feat: dashboard real-time con aggiornamento incrementale

- Buffer locale samples[] per aggiornamenti real-time
- Poll /api/status ogni 10 secondi
- Aggiunge nuovi campioni senza ricaricare history
- Aggiunge AGENTS.md per istruzioni agenti OpenCode
- Aggiunge team agenti in .opencode/agents/

.opencode/agents/code-explorer/SKILL.md

@@ -0,0 +1,71 @@
+---
+name: code-explorer
+description: "Code Explorer — ricerca file, pattern, architettura nel progetto supabase-pinger"
+allowed-tools:
+  - Read
+  - Glob
+  - Grep
+  - Task
+---
+
+<objective>
+Ricerca file, pattern e analizza l'architettura del progetto supabase-pinger.
+</objective>
+
+<project_context>
+File principali:
+- app.py (421 lines) — FastAPI + ping logic
+- tests/test_api.py — 3 test functions
+- requirements.txt — Dependencies
+
+Componenti chiave:
+- create_app() — FastAPI factory
+- Settings — Config dataclass
+- RRDStore — Circular buffer
+- run_ping() — Keep-alive
+- collector_loop() — Daemon thread
+</project_context>
+
+<search_commands>
+# Find Python files
+Glob: **/*.py
+
+# Find all config
+Glob: *.md, *.yml, *.txt, *.example
+
+# Search patterns
+Grep: def |class |import
+
+# Find functions
+Grep: "def " app.py
+Grep: "class " app.py
+</search_commands>
+
+<key_files_to_explore>
+Prima explora:
+1. app.py — entry point
+2. tests/test_api.py — test structure  
+3. AGENTS.md — instructions
+4. requirements.txt — deps
+</key_files_to_explore>
+
+<output_format>
+## Risultati
+### Files trovati
+- path/file.py (N lines)
+
+### Pattern matching
+- line N: code pattern
+
+### Architettura
+- Entry: app.py:create_app()
+- Config: app.py:Settings
+- Storage: app.py:RRDStore
+- Ping: app.py:run_ping()
+</output_format>
+
+<when_to_use>
+- Trovare file specifici
+- Cercare pattern
+- Comprendere architettura
+</when_to_use>