feat(workspace): setup uv workspace con 2 member (multi-swarm-core + strategy-crypto)

- Root pyproject.toml come workspace coordinator (no codice, dev deps + tool config)
- src/multi_swarm_core/pyproject.toml: package core con dipendenze (pandas, openai, pydantic, ...)
- src/strategy_crypto/pyproject.toml: package strategia con multi-swarm-core come workspace dep
- Aggiunte env var GA_DB_PATH, STRATEGY_CRYPTO_DB_PATH, DASHBOARD_ROOT_PATH in .env.example
- Patch Dockerfile (commento, label, healthcheck per workspace)
- .gitignore: aggiunto .omc/ + state/*.db generico
- Rigenerato uv.lock dal workspace

uv tree mostra:
  strategy-crypto v0.1.0
  ├── multi-swarm-core v0.1.0
  ├── nicegui v3.12.0
  └── ...

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.gitignore

@@ -24,6 +24,10 @@ venv/
 *.key
 
 # Project artefacts (non versionati: troppo grandi o rigenerabili)
+state/*.db
+state/*.db-journal
+state/*.db-wal
+state/*.db-shm
 runs.db
 runs.db-journal
 runs.db-wal
@@ -36,6 +40,9 @@ checkpoints/
 logs/
 *.log
 
+# OMC state (auto-orchestration)
+.omc/
+
 # Build / dist
 build/
 dist/