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>

backend/app/schemas/participant_list.py

@@ -0,0 +1,19 @@
+import uuid
+from datetime import datetime
+
+from pydantic import BaseModel
+
+
+class ParticipantListUpsert(BaseModel):
+    notes: str | None = None
+
+
+class ParticipantListOut(BaseModel):
+    id: uuid.UUID
+    championship_id: uuid.UUID
+    published_by: uuid.UUID
+    is_published: bool
+    published_at: datetime | None
+    notes: str | None
+
+    model_config = {"from_attributes": True}