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/app/(dashboard)/analysis/view.tsx

@@ -86,7 +86,7 @@ export function AnalysisView() {
         el.style.removeProperty("transform-origin");
       });
     };
-  }, [reactors]);
+  }, []);
 
   // Channel rows stagger slide-in — CSS animation
   useEffect(() => {
@@ -115,7 +115,7 @@ export function AnalysisView() {
         el.style.removeProperty("animation-timing-function");
       });
     };
-  }, [channels]);
+  }, []);
 
   return (
     <div className="space-y-4">

services/frontend/src/app/(dashboard)/messages/view.tsx

@@ -410,7 +410,11 @@ export function MessagesView({
                     <span className="flex items-center gap-1.5 font-mono text-xs text-ink-muted">
                       <Loader2 className="size-3.5 animate-spin text-signal" />
                       FETCHING EARLIER PACKETS...
-                      <span className="typing-dots"><span /><span /><span /></span>
+                      <span className="typing-dots">
+                        <span />
+                        <span />
+                        <span />
+                      </span>
                     </span>
                   ) : hasMore && loadedPages < MAX_OLDER_PAGES ? (
                     <button

services/frontend/src/app/(dashboard)/recordings/view.tsx

@@ -292,7 +292,11 @@ export function RecordingsView({
                 <span className="flex items-center justify-center gap-2 font-mono text-xs text-ink-muted">
                   <Loader2 className="size-4 animate-spin text-signal" />
                   LOADING EARLIER RECORDINGS...
-                  <span className="typing-dots"><span /><span /><span /></span>
+                  <span className="typing-dots">
+                    <span />
+                    <span />
+                    <span />
+                  </span>
                 </span>
               ) : hasMore && loadedPages < MAX_OLDER_PAGES ? (
                 <button