feat(setup): T02 initialize virtual environment and gitignore

- Create comprehensive .gitignore with Python, venv, DB exclusions
- Add test_virtual_env_setup.py with 6 unit tests
- Verify Python 3.13.5 compatibility (>= 3.11 required)
- All tests passing (6/6)

Refs: T02

.gitignore

@@ -0,0 +1,69 @@
+# ===========================================
+# OpenRouter API Key Monitor - .gitignore
+# ===========================================
+
+# Virtual environments
+.venv/
+venv/
+ENV/
+env/
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Database files
+*.db
+*.sqlite
+*.sqlite3
+*.db-journal
+
+# Environment variables
+.env
+.env.local
+.env.*.local
+!.env.example
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+.DS_Store
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+.tox/
+.nox/
+
+# Logs
+*.log
+logs/
+
+# Data directory (for local development)
+data/
+
+# Alembic
+alembic/versions/*.py
+!alembic/versions/.gitkeep

export/progress.md

@@ -9,11 +9,11 @@
 | Metrica | Valore |
 |---------|--------|
 | **Stato** | 🟡 In Progress |
-| **Progresso** | 1% |
+| **Progresso** | 3% |
 | **Data Inizio** | 2024-04-07 |
 | **Data Target** | TBD |
 | **Task Totali** | 74 |
-| **Task Completati** | 1 |
+| **Task Completati** | 2 |
 | **Task In Progress** | 1 |
 
 ---
@@ -37,9 +37,9 @@
 
 ## 📋 Task Pianificate
 
-### 🔧 Setup Progetto (T01-T05) - 1/5 completati
+### 🔧 Setup Progetto (T01-T05) - 2/5 completati
 - [x] T01: Creare struttura cartelle progetto (2024-04-07)
-- [ ] T02: Inizializzare virtual environment
+- [x] T02: Inizializzare virtual environment e .gitignore (2024-04-07)
 - [ ] T03: Creare requirements.txt con dipendenze
 - [ ] T04: Setup file configurazione (.env, config.py)
 - [ ] T05: Configurare pytest e struttura test

tests/unit/test_virtual_env_setup.py

@@ -0,0 +1,50 @@
+"""Test for virtual environment and gitignore setup (T02)."""
+import os
+import pytest
+
+
+@pytest.mark.unit
+class TestVirtualEnvironmentSetup:
+    """Test virtual environment and gitignore configuration."""
+    
+    def test_gitignore_exists(self):
+        """Verify .gitignore file exists."""
+        gitignore_path = "/home/google/Sources/LucaSacchiNet/openrouter-watcher/.gitignore"
+        assert os.path.isfile(gitignore_path), f"File {gitignore_path} does not exist"
+    
+    def test_gitignore_contains_venv(self):
+        """Verify .gitignore excludes virtual environments."""
+        gitignore_path = "/home/google/Sources/LucaSacchiNet/openrouter-watcher/.gitignore"
+        with open(gitignore_path, 'r') as f:
+            content = f.read()
+        assert '.venv/' in content or 'venv/' in content or 'ENV/' in content, \
+            ".gitignore should exclude virtual environment directories"
+    
+    def test_gitignore_contains_pycache(self):
+        """Verify .gitignore excludes __pycache__."""
+        gitignore_path = "/home/google/Sources/LucaSacchiNet/openrouter-watcher/.gitignore"
+        with open(gitignore_path, 'r') as f:
+            content = f.read()
+        assert '__pycache__/' in content, ".gitignore should exclude __pycache__"
+    
+    def test_gitignore_contains_env(self):
+        """Verify .gitignore excludes .env files."""
+        gitignore_path = "/home/google/Sources/LucaSacchiNet/openrouter-watcher/.gitignore"
+        with open(gitignore_path, 'r') as f:
+            content = f.read()
+        assert '.env' in content, ".gitignore should exclude .env files"
+    
+    def test_gitignore_contains_db_files(self):
+        """Verify .gitignore excludes database files."""
+        gitignore_path = "/home/google/Sources/LucaSacchiNet/openrouter-watcher/.gitignore"
+        with open(gitignore_path, 'r') as f:
+            content = f.read()
+        assert '*.db' in content or '*.sqlite' in content or '*.sqlite3' in content, \
+            ".gitignore should exclude database files"
+    
+    def test_python_version_is_311_or_higher(self):
+        """Verify Python version is 3.11 or higher."""
+        import sys
+        version_info = sys.version_info
+        assert version_info.major == 3 and version_info.minor >= 11, \
+            f"Python version should be 3.11+, found {version_info.major}.{version_info.minor}"