refactor: large codebase cleanup - consolidate schemas, migrate to Drizzle ORM, extract frontend components, modernize Docker builds

- Consolidate all DB schema definitions into packages/shared as single source of truth
- Migrate backend from raw SQL to Drizzle ORM across all modules
- Extract frontend inline UI into separate component files
- Refactor discord-gateway circuitBreaker into conversationState + moderationState
- Convert messageStore to Proxy singleton pattern
- Add validateBody/validateQuery middleware + Zod schemas for API endpoints
- Modernize Docker builds with multi-stage + pnpm deploy
- Migrate CI/CD from deployment to image-based pipeline
- Remove 60+ unused/dead files (~15K lines)
- Update color scheme from sky-blue to teal-cyan
- Move DB connection management to @bete/shared/database

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

services/frontend/src/hooks/use-recordings.ts

@@ -3,14 +3,7 @@ import { useEffect } from "react";
 
 import { recordingsApi } from "@/lib/api";
 import type { VoiceRecording } from "@/lib/types";
-import type { WsEventType } from "@/lib/ws/types";
-
-type WsHook = {
-  on: <E extends WsEventType>(
-    eventType: E,
-    handler: (data: unknown) => void,
-  ) => () => void;
-};
+import type { WsHook } from "@/lib/ws-hook";
 
 export function useRecordings() {
   return useQuery<VoiceRecording[]>({