feat: implement Redis caching for analytics endpoints with fallback to database

app/main.py

@@ -2,13 +2,25 @@
 from fastapi import FastAPI
 
 from app.api.routes import api_router
+from app.core.cache import init_cache, shutdown_cache
 from app.core.config import settings
+from app.core.middleware.cache_monitor import CacheAvailabilityMiddleware
 
 
 def create_app() -> FastAPI:
     """Build FastAPI application instance."""
     application = FastAPI(title=settings.project_name, version=settings.version)
     application.include_router(api_router)
+    application.add_middleware(CacheAvailabilityMiddleware)
+
+    @application.on_event("startup")
+    async def _startup() -> None:
+        await init_cache()
+
+    @application.on_event("shutdown")
+    async def _shutdown() -> None:
+        await shutdown_cache()
+
     return application