refactor(proxy): 🔨 remove debug print statement for credentials

The debug print statement that was logging credential summaries to the console has been commented out. This removes unnecessary console output in the proxy application while keeping the credential loading logic intact.

src/proxy_app/main.py

@@ -500,10 +500,10 @@ async def lifespan(app: FastAPI):
     )
     
     # Log loaded credentials summary (compact, always visible for deployment verification)
-    _api_summary = ', '.join([f"{p}:{len(c)}" for p, c in api_keys.items()]) if api_keys else "none"
-    _oauth_summary = ', '.join([f"{p}:{len(c)}" for p, c in oauth_credentials.items()]) if oauth_credentials else "none"
-    _total_summary = ', '.join([f"{p}:{len(c)}" for p, c in client.all_credentials.items()])
-    print(f"🔑 Credentials loaded: {_total_summary} (API: {_api_summary} | OAuth: {_oauth_summary})")
+    #_api_summary = ', '.join([f"{p}:{len(c)}" for p, c in api_keys.items()]) if api_keys else "none"
+    #_oauth_summary = ', '.join([f"{p}:{len(c)}" for p, c in oauth_credentials.items()]) if oauth_credentials else "none"
+    #_total_summary = ', '.join([f"{p}:{len(c)}" for p, c in client.all_credentials.items()])
+    #print(f"🔑 Credentials loaded: {_total_summary} (API: {_api_summary} | OAuth: {_oauth_summary})")
     client.background_refresher.start() # Start the background task
     app.state.rotating_client = client