fix: resolve architecture disconnects and codebase weaknesses

- fix(backend): replace raw .parse() with proper loadConfig() + ConfigError
- fix(gateway): connect voice recording uploader to EventBroadcaster
- fix(gateway): remove dead globalThis.moderationBroadcaster path in AI analyzer
- fix(gateway): eliminate audioStream race condition by attaching handlers before pipe
- fix(gateway): enable inlineVolume by default for setMusicVolume to work
- fix(gateway): reuse persistent redisPub for command replies (no new connection per cmd)
- fix(frontend): add missing voice_active_user/voice_pcm_data to WsEventMap
- fix(frontend): correct onAttachmentUploaded handler signature to accept data
- chore: move @types/pg from dependencies to devDependencies
- chore: translate remaining Indonesian comments to English
- chore: remove stale P3 TODO comment

services/discord-gateway/src/modules/message-capture/messageStore.ts

@@ -257,7 +257,6 @@ export async function getMessagesByChannel(
       .select()
       .from(messagesTable)
       .where(and(...conditions))
-      // P3: add secondary sort by id for stable pagination
       .orderBy(desc(messagesTable.created_at), desc(messagesTable.id))
       .limit(limit)
       .offset(offset);