Add admin panel with CRUD endpoints and management UI

Add admin API endpoints for games, routes, pokemon, and route encounters
with full CRUD operations including bulk import. Build admin frontend
with game/route/pokemon management pages, navigation, and data tables.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/src/app/schemas/__init__.py

@@ -4,25 +4,51 @@ from app.schemas.encounter import (
     EncounterResponse,
     EncounterUpdate,
 )
-from app.schemas.game import GameDetailResponse, GameResponse, RouteResponse
+from app.schemas.game import (
+    GameCreate,
+    GameDetailResponse,
+    GameResponse,
+    GameUpdate,
+    RouteCreate,
+    RouteReorderRequest,
+    RouteResponse,
+    RouteUpdate,
+)
 from app.schemas.pokemon import (
+    BulkImportItem,
+    BulkImportResult,
+    PokemonCreate,
     PokemonResponse,
+    PokemonUpdate,
+    RouteEncounterCreate,
     RouteEncounterDetailResponse,
     RouteEncounterResponse,
+    RouteEncounterUpdate,
 )
 from app.schemas.run import RunCreate, RunDetailResponse, RunResponse, RunUpdate
 
 __all__ = [
+    "BulkImportItem",
+    "BulkImportResult",
     "EncounterCreate",
     "EncounterDetailResponse",
     "EncounterResponse",
     "EncounterUpdate",
+    "GameCreate",
     "GameDetailResponse",
     "GameResponse",
-    "RouteResponse",
+    "GameUpdate",
+    "PokemonCreate",
     "PokemonResponse",
+    "PokemonUpdate",
+    "RouteCreate",
+    "RouteEncounterCreate",
     "RouteEncounterDetailResponse",
     "RouteEncounterResponse",
+    "RouteEncounterUpdate",
+    "RouteReorderRequest",
+    "RouteResponse",
+    "RouteUpdate",
     "RunCreate",
     "RunDetailResponse",
     "RunResponse",