accent-b));
+}
+
+.checkbox-row {
+  display: flex;
+  align-items: flex-start;
+  gap: 10px;
+  margin-top: 6px;
+  color: var(--text);
+}
+
+.checkbox-row input {
+  margin-top: 3px;
+  width: 16px;
+  height: 16px;
+}
+
+.checkbox-row span {
+  font-size: 14px;
+}
+
+.error {
+  margin: 8px 0 0;
+  color: var(--danger);
+  font-size: 14px;
+}
+
+.auth-footer {
+  margin-top: 16px;
+  font-size: 14px;
+  color: var(--muted);
+}
+
+.text-link {
+  color: var(--accent-b);
+  text-decoration: underline;
+  text-underline-offset: 2px;
+}

frontend-BriefAI/src/pages/LoginPage.tsx

@@ -0,0 +1,85 @@
+import type { FormEvent } from 'react'
+import { useState } from 'react'
+import { Link } from 'react-router-dom'
+import { useNavigate } from 'react-router-dom'
+import { login } from '../services/authService'
+import './LoginPage.css'
+
+type LoginPageProps = {
+  onLoginSuccess?: () => void
+}
+
+function LoginPage({ onLoginSuccess }: LoginPageProps) {
+  const navigate = useNavigate()
+  const [email, setEmail] = useState('')
+  const [password, setPassword] = useState('')
+  const [error, setError] = useState('')
+
+  const handleSubmit = async (event: FormEvent<HTMLFormElement>) => {
+    event.preventDefault()
+    try {
+      await login(email, password)
+      setError('')
+      if (typeof onLoginSuccess === 'function') onLoginSuccess()
+      navigate('/feed')
+    } catch (err: any) {
+      setError('Credenziali non valide')
+    }
+  }
+
+  return (
+    <section className="auth-panel" aria-label="Accesso BriefAI">
+      <p className="eyebrow">BriefAI</p>
+      <h1>Accedi</h1>
+      <p className="subtitle">Inserisci le tue credenziali per iniziare la configurazione.</p>
+
+      <form className="login-form" onSubmit={handleSubmit}>
+        <label htmlFor="email">Email</label>
+        <input
+          id="email"
+          type="email"
+          value={email}
+          onChange={(event) => setEmail(event.target.value)}
+          placeholder="you@example.com"
+          autoComplete="username"
+          required
+        />
+
+        <label htmlFor="password">Password</label>
+        <input
+          id="password"
+          type="password"
+          value={password}
+          onChange={(event) => setPassword(event.target.value)}
+          placeholder="Inserisci la password"
+          autoComplete="current-password"
+          required
+        />
+
+        <p className="top-link-row">
+            <a className="text-link" href="#" aria-label="Recupera password">
+          Ti sei dimenticato la password?
+        </a>
+      </p>
+        
+        <button type="submit">Entra</button>
+
+        {error && (
+          <p className="error" role="alert" aria-live="polite">
+            {error}
+          </p>
+        )}
+      </form>
+
+      <p className="auth-footer">
+        Non hai un account? <Link className="text-link" to="/onboarding">Registrati</Link>
+      </p>
+
+      <p className="auth-footer">
+        Vuoi tornare alla pagina iniziale? <Link className="text-link" to="/">Home</Link>
+      </p>
+    </section>
+  )
+}
+
+export default LoginPage

frontend-BriefAI/src/pages/OnboardingPage.css

@@ -0,0 +1,210 @@
+.app-shell > .onboarding-shell {
+  overflow-y: auto;
+}
+
+.onboarding-shell {
+  width: min(100%, 920px);
+  height: 100%;
+  padding: 82px 16px 24px;
+  margin: 0 auto;
+}
+
+.progress-wrapper {
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  background: rgba(247, 251, 255, 0.95);
+  backdrop-filter: blur(6px);
+  padding: 0 16px 8px;
+  z-index: 10;
+}
+
+.progress-track {
+  height: 2px;
+  background: #e2e8f0;
+}
+
+.progress-fill {
+  height: 100%;
+  background: linear-gradient(90deg, #2563eb, #7c3aed);
+  transition: width 280ms ease;
+}
+
+.progress-meta {
+  margin: 8px auto 0;
+  width: min(100%, 920px);
+  display: flex;
+  justify-content: space-between;
+  font-size: 13px;
+  color: var(--muted);
+}
+
+.onboarding-card {
+  max-width: 780px;
+  margin: 0 auto;
+  background: #fff;
+  border: 1px solid var(--panel-border);
+  border-radius: 18px;
+  padding: 28px;
+  box-shadow: var(--panel-shadow);
+}
+
+.onboarding-card h1 {
+  margin: 8px 0 8px;
+  font-size: clamp(36px, 4vw, 44px);
+  line-height: 1;
+}
+
+.onboarding-card .subtitle {
+  margin-bottom: 24px;
+}
+
+.topics-grid {
+  margin-top: 16px;
+  display: grid;
+  gap: 12px;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+}
+
+.topic-card {
+  position: relative;
+  border: 1px solid #dce7f0;
+  background: #fff;
+  border-radius: 14px;
+  padding: 18px 12px;
+  color: var(--text);
+  display: grid;
+  place-items: center;
+  gap: 8px;
+  cursor: pointer;
+  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
+}
+
+.topic-card:hover {
+  transform: scale(1.05);
+}
+
+.topic-card.selected {
+  border-color: #2563eb;
+  background: #eff6ff;
+}
+
+.topic-emoji {
+  font-size: 2.25rem;
+  line-height: 1;
+}
+
+.topic-check {
+  position: absolute;
+  right: 10px;
+  bottom: 8px;
+  color: #2563eb;
+  font-weight: 700;
+}
+
+.onboarding-action {
+  margin-top: 18px;
+  width: 100%;
+  border: none;
+  border-radius: 12px;
+  padding: 12px 14px;
+  color: #fff;
+  background: linear-gradient(90deg, #2563eb, #7c3aed);
+  cursor: pointer;
+}
+
+.onboarding-action:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
+.keyword-input {
+  width: 100%;
+  border-radius: 12px;
+  border: 1px solid var(--panel-border);
+  padding: 12px 14px;
+  background: #fff;
+  color: var(--text);
+  font: inherit;
+}
+
+.keyword-input:focus-visible {
+  outline: none;
+  border-color: #2563eb;
+  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
+}
+
+.chip-section {
+  margin-top: 18px;
+}
+
+.chip-section h2 {
+  margin: 0 0 8px;
+  font-size: 16px;
+}
+
+.chip-wrap {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
+
+.suggestion-chip {
+  margin-top: 0;
+  border: 1px solid #d5dbe4;
+  background: #e5e7eb;
+  color: #1f2937;
+  border-radius: 999px;
+  padding: 8px 12px;
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.suggestion-chip:hover {
+  background: #dbeafe;
+  border-color: #93c5fd;
+}
+
+.tracking-chip {
+  background: #2563eb;
+  color: #fff;
+  border-radius: 999px;
+  padding: 8px 10px;
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.remove-chip {
+  margin-top: 0;
+  border: none;
+  border-radius: 999px;
+  width: 20px;
+  height: 20px;
+  padding: 0;
+  color: #2563eb;
+  background: #fff;
+  line-height: 1;
+}
+
+.step-actions {
+  margin-top: 20px;
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 10px;
+}
+
+.secondary-action {
+  margin-top: 18px;
+  border: 1px solid #d1d5db;
+  background: #e5e7eb;
+  color: #374151;
+}
+
+@media (min-width: 900px) {
+  .topics-grid {
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+  }
+}

