fix(hf-space): harden runtime loading and cache behavior

Exclude parakeet and wink NLP modules from Vite dep optimization to avoid transient missing optimized chunks in dev/HF environments.

Clear all browser caches when running on .hf.space and tighten control-widget drag target checks to avoid click handling edge cases.

index.html

@@ -41,13 +41,9 @@
             .then(() => {
               if (!('caches' in window)) return;
               return caches.keys()
-                .then((keys) => Promise.all(
-                  keys
-                    .filter((k) => k.startsWith('keet-'))
-                    .map((k) => caches.delete(k))
-                ));
+                .then((keys) => Promise.all(keys.map((k) => caches.delete(k))));
             })
-            .then(() => console.log('[App] SW disabled on HF Space (avoids stale chunk cache).'))
+            .then(() => console.log('[App] SW disabled on HF Space (all caches cleared to avoid stale chunks).'))
             .catch((err) => console.warn('[App] SW cleanup on HF failed:', err));
           return;
         }

src/App.tsx

@@ -160,7 +160,8 @@ const App: Component = () => {
   };
 
   const handleWidgetDragStart = (e: MouseEvent) => {
-    if ((e.target as HTMLElement).closest('button, select, input')) return;
+    const target = e.target;
+    if (target instanceof Element && target.closest('button, select, input')) return;
     e.preventDefault();
     const pos = widgetPos();
     if (!pos) return;

vite.config.js

@@ -76,7 +76,14 @@ export default defineConfig({
     },
   },
   optimizeDeps: {
-    exclude: ['audio-processor.js'],
+    // Keep these ESM libs out of Vite's dev pre-bundler to avoid
+    // intermittent missing-chunk warnings in node_modules/.vite/deps.
+    exclude: [
+      'audio-processor.js',
+      'parakeet.js',
+      'wink-nlp',
+      'wink-eng-lite-web-model',
+    ],
   },
   worker: {
     format: 'es',