fix: resolve architecture disconnects and codebase weaknesses

- Standardize MessageRecord types — single source of truth from @bete/shared
- Clean up config: remove unused GUILD_ID/TEXT_GUILD_ID/TEXT_CHANNEL_ID, fix WEBSERVER_PORT default (3001), remove default admin password
- Move mascot_chat_messages table to Drizzle schema with proper migration
- Remove runtime DDL (CREATE TABLE IF NOT EXISTS) from mascot-chat repository
- Remove phantom analytics/ module from documentation
- Add better-sqlite3 dependency to root devDependencies
- Replace 'as any' casts with proper type assertions across AI moderation
- Add error logging to silent catch blocks in LLM client
- Apply Biome formatting and import organization

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

CLAUDE.md

@@ -111,7 +111,6 @@ Express 5 + Helmet HTTP server with WebSocket (ws) on port 3001 (default).
 - `recordings/` — Voice recording listing
 - `ui-state/` — Persistent UI state for dashboard
 - `config/` — App config endpoint
-- `analytics/` — Analytics (schema defined)
 
 **WebSocket events (outbound to frontend):**
 - `message_created`, `message_updated`, `message_deleted`, `message_analyzed`
@@ -222,7 +221,6 @@ React 19 + Vite 8 + Tailwind CSS 4 + TypeScript dashboard.
     - Hooks: `useVoiceControl`, `useMediaControl`
   - `messages/` — Message list with filters
     - Hooks: `useMessages`
-  - `analytics/` — Analytics (hook scaffolded)
 - `shared/`
   - `api/client.ts` — All HTTP API calls + types
   - `ws/socket.ts` — WebSocket singleton with `useDashboardSocket` hook