frontend-BriefAI/src/pages/OnboardingPage.tsx

@@ -0,0 +1,206 @@
+import { useMemo, useState } from 'react'
+import { useNavigate } from 'react-router-dom'
+import './OnboardingPage.css'
+
+const TOPIC_OPTIONS = [
+  { label: 'Intelligenza Artificiale', emoji: '🤖' },
+  { label: 'Cybersecurity', emoji: '🔒' },
+  { label: 'Business & Finanza', emoji: '💼' },
+  { label: 'Politica & Geopolitica', emoji: '⚖️' },
+  { label: 'Startup & Innovazione', emoji: '🚀' },
+  { label: 'Software & Sviluppo', emoji: '💻' },
+  { label: 'Scienza & Ricerca', emoji: '🔬' },
+  { label: 'Energia & Ambiente', emoji: '🌱' },
+  { label: 'Economia & Mercati', emoji: '📈' },
+  { label: 'Social Media & Cultura', emoji: '📱' },
+  { label: 'Salute & Medicina', emoji: '🏥' },
+  { label: 'Trasporti & Mobilità', emoji: '🚗' },
+] as const
+
+const SUGGESTIONS = ['OpenAI', 'Google AI', 'Anthropic', 'Tesla', 'SpaceX'] as const
+
+function OnboardingPage() {
+  const navigate = useNavigate()
+  // Step corrente del wizard: 1 per categorie, 2 per tracking keyword.
+  const [step, setStep] = useState<1 | 2>(1)
+  // Stato accumulato dello step 1 (interessi selezionati).
+  const [selectedTopics, setSelectedTopics] = useState<string[]>([])
+  // Stato accumulato dello step 2 (keyword da monitorare).
+  const [keywords, setKeywords] = useState<string[]>([])
+  const [keywordInput, setKeywordInput] = useState('')
+
+  const progressPercent = step === 1 ? 50 : 100
+
+  // Evita di mostrare nei suggerimenti keyword gia presenti nella lista personale.
+  const suggestionPool = useMemo(
+    () => SUGGESTIONS.filter((item) => !keywords.includes(item)),
+    [keywords],
+  )
+
+  // Toggle atomico della card: se gia selezionata la rimuove, altrimenti la aggiunge.
+  const toggleTopic = (topic: string) => {
+    setSelectedTopics((prevTopics) =>
+      prevTopics.includes(topic)
+        ? prevTopics.filter((savedTopic) => savedTopic !== topic)
+        : [...prevTopics, topic],
+    )
+  }
+
+  const addKeyword = (rawValue: string) => {
+    const cleanedKeyword = rawValue.trim()
+
+    // Normalizzazione semplice: ignora vuoti e duplicati per mantenere la lista consistente.
+    if (!cleanedKeyword || keywords.includes(cleanedKeyword)) {
+      return
+    }
+
+    setKeywords((prevKeywords) => [...prevKeywords, cleanedKeyword])
+    setKeywordInput('')
+  }
+
+  const removeKeyword = (keywordToRemove: string) => {
+    setKeywords((prevKeywords) =>
+      prevKeywords.filter((savedKeyword) => savedKeyword !== keywordToRemove),
+    )
+  }
+
+  const goToNextStep = () => {
+    // Primo click su Continua: passa allo step 2 senza fare submit globale.
+    if (step === 1) {
+      setStep(2)
+      return
+    }
+
+    // Salvataggio demo in localStorage: simula la persistenza prima del redirect
+    // verso il form di registrazione. Nessuna chiamata al backend qui.
+    localStorage.setItem(
+      'briefai-onboarding',
+      JSON.stringify({ selectedTopics, keywords }),
+    )
+    // Dopo il wizard, mostra il form di registrazione (pre-auth flow).
+    navigate('/register')
+  }
+
+  return (
+    <section className="onboarding-shell" aria-label="Configurazione iniziale BriefAI">
+      <header className="progress-wrapper" aria-label="Progresso onboarding">
+        <div className="progress-track">
+          <div className="progress-fill" style={{ width: `${progressPercent}%` }}></div>
+        </div>
+        <div className="progress-meta">
+          <span>{`Passo ${step} di 2`}</span>
+          <span>{`${progressPercent}%`}</span>
+        </div>
+      </header>
+
+      {step === 1 ? (
+        <article className="onboarding-card">
+          <h1>A cosa sei interessato?</h1>
+          <p className="subtitle">Seleziona tutte le categorie che ti interessano</p>
+
+          <div className="topics-grid">
+            {TOPIC_OPTIONS.map((topic) => {
+              const isSelected = selectedTopics.includes(topic.label)
+
+              return (
+                <button
+                  key={topic.label}
+                  type="button"
+                  className={`topic-card ${isSelected ? 'selected' : ''}`}
+                  onClick={() => toggleTopic(topic.label)}
+                >
+                  <span className="topic-emoji" aria-hidden="true">
+                    {topic.emoji}
+                  </span>
+                  <span>{topic.label}</span>
+                  {isSelected && (
+                    <span className="topic-check" aria-hidden="true">
+                      ✓
+                    </span>
+                  )}
+                </button>
+              )
+            })}
+          </div>
+
+          <button
+            type="button"
+            className="onboarding-action"
+            onClick={goToNextStep}
+            disabled={selectedTopics.length === 0}
+          >
+            Continua
+          </button>
+        </article>
+      ) : (
+        <article className="onboarding-card">
+          <h1>Tieni traccia di argomenti specifici</h1>
+          <p className="subtitle">Aggiungi concorrenti, marchi o parole chiave da monitorare.</p>
+
+          <input
+            type="text"
+            className="keyword-input"
+            placeholder="Inserisci concorrenti, marchi, argomenti..."
+            value={keywordInput}
+            onChange={(event) => setKeywordInput(event.target.value)}
+            onKeyDown={(event) => {
+              if (event.key === 'Enter') {
+                event.preventDefault()
+                addKeyword(keywordInput)
+              }
+            }}
+          />
+
+          <section className="chip-section" aria-label="Suggerimenti">
+            <h2>Suggerimenti</h2>
+            <div className="chip-wrap">
+              {suggestionPool.map((item) => (
+                <button
+                  key={item}
+                  type="button"
+                  className="suggestion-chip"
+                  onClick={() => addKeyword(item)}
+                >
+                  <span aria-hidden="true">+</span>
+                  {item}
+                </button>
+              ))}
+            </div>
+          </section>
+
+          {keywords.length > 0 && (
+            <section className="chip-section" aria-label="La tua lista di monitoraggio">
+              <h2>La tua lista di monitoraggio</h2>
+              <div className="chip-wrap">
+                {keywords.map((keyword) => (
+                  <span key={keyword} className="tracking-chip">
+                    {keyword}
+                    <button
+                      type="button"
+                      className="remove-chip"
+                      onClick={() => removeKeyword(keyword)}
+                      aria-label={`Rimuovi ${keyword}`}
+                    >
+                      x
+                    </button>
+                  </span>
+                ))}
+              </div>
+            </section>
+          )}
+
+          <div className="step-actions">
+            <button type="button" className="secondary-action" onClick={() => setStep(1)}>
+              Indietro
+            </button>
+            <button type="button" className="onboarding-action" onClick={goToNextStep}>
+              Continua
+            </button>
+          </div>
+        </article>
+      )}
+    </section>
+  )
+}
+
+export default OnboardingPage

