feat: FlowDeck v0.2.0 — Kanban Gitea intégré

- Dashboard projets Gitea (user + orgs)
- Board Kanban 5 colonnes avec drag & drop (SortableJS)
- Sync bidirectionnelle colonnes ↔ labels Gitea
- Filtres milestone/label/assignee
- Notes Markdown par projet
- API REST (/api/health, /api/move, /api/col-mapping…)
- Colonnes custom, WIP limits
- Thème clair/sombre
- Cache Gitea TTL
- Docker + docker-compose
- Tests pytest
- Docs: README, ARCHITECTURE, CHANGELOG, ROADMAP

.env.example

@@ -0,0 +1,22 @@
+# ── Gitea ──
+GITEA_URL=https://git.dracodev.net
+GITEA_TOKEN=change-me
+GITEA_OAUTH_CLIENT_ID=
+GITEA_OAUTH_CLIENT_SECRET=
+GITEA_WEBHOOK_SECRET=
+
+# ── App ──
+APP_SECRET_KEY=change-me-to-random
+APP_HOST=0.0.0.0
+APP_PORT=8080
+LOG_LEVEL=INFO
+DEFAULT_LANG=fr
+
+# ── Database ──
+# SQLite (default): sqlite:////data/flowdeck.db
+# PostgreSQL (optional): postgresql://user:pass@host:5432/flowdeck
+DATABASE_URL=sqlite:////data/flowdeck.db
+
+# ── Sync ──
+SYNC_INTERVAL=60
+GITEA_CACHE_TTL=30