chore: biome lint cleanup — formatting, unused imports, exhaustive-deps fixes

- Backend: fix redis-bridge.ts import formatting
- Frontend: fix formatting in messages/view, recordings/view, ambient-canvas, voice-stage
- Frontend: remove unused imports/vars in EditHistory, ambient-canvas
- Frontend: fix import sorting in LiveModerationFeed
- Frontend: suppress caller-controlled exhaustive-deps in use-gsap-animation
- All services: lint clean, typecheck pass, build pass
- Backend e2e tests excluded (require live server, expected 404s)

services/frontend/src/hooks/use-gsap-animation.ts

@@ -67,6 +67,7 @@ export function useStaggerReveal<T extends HTMLElement = HTMLDivElement>(
       });
     };
     // eslint-disable-next-line react-hooks/exhaustive-deps
+    // biome-ignore lint/correctness/useExhaustiveDependencies: caller-controlled deps
   }, options?.dependencies ?? []);
 
   return containerRef;