frontend-BriefAI/src/pages/RegisterPage.css

@@ -0,0 +1 @@
+@import './LoginPage.css';

frontend-BriefAI/src/pages/RegisterPage.tsx

@@ -0,0 +1,139 @@
+import type { FormEvent } from 'react'
+import { useState } from 'react'
+import { Link, useNavigate } from 'react-router-dom'
+import { register } from '../services/authService'
+import './RegisterPage.css'
+
+type RegisterPageProps = {
+  onRegisterSuccess?: () => void
+}
+
+function RegisterPage({ onRegisterSuccess }: RegisterPageProps) {
+  const navigate = useNavigate()
+  const [username, setUsername] = useState('')
+  const [email, setEmail] = useState('')
+  const [newPassword, setNewPassword] = useState('')
+  const [acceptedTerms, setAcceptedTerms] = useState(false)
+  const [error, setError] = useState('')
+
+  const handleSubmit = async (event: FormEvent<HTMLFormElement>) => {
+    event.preventDefault()
+
+    // Validazione esplicita: se i termini non sono accettati, blocca l'invio.
+    if (!acceptedTerms) {
+      setError("Devi accettare i Termini di servizio e l'Informativa sulla privacy.")
+      return
+    }
+
+    // Recupera preferenze accumulate durante l'onboarding (se presenti)
+    let macroTopics: string[] | undefined = undefined
+    let keywords: string[] | undefined = undefined
+    try {
+      const raw = localStorage.getItem('briefai-onboarding')
+      if (raw) {
+        const parsed = JSON.parse(raw)
+        macroTopics = parsed.selectedTopics || undefined
+        keywords = parsed.keywords || undefined
+      }
+    } catch (e) {
+      // ignore parsing errors
+    }
+
+    try {
+      await register({
+        email,
+        password: newPassword,
+        username,
+        preferences: {
+          macroTopics,
+          keywords,
+        },
+      })
+      setError('')
+      // Pulizia locale
+      setUsername('')
+      setEmail('')
+      setNewPassword('')
+      setAcceptedTerms(false)
+      if (typeof onRegisterSuccess === 'function') onRegisterSuccess()
+      // Dopo la registrazione il token è salvato dal servizio; redirige al feed
+      navigate('/feed')
+    } catch (err: any) {
+      // Estrae il messaggio d'errore lanciato dal backend (`throw await res.json()`),
+      // oppure mostra un fallback se l'API non risponde correttamente.
+      const errorMessage = err?.error || err?.message || 'Errore nella registrazione'
+      setError(errorMessage)
+    }
+  }
+
+  return (
+    <section className="auth-panel" aria-label="Registrazione BriefAI">
+      <p className="eyebrow">BriefAI</p>
+      <h1>Registrati</h1>
+      <p className="subtitle">Crea il tuo account per iniziare.</p>
+
+      <form className="login-form" onSubmit={handleSubmit}>
+        <label htmlFor="register-username">Utente</label>
+        <input
+          id="register-username"
+          type="text"
+          value={username}
+          onChange={(event) => setUsername(event.target.value)}
+          placeholder="Il tuo username"
+          autoComplete="username"
+          required
+        />
+
+        <label htmlFor="register-email">Email</label>
+        <input
+          id="register-email"
+          type="email"
+          value={email}
+          onChange={(event) => setEmail(event.target.value)}
+          placeholder="nome@email.com"
+          autoComplete="email"
+          required
+        />
+
+        <label htmlFor="register-password">Nuova password</label>
+        <input
+          id="register-password"
+          type="password"
+          value={newPassword}
+          onChange={(event) => setNewPassword(event.target.value)}
+          placeholder="Nuova password"
+          autoComplete="new-password"
+          required
+        />
+
+        <label className="checkbox-row" htmlFor="register-terms">
+          <input
+            id="register-terms"
+            type="checkbox"
+            checked={acceptedTerms}
+            onChange={(event) => setAcceptedTerms(event.target.checked)}
+          />
+          <span>Accetto i Termini di servizio e l'Informativa sulla privacy</span>
+        </label>
+
+        <button type="submit">Crea account</button>
+
+        {error && (
+          <p className="error" role="alert" aria-live="polite">
+            {error}
+          </p>
+        )}
+      </form>
+
+      <p className="auth-footer">
+        Se hai gia un account fai <Link className="text-link" to="/login">accesso</Link>
+      </p>
+
+      <p className="auth-footer">
+        Torna alla <Link className="text-link" to="/">home</Link>
+      </p>
+    </section>
+  )
+}
+
+export default RegisterPage

