feat(frontend): Ambient/WebGL console revamp + lint/type cleanup

Ground-up rebuild of the GMW frontend as an Ambient Field console:
- WebGL ambient background (Three.js shader, drifting motes, reduced-motion aware)
- Glassmorphism dark cyber theme across all 8 routes
- SSR page + client view split with SWR fallback; realtime via WebSocket
- Command palette (Cmd+K), chatbot FAB, guild/channel pickers
- Chart primitives: donut, radial-gauge, area-activity, sparkline, equalizer

Cleanup (review pass):
- Remove stray Puppeteer nav-test/nav-debug scripts
- Replace non-null assertions with guards (dashboard/moderation)
- Drop unused useGuilds fetches in messages/voice views
- Type implicit-any `let` declarations across pages
- Add a11y roles/labels to SVG charts and audio, tidy imports

services/frontend/src/components/shared/section.tsx

@@ -59,7 +59,9 @@ export function MetricTile({
       >
         {value}
       </div>
-      {hint && <div className="mono mt-1 text-[0.68rem] text-ink-faint">{hint}</div>}
+      {hint && (
+        <div className="mono mt-1 text-[0.68rem] text-ink-faint">{hint}</div>
+      )}
       {spark && spark.length > 1 && (
         <div className="mt-2">
           <div
@@ -68,7 +70,11 @@ export function MetricTile({
           >
             <div
               className="h-full rounded-full"
-              style={{ width: `${Math.min(100, (spark[spark.length - 1] / (Math.max(...spark) || 1)) * 100)}%`, background: toneColor, opacity: 0.7 }}
+              style={{
+                width: `${Math.min(100, (spark[spark.length - 1] / (Math.max(...spark) || 1)) * 100)}%`,
+                background: toneColor,
+                opacity: 0.7,
+              }}
             />
           </div>
         </div>