Initial commit: Pole Dance Championships App

Full-stack mobile app for pole dance championship management.

Backend: FastAPI + SQLAlchemy 2 (async) + SQLite (dev) / PostgreSQL (prod)
- JWT auth with refresh token rotation
- Championship CRUD with Instagram Graph API sync (APScheduler)
- Registration flow with status management
- Participant list publish with Expo push notifications
- Alembic migrations, pytest test suite

Mobile: React Native + Expo (TypeScript)
- Auth gate: pending approval screen for new members
- Championships list & detail screens
- Registration form with status tracking
- React Query + Zustand + React Navigation v6

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.env.example

@@ -0,0 +1,14 @@
+# PostgreSQL
+POSTGRES_PASSWORD=changeme
+
+# JWT — generate with: python -c "import secrets; print(secrets.token_hex(32))"
+SECRET_KEY=changeme
+
+# Instagram Graph API
+# 1. Convert your Instagram account to Business/Creator and link it to a Facebook Page
+# 2. Create a Facebook App at developers.facebook.com
+# 3. Add Instagram Graph API product; grant instagram_basic + pages_read_engagement
+# 4. Generate a long-lived User Access Token (valid 60 days; auto-refreshed by the app)
+INSTAGRAM_USER_ID=123456789
+INSTAGRAM_ACCESS_TOKEN=EAAxxxxxx...
+INSTAGRAM_POLL_INTERVAL=1800   # seconds between Instagram polls (default 30 min)