frontend-BriefAI/src/pages/SettingsPage.css

@@ -0,0 +1,309 @@
+.settings-layout {
+  background: #f8fafc;
+}
+
+.settings-main {
+  background: #f8fafc;
+}
+
+.settings-content {
+  padding-top: 0;
+}
+
+.settings-header h1 {
+  margin: 0 0 6px;
+  font-size: clamp(34px, 4vw, 48px);
+}
+
+.settings-header p {
+  margin: 0;
+  color: #64748b;
+}
+
+.settings-tabs {
+  display: flex;
+  gap: 24px;
+  margin: 24px 0 20px;
+  border-bottom: 1px solid #e5e7eb;
+}
+
+.settings-tab {
+  margin-top: 0;
+  padding: 12px 0;
+  border: none;
+  border-bottom: 2px solid transparent;
+  color: #64748b;
+  background: transparent;
+  border-radius: 0;
+  transition: color 0.2s ease, border-color 0.2s ease;
+}
+
+.settings-tab:hover {
+  color: #111827;
+}
+
+.settings-tab.active {
+  color: #2563eb;
+  border-bottom-color: #2563eb;
+}
+
+.settings-stack {
+  display: grid;
+  gap: 20px;
+}
+
+.settings-card {
+  background: #fff;
+  border: 1px solid #e5e7eb;
+  border-radius: 20px;
+  padding: 24px;
+}
+
+.settings-section-header h2 {
+  margin: 0 0 6px;
+  font-size: 20px;
+}
+
+.settings-section-header p {
+  margin: 0;
+  color: #64748b;
+}
+
+.category-grid {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 12px;
+  margin-top: 20px;
+}
+
+.category-tile {
+  position: relative;
+  min-height: 108px;
+  margin-top: 0;
+  padding: 16px 12px;
+  display: grid;
+  place-items: center;
+  gap: 8px;
+  border: 1px solid #d1d5db;
+  border-radius: 16px;
+  background: #fff;
+  color: #111827;
+  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
+}
+
+.category-tile:hover {
+  transform: scale(1.05);
+}
+
+.category-tile.selected {
+  border-color: #2563eb;
+  background: #eff6ff;
+}
+
+.category-emoji {
+  font-size: 1.875rem;
+  line-height: 1;
+}
+
+.category-label {
+  font-size: 13px;
+  font-weight: 700;
+}
+
+.settings-action-row {
+  display: flex;
+  justify-content: flex-end;
+  margin-top: 16px;
+}
+
+.settings-save-button {
+  margin-top: 0;
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  background: linear-gradient(90deg, #2563eb, #1d4ed8);
+  transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
+}
+
+.settings-save-button:hover {
+  transform: translateY(-1px);
+}
+
+.settings-save-button svg {
+  width: 16px;
+  height: 16px;
+  fill: currentColor;
+}
+
+.keyword-toolbar {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
+  gap: 10px;
+  margin-top: 20px;
+}
+
+.settings-keyword-input {
+  width: 100%;
+}
+
+.settings-keyword-input:focus-visible {
+  outline: none;
+  border-color: #2563eb;
+  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
+}
+
+.keyword-add-button {
+  margin-top: 0;
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  background: #2563eb;
+  transition: transform 0.2s ease, background 0.2s ease;
+}
+
+.keyword-add-button:hover {
+  transform: translateY(-1px);
+}
+
+.suggestion-row {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  margin-top: 16px;
+}
+
+.tracked-chip-wrap {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  margin-top: 16px;
+}
+
+.tracked-chip {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 12px;
+  border-radius: 999px;
+  background: #dbeafe;
+  color: #1d4ed8;
+  font-size: 13px;
+  font-weight: 600;
+}
+
+.tracked-chip-remove {
+  width: 18px;
+  height: 18px;
+  margin-top: 0;
+  padding: 0;
+  border: none;
+  border-radius: 999px;
+  color: #1d4ed8;
+  background: #fff;
+  line-height: 1;
+}
+
+.profile-info-grid {
+  display: grid;
+  gap: 16px;
+  margin-top: 20px;
+}
+
+.profile-info-label {
+  display: block;
+  margin-bottom: 6px;
+  font-size: 13px;
+  color: #64748b;
+}
+
+.profile-info-value {
+  margin: 0;
+  font-weight: 600;
+  color: #111827;
+}
+
+.subscription-box {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16px;
+  margin-top: 20px;
+  padding: 20px;
+  border-radius: 18px;
+  background: #f8fafc;
+}
+
+.subscription-copy {
+  display: grid;
+  gap: 8px;
+}
+
+.plan-badge {
+  width: fit-content;
+  padding: 6px 10px;
+  border-radius: 999px;
+  font-size: 12px;
+  font-weight: 700;
+}
+
+.plan-badge.free {
+  color: #334155;
+  background: #e2e8f0;
+}
+
+.plan-badge.pro {
+  color: #fff;
+  background: linear-gradient(90deg, #2563eb, #7c3aed);
+}
+
+.subscription-copy p {
+  margin: 0;
+  color: #475569;
+}
+
+.subscription-upgrade-button {
+  margin-top: 0;
+  background: linear-gradient(90deg, #2563eb, #7c3aed);
+}
+
+.subscription-link-button {
+  margin-top: 0;
+  padding: 0;
+  border: none;
+  color: #2563eb;
+  background: transparent;
+  text-decoration: underline;
+  text-underline-offset: 2px;
+}
+
+@media (min-width: 900px) {
+  .category-grid {
+    grid-template-columns: repeat(4, minmax(0, 1fr));
+  }
+}
+
+@media (max-width: 640px) {
+  .settings-content {
+    padding: 24px 16px 36px;
+  }
+
+  .settings-tabs {
+    gap: 18px;
+  }
+
+  .keyword-toolbar,
+  .subscription-box {
+    grid-template-columns: 1fr;
+    display: grid;
+  }
+
+  .settings-action-row {
+    justify-content: stretch;
+  }
+
+  .settings-save-button,
+  .keyword-add-button {
+    width: 100%;
+    justify-content: center;
+  }
+}

