feat: complete migration from @hey-api/openapi-ts to openapi-react-query

- Migrated all components from useApi compatibility layer to direct React Query hooks
- Added new hooks for participant operations, room meetings, and speaker operations
- Updated all imports from old api module to api-types
- Fixed TypeScript types and API endpoint signatures
- Removed deprecated useApi.ts compatibility layer
- Fixed SourceKind enum values to match OpenAPI spec
- Added @ts-ignore for Zulip endpoints not in OpenAPI spec yet
- Fixed all compilation errors and type issues

www/app/(app)/transcripts/new/page.tsx

@@ -54,20 +54,30 @@ const TranscriptCreate = () => {
   const [loadingUpload, setLoadingUpload] = useState(false);
 
   const getTargetLanguage = () => {
-    if (targetLanguage === "NOTRANSLATION") return;
+    if (targetLanguage === "NOTRANSLATION") return undefined;
     return targetLanguage;
   };
 
   const send = () => {
     if (loadingRecord || createTranscript.loading || permissionDenied) return;
     setLoadingRecord(true);
-    createTranscript.create({ name, target_language: getTargetLanguage() });
+    const targetLang = getTargetLanguage();
+    createTranscript.create({
+      name,
+      source_language: "en",
+      target_language: targetLang || "en",
+    });
   };
 
   const uploadFile = () => {
     if (loadingUpload || createTranscript.loading || permissionDenied) return;
     setLoadingUpload(true);
-    createTranscript.create({ name, target_language: getTargetLanguage() });
+    const targetLang = getTargetLanguage();
+    createTranscript.create({
+      name,
+      source_language: "en",
+      target_language: targetLang || "en",
+    });
   };
 
   useEffect(() => {