performance: db/aiohttp connection pooling

endpoints/lighting.py

@@ -24,9 +24,7 @@ import aiohttp
 from fastapi import FastAPI, Depends, HTTPException, Request
 from fastapi_throttle import RateLimiter
 from fastapi.responses import JSONResponse
-import redis
 
-from lyric_search.sources import private
 from auth.deps import get_current_user
 from dotenv import load_dotenv
 
@@ -72,10 +70,10 @@ class Lighting:
         self.util = util
         self.constants = constants
 
-        # Redis for state persistence
-        self.redis_client = redis.Redis(
-            password=private.REDIS_PW, decode_responses=True
-        )
+        # Redis for state persistence - use shared sync client
+        import shared
+
+        self.redis_client = shared.get_redis_sync_client(decode_responses=True)
         self.lighting_key = "lighting:state"
 
         # Cync configuration from environment