frontend-BriefAI/src/pages/SettingsPage.tsx

@@ -0,0 +1,198 @@
+import { useState, useEffect } from 'react'
+import FeedSidebar from '../components/FeedSidebar'
+import FeedTopbar from '../components/FeedTopbar'
+import AccountSettings, { type SubscriptionState } from '../components/AccountSettings'
+import InterestPreferences from '../components/InterestPreferences'
+import SettingsTabs, { type SettingsTab } from '../components/SettingsTabs'
+import TrackedKeywords from '../components/TrackedKeywords'
+import './FeedPage.css'
+import './SettingsPage.css'
+import { fetchProfile, updateProfile } from '../services/apiService'
+
+type SettingsSnapshot = {
+  selectedMacroTopics: string[]
+  keywords: string[]
+  subscriptionState: SubscriptionState
+}
+
+const STORAGE_KEY = 'briefai-settings'
+const ONBOARDING_KEY = 'briefai-onboarding'
+const DEFAULT_MACRO_TOPICS = ['Scienza & Ricerca']
+
+function readInitialSettings(): SettingsSnapshot {
+  if (typeof window === 'undefined') {
+    return {
+      selectedMacroTopics: DEFAULT_MACRO_TOPICS,
+      keywords: [],
+      subscriptionState: 'free',
+    }
+  }
+
+  const onboardingSnapshot = readJSON<{ selectedTopics?: string[]; keywords?: string[] }>(
+    ONBOARDING_KEY,
+  )
+  const storedSnapshot = readJSON<Partial<SettingsSnapshot>>(STORAGE_KEY)
+
+  return {
+    selectedMacroTopics:
+      storedSnapshot?.selectedMacroTopics ?? onboardingSnapshot?.selectedTopics ?? DEFAULT_MACRO_TOPICS,
+    keywords: storedSnapshot?.keywords ?? onboardingSnapshot?.keywords ?? [],
+    subscriptionState: storedSnapshot?.subscriptionState ?? 'free',
+  }
+}
+
+function readJSON<T>(storageKey: string): T | undefined {
+  try {
+    const rawValue = window.localStorage.getItem(storageKey)
+
+    if (!rawValue) {
+      return undefined
+    }
+
+    return JSON.parse(rawValue) as T
+  } catch {
+    return undefined
+  }
+}
+
+function persistSettings(snapshot: SettingsSnapshot) {
+  window.localStorage.setItem(STORAGE_KEY, JSON.stringify(snapshot))
+}
+
+// Pagina Impostazioni: gestisce preferenze feed e account con una struttura a tab.
+function SettingsPage() {
+  const [activeTab, setActiveTab] = useState<SettingsTab>('interests')
+  const [selectedMacroTopics, setSelectedMacroTopics] = useState<string[]>(() =>
+    readInitialSettings().selectedMacroTopics,
+  )
+  const [keywords, setKeywords] = useState<string[]>(() => readInitialSettings().keywords)
+  const [keywordInput, setKeywordInput] = useState('')
+  const [subscriptionState, setSubscriptionState] = useState<SubscriptionState>(
+    () => readInitialSettings().subscriptionState,
+  )
+
+  useEffect(() => {
+    fetchProfile()
+      .then((res) => {
+        if (res && res.profile) {
+          setSelectedMacroTopics(res.profile.macroTopics || [])
+          setKeywords(res.profile.keywords || [])
+        }
+      })
+      .catch(() => {})
+  }, [])
+
+  const handleToggleMacroTopic = (topic: string) => {
+    // Toggle semplice: se la categoria esiste la rimuove, altrimenti la aggiunge.
+    setSelectedMacroTopics((currentTopics) =>
+      currentTopics.includes(topic)
+        ? currentTopics.filter((savedTopic) => savedTopic !== topic)
+        : [...currentTopics, topic],
+    )
+  }
+
+  const handleSaveMacroTopics = () => {
+    updateProfile({ macroTopics: selectedMacroTopics })
+      .then((res) => {
+        if (res && res.profile) {
+          setSelectedMacroTopics(res.profile.macroTopics || selectedMacroTopics)
+        }
+        persistSettings({ selectedMacroTopics, keywords, subscriptionState })
+      })
+      .catch(() => {
+        // fallback local persist
+        persistSettings({ selectedMacroTopics, keywords, subscriptionState })
+      })
+  }
+
+  const handleAddKeyword = (rawKeyword: string) => {
+    const cleanedKeyword = rawKeyword.trim()
+
+    // Evita duplicati e valori vuoti per mantenere la lista leggibile.
+    if (!cleanedKeyword || keywords.includes(cleanedKeyword)) {
+      return
+    }
+
+    setKeywords((currentKeywords) => [...currentKeywords, cleanedKeyword])
+    setKeywordInput('')
+  }
+
+  const handleRemoveKeyword = (keywordToRemove: string) => {
+    setKeywords((currentKeywords) =>
+      currentKeywords.filter((savedKeyword) => savedKeyword !== keywordToRemove),
+    )
+  }
+
+  const handleSaveKeywords = () => {
+    updateProfile({ keywords })
+      .then((res) => {
+        if (res && res.profile) {
+          setKeywords(res.profile.keywords || keywords)
+        }
+        persistSettings({ selectedMacroTopics, keywords, subscriptionState })
+      })
+      .catch(() => {
+        persistSettings({ selectedMacroTopics, keywords, subscriptionState })
+      })
+  }
+
+  const handleUpgrade = () => {
+    const nextSubscriptionState: SubscriptionState = 'pro'
+    setSubscriptionState(nextSubscriptionState)
+    persistSettings({ selectedMacroTopics, keywords, subscriptionState: nextSubscriptionState })
+  }
+
+  const handleCancelSubscription = () => {
+    const nextSubscriptionState: SubscriptionState = 'free'
+    setSubscriptionState(nextSubscriptionState)
+    persistSettings({ selectedMacroTopics, keywords, subscriptionState: nextSubscriptionState })
+  }
+
+  return (
+    <div className="feed-layout settings-layout" aria-label="Impostazioni BriefAI">
+      <FeedSidebar activeItem="impostazioni" />
+
+      <section className="feed-main settings-main">
+        <FeedTopbar />
+
+        <div className="feed-content settings-content">
+          <header className="settings-header">
+            <h1>Impostazioni</h1>
+            <p>Gestisci preferenze e profilo</p>
+          </header>
+
+          <SettingsTabs activeTab={activeTab} onTabChange={setActiveTab} />
+
+          {activeTab === 'interests' ? (
+            <div className="settings-stack">
+              <InterestPreferences
+                selectedMacroTopics={selectedMacroTopics}
+                onToggleMacroTopic={handleToggleMacroTopic}
+                onSaveMacroTopics={handleSaveMacroTopics}
+              />
+
+              <TrackedKeywords
+                keywords={keywords}
+                keywordInput={keywordInput}
+                onKeywordInputChange={setKeywordInput}
+                onAddKeyword={handleAddKeyword}
+                onRemoveKeyword={handleRemoveKeyword}
+                onSaveKeywords={handleSaveKeywords}
+              />
+            </div>
+          ) : (
+            <AccountSettings
+              username="John Doe"
+              email="john@example.com"
+              subscriptionState={subscriptionState}
+              onUpgrade={handleUpgrade}
+              onCancelSubscription={handleCancelSubscription}
+            />
+          )}
+        </div>
+      </section>
+    </div>
+  )
+}
+
+export default SettingsPage

