feat: add voice recordings feature with database integration

- Implemented PostgreSQL and SQLite schemas for voice recordings.
- Created repository functions for inserting, updating, and listing voice recordings.
- Developed uploader logic to handle file uploads and database updates.
- Added routes for accessing voice recordings via API.
- Enhanced UI state to include recordings tab.
- Introduced moderation WebSocket event for uploaded recordings.

src/moderation/types.ts

@@ -128,7 +128,8 @@ export type ModerationWsEvent =
   | { type: "message_analyzed"; data: MessageRecord }
   | { type: "attachment_created"; data: AttachmentRecord }
   | { type: "analysis_queue_status"; data: AnalysisQueueStatus }
-  | { type: "media_state"; state: MediaState };
+  | { type: "media_state"; state: MediaState }
+  | { type: "voice_recording_uploaded"; data: any };
 
 export interface AnalysisQueueStatus {
   queuedConversations: number;