chore: add buildOutput RTK filter, drop legacy cloud sync, internal cleanup

- feat(rtk): buildOutput filter + autodetect for npm/yarn/cargo logs
- chore: remove unused cloud sync module and related routes
- ui: hide deprecated providers (qwen, iflow, antigravity)
- chore: minor tray/cli/internal adjustments

src/lib/initCloudSync.js

@@ -1,31 +0,0 @@
-import initializeApp from "@/shared/services/initializeApp";
-
-// Survive Next.js HMR — module-level flag resets on reload, globalThis persists
-const g = globalThis.__cloudSyncInit ??= { initialized: false, inProgress: null };
-
-export async function ensureAppInitialized() {
-  if (g.initialized) return true;
-  if (g.inProgress) return g.inProgress;
-  g.inProgress = (async () => {
-    try {
-      await initializeApp();
-      g.initialized = true;
-    } catch (error) {
-      console.error("[ServerInit] Error initializing app:", error);
-    } finally {
-      g.inProgress = null;
-    }
-    return g.initialized;
-  })();
-  return g.inProgress;
-}
-
-// Auto-initialize at runtime only, not during next build.
-// Defer to next tick so HTTP server can accept connections before heavy init runs.
-if (process.env.NEXT_PHASE !== "phase-production-build") {
-  setImmediate(() => {
-    ensureAppInitialized().catch(console.log);
-  });
-}
-
-export default ensureAppInitialized;