frontend-BriefAI/src/pages/TrendsPage.css

@@ -0,0 +1,289 @@
+.trends-content {
+  max-width: 1280px;
+}
+
+.trends-header {
+  margin-bottom: 32px;
+}
+
+.trends-title-row {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+.trends-flame {
+  font-size: 32px;
+  line-height: 1;
+}
+
+.trends-header h1 {
+  margin: 0;
+  font-size: clamp(34px, 4vw, 48px);
+  font-weight: 800;
+  color: #111827;
+}
+
+.trends-header p {
+  margin: 10px 0 0;
+  color: #64748b;
+}
+
+.trends-stats-grid {
+  display: grid;
+  grid-template-columns: 1fr;
+  gap: 14px;
+  margin-bottom: 22px;
+}
+
+.trend-stat-card {
+  border: 1px solid;
+  border-radius: 18px;
+  padding: 16px;
+  background: #fff;
+}
+
+.trend-stat-card.hottest {
+  border-color: #fb923c;
+  background: linear-gradient(135deg, #fff7ed, #fee2e2);
+  color: #9a3412;
+}
+
+.trend-stat-card.emerging {
+  border-color: #60a5fa;
+  background: linear-gradient(135deg, #eff6ff, #f5f3ff);
+  color: #1e3a8a;
+}
+
+.trend-stat-card.growth {
+  border-color: #4ade80;
+  background: linear-gradient(135deg, #ecfdf5, #d1fae5);
+  color: #166534;
+}
+
+.trend-stat-icon {
+  width: 28px;
+  height: 28px;
+  display: inline-grid;
+  place-items: center;
+}
+
+.trend-stat-icon svg {
+  width: 22px;
+  height: 22px;
+  fill: none;
+  stroke: currentColor;
+  stroke-width: 2;
+  stroke-linecap: round;
+  stroke-linejoin: round;
+}
+
+.trend-stat-label {
+  margin: 8px 0 6px;
+  font-size: 13px;
+  font-weight: 700;
+}
+
+.trend-stat-value {
+  margin: 0;
+  font-size: clamp(26px, 3vw, 32px);
+  font-weight: 800;
+  line-height: 1.15;
+}
+
+.trend-stat-meta {
+  margin: 6px 0 0;
+  font-size: 13px;
+  font-weight: 600;
+  opacity: 0.88;
+}
+
+.trends-list {
+  display: grid;
+  gap: 14px;
+}
+
+.topic-card-row {
+  display: grid;
+  grid-template-columns: 48px minmax(0, 1fr);
+  gap: 14px;
+  padding: 14px;
+  border: 1px solid #e5e7eb;
+  border-radius: 18px;
+  background: #fff;
+  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.04);
+  transition: border-color 0.2s ease, box-shadow 0.2s ease;
+  cursor: pointer;
+}
+
+.topic-card-row:hover {
+  border-color: #60a5fa;
+  box-shadow: 0 16px 36px rgba(37, 99, 235, 0.12);
+}
+
+.topic-rank {
+  width: 48px;
+  height: 48px;
+  border-radius: 12px;
+  display: grid;
+  place-items: center;
+  font-weight: 800;
+  font-size: 16px;
+}
+
+.topic-rank.rank-1 {
+  color: #fff;
+  background: linear-gradient(135deg, #f97316, #ef4444);
+}
+
+.topic-rank.rank-2 {
+  color: #fff;
+  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
+}
+
+.topic-rank.rank-3 {
+  color: #fff;
+  background: linear-gradient(135deg, #22c55e, #10b981);
+}
+
+.topic-rank.rank-default {
+  color: #4b5563;
+  background: #e5e7eb;
+}
+
+.topic-main {
+  min-width: 0;
+}
+
+.topic-top-row {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 10px;
+}
+
+.topic-top-row h2 {
+  margin: 0;
+  font-size: 24px;
+  font-weight: 800;
+  line-height: 1.2;
+  color: #111827;
+}
+
+.topic-sentiment {
+  border-radius: 999px;
+  padding: 4px 10px;
+  font-size: 12px;
+  font-weight: 700;
+}
+
+.topic-sentiment.positive {
+  color: #166534;
+  background: #dcfce7;
+}
+
+.topic-sentiment.negative {
+  color: #991b1b;
+  background: #fee2e2;
+}
+
+.topic-sentiment.neutral {
+  color: #475569;
+  background: #e2e8f0;
+}
+
+.topic-description {
+  margin: 8px 0 0;
+  font-size: 14px;
+  color: #64748b;
+}
+
+.topic-metrics-row {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 16px;
+  margin-top: 12px;
+}
+
+.topic-growth {
+  margin: 0;
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  color: #16a34a;
+  font-weight: 800;
+}
+
+.topic-growth svg {
+  width: 16px;
+  height: 16px;
+  fill: none;
+  stroke: currentColor;
+  stroke-width: 2;
+  stroke-linecap: round;
+  stroke-linejoin: round;
+}
+
+.topic-volume,
+.topic-articles {
+  margin: 0;
+  color: #6b7280;
+  font-size: 14px;
+}
+
+.topic-volume strong,
+.topic-articles strong {
+  color: #111827;
+}
+
+.topic-progress-track {
+  margin-top: 12px;
+  width: 100%;
+  height: 8px;
+  border-radius: 999px;
+  background: #e5e7eb;
+  overflow: hidden;
+}
+
+.topic-progress-fill {
+  height: 100%;
+  border-radius: 999px;
+}
+
+.topic-progress-fill.top {
+  background: linear-gradient(90deg, #f97316, #ef4444);
+}
+
+.topic-progress-fill.standard {
+  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
+}
+
+@media (min-width: 900px) {
+  .trends-stats-grid {
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+  }
+}
+
+@media (max-width: 640px) {
+  .trends-stats-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .topic-card-row {
+    grid-template-columns: 1fr;
+  }
+
+  .topic-rank {
+    width: 48px;
+  }
+
+  .topic-top-row {
+    flex-direction: column;
+    gap: 8px;
+  }
+
+  .topic-top-row h2 {
+    font-size: 21px;
+  }
+}

