Full app rebuild: FastAPI backend + React Native mobile with auth, championships, admin

Backend (FastAPI + SQLAlchemy + SQLite):
- JWT auth with access/refresh tokens, bcrypt password hashing
- User model with member/organizer/admin roles, auto-approve members
- Championship, Registration, ParticipantList, Notification models
- Alembic async migrations, seed data with test users
- Registration endpoint returns tokens for members, pending for organizers
- /registrations/my returns championship title/date/location via eager loading
- Admin endpoints: list users, approve/reject organizers

Mobile (React Native + Expo + TypeScript):
- Zustand auth store, Axios client with token refresh interceptor
- Role-based registration (Member vs Organizer) with contextual form labels
- Tab navigation with Ionicons, safe area headers, admin tab for admin role
- Championships list with status badges, detail screen with registration progress
- My Registrations with championship title, progress bar, and tap-to-navigate
- Admin panel with pending/all filter, approve/reject with confirmation
- Profile screen with role badge, Ionicons info rows, sign out
- Password visibility toggle (Ionicons), keyboard flow hints (returnKeyType)

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

mobile/package.json

@@ -0,0 +1,34 @@
+{
+  "name": "mobile",
+  "version": "1.0.0",
+  "main": "index.ts",
+  "scripts": {
+    "start": "expo start",
+    "android": "expo start --android",
+    "ios": "expo start --ios",
+    "web": "expo start --web"
+  },
+  "dependencies": {
+    "@hookform/resolvers": "^5.2.2",
+    "@react-navigation/bottom-tabs": "^7.14.0",
+    "@react-navigation/native": "^7.1.28",
+    "@react-navigation/native-stack": "^7.13.0",
+    "@tanstack/react-query": "^5.90.21",
+    "axios": "^1.13.5",
+    "expo": "~54.0.33",
+    "expo-secure-store": "^15.0.8",
+    "expo-status-bar": "~3.0.9",
+    "react": "19.1.0",
+    "react-hook-form": "^7.71.2",
+    "react-native": "0.81.5",
+    "react-native-safe-area-context": "^5.7.0",
+    "react-native-screens": "4.16.0",
+    "zod": "^4.3.6",
+    "zustand": "^5.0.11"
+  },
+  "devDependencies": {
+    "@types/react": "~19.1.0",
+    "typescript": "~5.9.2"
+  },
+  "private": true
+}