performance: db/aiohttp connection pooling

base.py

@@ -4,12 +4,23 @@ import sys
 sys.path.insert(0, ".")
 import logging
 import asyncio
+
+# Install uvloop for better async performance (2-4x speedup on I/O)
+try:
+    import uvloop
+
+    uvloop.install()
+    logging.info("uvloop installed successfully")
+except ImportError:
+    logging.warning("uvloop not available, using default asyncio event loop")
+
 from contextlib import asynccontextmanager
 from typing import Any
 from fastapi import FastAPI, Request
 from fastapi.middleware.cors import CORSMiddleware
 from scalar_fastapi import get_scalar_api_reference
 from lyric_search.sources import redis_cache
+import shared  # Shared connection pools
 
 logging.basicConfig(level=logging.INFO)
 logging.getLogger("aiosqlite").setLevel(logging.WARNING)
@@ -35,6 +46,9 @@ async def lifespan(app: FastAPI):
     uvicorn_access_logger = logging.getLogger("uvicorn.access")
     uvicorn_access_logger.disabled = True
 
+    # Initialize shared infrastructure (Redis pool, aiohttp session, SQLite pool)
+    await shared.startup()
+
     # Start Radio playlists
     if "radio" in _routes and hasattr(_routes["radio"], "on_start"):
         await _routes["radio"].on_start()
@@ -55,6 +69,9 @@ async def lifespan(app: FastAPI):
     if "trip" in _routes and hasattr(_routes["trip"], "shutdown"):
         await _routes["trip"].shutdown()
 
+    # Clean up shared infrastructure
+    await shared.shutdown()
+
     logger.info("Application shutdown complete")