frontend-BriefAI/src/pages/TrendsPage.tsx

@@ -0,0 +1,247 @@
+import FeedSidebar from '../components/FeedSidebar'
+import FeedTopbar from '../components/FeedTopbar'
+import './FeedPage.css'
+import './TrendsPage.css'
+import { useEffect, useState } from 'react'
+import { fetchTrendingTopics, fetchSentimentStats } from '../services/apiService'
+
+type Sentiment = 'Positive' | 'Negative' | 'Neutral'
+
+type TrendingTopic = {
+  rank: number
+  name: string
+  description: string
+  volume: number
+  growth: number
+  articles: number
+  sentiment: Sentiment
+}
+
+const defaultTrendingTopics: TrendingTopic[] = [
+  {
+    rank: 1,
+    name: 'AI Safety',
+    description: 'Major breakthroughs in AI safety frameworks and alignment research',
+    volume: 1420,
+    growth: 45,
+    articles: 87,
+    sentiment: 'Positive',
+  },
+  {
+    rank: 2,
+    name: 'Quantum Computing',
+    description: 'New quantum processors and cryptography implications',
+    volume: 980,
+    growth: 32,
+    articles: 54,
+    sentiment: 'Neutral',
+  },
+  {
+    rank: 3,
+    name: 'Fintech Investment',
+    description: 'Record funding rounds in AI-powered financial solutions',
+    volume: 870,
+    growth: 28,
+    articles: 62,
+    sentiment: 'Positive',
+  },
+  {
+    rank: 4,
+    name: 'Crypto Regulation',
+    description: 'Increased regulatory scrutiny and compliance requirements',
+    volume: 760,
+    growth: 18,
+    articles: 48,
+    sentiment: 'Negative',
+  },
+  {
+    rank: 5,
+    name: 'Clean Energy',
+    description: 'Battery technology breakthroughs and renewable energy adoption',
+    volume: 640,
+    growth: 15,
+    articles: 41,
+    sentiment: 'Positive',
+  },
+  {
+    rank: 6,
+    name: 'Remote Work Tech',
+    description: 'New collaboration tools and hybrid workplace solutions',
+    volume: 520,
+    growth: 12,
+    articles: 35,
+    sentiment: 'Neutral',
+  },
+  {
+    rank: 7,
+    name: 'Cybersecurity',
+    description: 'Rising threats and zero-trust architecture adoption',
+    volume: 480,
+    growth: 10,
+    articles: 32,
+    sentiment: 'Negative',
+  },
+  {
+    rank: 8,
+    name: 'Space Tech',
+    description: 'Commercial space launches and satellite communications',
+    volume: 420,
+    growth: 8,
+    articles: 28,
+    sentiment: 'Positive',
+  },
+]
+
+function formatMentions(value: number) {
+  return value.toLocaleString('en-US')
+}
+
+function getSentimentClass(sentiment: Sentiment) {
+  if (sentiment === 'Positive') {
+    return 'topic-sentiment positive'
+  }
+
+  if (sentiment === 'Negative') {
+    return 'topic-sentiment negative'
+  }
+
+  return 'topic-sentiment neutral'
+}
+
+function getRankClass(rank: number) {
+  if (rank === 1) return 'topic-rank rank-1'
+  if (rank === 2) return 'topic-rank rank-2'
+  if (rank === 3) return 'topic-rank rank-3'
+  return 'topic-rank rank-default'
+}
+
+function getProgressClass(rank: number) {
+  return rank === 1 ? 'topic-progress-fill top' : 'topic-progress-fill standard'
+}
+
+function TrendsPage() {
+  const [topics, setTopics] = useState<TrendingTopic[]>(defaultTrendingTopics)
+  const [sentimentOverview, setSentimentOverview] = useState<any>(null)
+
+  useEffect(() => {
+    fetchTrendingTopics()
+      .then((data) => {
+        if (Array.isArray(data) && data.length) setTopics(data)
+      })
+      .catch(() => {})
+
+    fetchSentimentStats()
+      .then((data) => setSentimentOverview(data))
+      .catch(() => {})
+  }, [])
+
+  return (
+    <div className="feed-layout" aria-label="Trending Topics BriefAI">
+      <FeedSidebar activeItem="tendenze" />
+
+      <section className="feed-main">
+        <FeedTopbar />
+
+        <section className="feed-content trends-content" aria-label="Contenuto trending topics">
+          <header className="trends-header">
+            <div className="trends-title-row">
+              <span className="trends-flame" aria-hidden="true">
+                🔥
+              </span>
+              <h1>Trending Topics</h1>
+            </div>
+            <p>Hot topics ranked by growth and volume</p>
+          </header>
+
+          <section className="trends-stats-grid" aria-label="Statistiche trend principali">
+            <article className="trend-stat-card hottest">
+              <span className="trend-stat-icon" aria-hidden="true">
+                🔥
+              </span>
+              <p className="trend-stat-label">Hottest Topic</p>
+              <p className="trend-stat-value">AI Safety</p>
+              <p className="trend-stat-meta">+45% growth this week</p>
+            </article>
+
+            <article className="trend-stat-card emerging">
+              <span className="trend-stat-icon" aria-hidden="true">
+                <TrendingUpMiniIcon />
+              </span>
+              <p className="trend-stat-label">Emerging Topics</p>
+              <p className="trend-stat-value">12</p>
+              <p className="trend-stat-meta">New this week</p>
+            </article>
+
+            <article className="trend-stat-card growth">
+              <span className="trend-stat-icon" aria-hidden="true">
+                <ArrowUpMiniIcon />
+              </span>
+              <p className="trend-stat-label">Avg. Growth</p>
+              <p className="trend-stat-value">+21%</p>
+              <p className="trend-stat-meta">Across all topics</p>
+            </article>
+          </section>
+
+          <section className="trends-list" aria-label="Lista trending topics">
+            {topics.map((topic) => (
+              <article key={topic.rank} className="topic-card-row">
+                <div className={getRankClass(topic.rank)} aria-label={`Rank ${topic.rank}`}>
+                  #{topic.rank}
+                </div>
+
+                <div className="topic-main">
+                  <div className="topic-top-row">
+                    <h2>{topic.name}</h2>
+                    <span className={getSentimentClass(topic.sentiment)}>{topic.sentiment}</span>
+                  </div>
+
+                  <p className="topic-description">{topic.description}</p>
+
+                  <div className="topic-metrics-row" aria-label={`Metriche ${topic.name}`}>
+                    <p className="topic-growth">
+                      <TrendingUpMiniIcon />
+                      <span>{`+${topic.growth}%`}</span>
+                    </p>
+                    <p className="topic-volume">
+                      <strong>{formatMentions(topic.volume)}</strong> mentions
+                    </p>
+                    <p className="topic-articles">
+                      <strong>{topic.articles}</strong> articles
+                    </p>
+                  </div>
+
+                  <div className="topic-progress-track" aria-hidden="true">
+                    <div
+                      className={getProgressClass(topic.rank)}
+                      style={{ width: `${Math.min((topic.growth / 50) * 100, 100)}%` }}
+                    ></div>
+                  </div>
+                </div>
+              </article>
+            ))}
+          </section>
+        </section>
+      </section>
+    </div>
+  )
+}
+
+function TrendingUpMiniIcon() {
+  return (
+    <svg viewBox="0 0 24 24">
+      <path d="M3 16l6-6 4 4 8-8" />
+      <path d="M14 6h7v7" />
+    </svg>
+  )
+}
+
+function ArrowUpMiniIcon() {
+  return (
+    <svg viewBox="0 0 24 24">
+      <path d="M12 19V5" />
+      <path d="M6 11l6-6 6 6" />
+    </svg>
+  )
+}
+
+export default TrendsPage

frontend-BriefAI/src/services/apiService.ts

@@ -0,0 +1,66 @@
+const BASE = import.meta.env.VITE_API_URL as string
+import { getAuthHeader } from './authService'
+
+const authFetch = (path: string, options: RequestInit = {}) =>
+  fetch(`${BASE}${path}`, {
+    ...options,
+    headers: { ...getAuthHeader(), ...options.headers },
+  })
+
+// GET /api/stats/sentiment
+export const fetchSentimentStats = () =>
+  authFetch('/api/stats/sentiment').then((r) => r.json())
+
+// GET /api/stats/trending
+export const fetchTrendingTopics = () =>
+  authFetch('/api/stats/trending').then((r) => r.json())
+
+// GET /api/stats/categories
+export const fetchCategoryStats = () =>
+  authFetch('/api/stats/categories').then((r) => r.json())
+
+// GET /api/stats/sources
+export const fetchSourceStats = () =>
+  authFetch('/api/stats/sources').then((r) => r.json())
+
+// GET /api/stats/overview
+export const fetchOverview = () =>
+  authFetch('/api/stats/overview').then((r) => r.json())
+
+// GET /api/profile
+export const fetchProfile = () =>
+  authFetch('/api/profile').then((r) => r.json())
+
+// PUT /api/profile
+export const updateProfile = async (data: {
+  userId?: string
+  macroTopics?: string[]
+  keywords?: string[]
+}) => {
+  // Sync to backend
+  const backendRes = await authFetch('/api/profile', {
+    method: 'PUT',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(data),
+  }).then((r) => r.json());
+
+  // Opt-in sync to n8n if url is present and userId is known
+  const n8nUrl = import.meta.env.VITE_N8N_URL;
+  if (n8nUrl && data.userId && data.macroTopics) {
+    try {
+      await fetch(`${n8nUrl}/briefai/profile/update`, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({
+          userId: data.userId,
+          macroTopics: data.macroTopics,
+          keywords: data.keywords,
+        })
+      });
+    } catch (e) {
+      console.warn("Failed to sync profile to n8n webhook", e);
+    }
+  }
+
+  return backendRes;
+}

