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/alembic/script.py.mako

@@ -0,0 +1,26 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}