Hosted rooms phase 2: moderators, bans, privacy, invites, images, favorites, ratings, recent rooms, occupancy watch

Moderators (up to 20 IMVU accounts, set by ID or name) and the owner account boot
and ban over realtime (room.boot); bans are listed and lifted over REST. Private
rooms are unlisted and joined by the owner, moderators and holders of an accepted
invite (room.invite / room.invited / room.invite_reply / room.invite_answer).
Room images (PNG/JPEG by magic bytes, up to 512 KB) are stored in the database
and served with cache headers. Per-person favorites, ratings and recent rooms.
room.watch pushes room.occupancy; participants carry their IMVU name, and
GET .../participants lists them. Contract in docs/hosted-rooms.md, "Phase 2".

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/db/src/index.ts

@@ -11,7 +11,7 @@ import { fileURLToPath } from "node:url";
 import * as schema from "./schema";
 
 export { schema };
-export type { DecorationItem, FileEntry, ParentInfo, SceneItem } from "./schema";
+export type { DecorationItem, FileEntry, ParentInfo, RoomModerator, SceneItem } from "./schema";
 export * from "drizzle-orm";
 
 const migrationsFolder = fileURLToPath(new URL("../drizzle", import.meta.url));