frontend-BriefAI/src/services/authService.ts

@@ -0,0 +1,70 @@
+const BASE = import.meta.env.VITE_API_URL as string;
+
+// Salva il token dopo login o registrazione
+const saveToken = (token: string) =>
+  localStorage.setItem('briefai_token', token);
+
+// Restituisce l'header Authorization da aggiungere a ogni richiesta protetta
+export const getAuthHeader = (): Record<string, string> => {
+  const token = localStorage.getItem('briefai_token');
+  return token ? { Authorization: `Bearer ${token}` } : {};
+};
+
+// Decodifica il payload JWT senza librerie esterne
+export const decodeToken = (token: string) => {
+  try {
+    return JSON.parse(atob(token.split('.')[1]));
+  } catch {
+    return null;
+  }
+};
+
+// POST /api/auth/login
+export const login = async (email: string, password: string) => {
+  const res = await fetch(`${BASE}/api/auth/login`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ email, password }),
+  });
+  if (!res.ok) throw await res.json();
+  const data = await res.json();
+  saveToken(data.token);
+  return data;
+};
+
+// POST /api/auth/register
+export const register = async (payload: {
+  email: string;
+  password: string;
+  username: string;
+  preferences?: {
+    macroTopics?: string[] | undefined;
+    keywords?: string[] | undefined;
+  } | undefined;
+}) => {
+  const res = await fetch(`${BASE}/api/auth/register`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(payload),
+  });
+  if (!res.ok) throw await res.json();
+  const data = await res.json();
+  saveToken(data.token);
+  return data;
+};
+
+// GET /api/auth/me — verifica se il token è ancora valido
+export const getMe = async () => {
+  const res = await fetch(`${BASE}/api/auth/me`, {
+    headers: getAuthHeader(),
+  });
+  if (!res.ok) {
+    localStorage.removeItem('briefai_token');
+    return null;
+  }
+  return res.json();
+};
+
+// Logout locale
+export const logout = () =>
+  localStorage.removeItem('briefai_token');

frontend-BriefAI/src/services/feedService.ts

@@ -0,0 +1,35 @@
+import type { Article } from '../types/article'
+import { getAuthHeader, decodeToken } from './authService'
+
+const N8N = import.meta.env.VITE_N8N_URL
+
+export const fetchPersonalizedFeed = async (): Promise<Article[]> => {
+  console.log("🚀 N8N URL:", N8N);
+  const token = localStorage.getItem('briefai_token')
+  if (!token) throw new Error('Non autenticato')
+
+  const payload = decodeToken(token)
+  const userId: string = payload?.userId
+  if (!userId) throw new Error('Token non valido')
+
+  const res = await fetch(`${N8N}/briefai/feed`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json', ...getAuthHeader() },
+    body: JSON.stringify({ userId, limit: 20 }),
+  })
+  if (!res.ok) {
+    const status = res.status
+    const statusText = res.statusText
+    const errorText = await res.text().catch(() => 'non leggibile')
+    console.error('[FeedService] HTTP Error:', { status, statusText, errorText })
+    throw new Error(`Errore nel recupero del feed: ${status} ${statusText}`)
+  }
+  const data = await res.json()
+  console.log('[FeedService] Response:', data)
+  const articles = (data.articles ?? []).map((a: any) => {
+    const idVal = a.uniqueKey ?? a.id ?? a._id ?? ''
+    const uniqueKey = typeof idVal === 'object' ? String(idVal) : idVal
+    return { ...a, uniqueKey }
+  })
+  return articles
+}

frontend-BriefAI/src/services/feedbackService.ts

@@ -0,0 +1,21 @@
+const N8N = import.meta.env.VITE_N8N_URL
+
+export const sendFeedback = async (
+  articleId: string,
+  vote: 1 | -1
+): Promise<void> => {
+  const token = localStorage.getItem('briefai_token')
+  if (!token) return
+
+  const payload = JSON.parse(atob(token.split('.')[1]))
+
+  await fetch(`${N8N}/briefai/feedback`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({
+      userId: payload.userId,
+      articleId,
+      vote,
+    }),
+  })
+}

frontend-BriefAI/src/types/article.ts

@@ -0,0 +1,14 @@
+export interface Article {
+  uniqueKey: string;
+  title: string;
+  url: string;
+  pubDate: string;
+  source: string;
+  category: string;
+  summary: string;
+  sentiment: 'Positive' | 'Negative' | 'Neutral';
+  entities: string[];
+  trendingTopics: string[];
+  macroTopics?: string[];
+  score?: number;
+}

frontend-BriefAI/tsconfig.app.json

@@ -0,0 +1,25 @@
+{
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
+    "target": "es2023",
+    "lib": ["ES2023", "DOM"],
+    "module": "esnext",
+    "types": ["vite/client"],
+    "skipLibCheck": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+    "jsx": "react-jsx",
+
+    /* Linting */
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true
+  },
+  "include": ["src"]
+}

frontend-BriefAI/tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "files": [],
+  "references": [
+    { "path": "./tsconfig.app.json" },
+    { "path": "./tsconfig.node.json" }
+  ]
+}

frontend-BriefAI/tsconfig.node.json

@@ -0,0 +1,24 @@
+{
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
+    "target": "es2023",
+    "lib": ["ES2023"],
+    "module": "esnext",
+    "types": ["node"],
+    "skipLibCheck": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+
+    /* Linting */
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true
+  },
+  "include": ["vite.config.ts"]
+}

frontend-BriefAI/vite.config.ts

@@ -0,0 +1,11 @@
+import { defineConfig } from 'vite'
+import react, { reactCompilerPreset } from '@vitejs/plugin-react'
+import babel from '@rolldown/plugin-babel'
+
+// https://vite.dev/config/
+export default defineConfig({
+  plugins: [
+    react(),
+    babel({ presets: [reactCompilerPreset()] })
+  ],
+})