feat: add OpenAPI support and in-process cron scheduler

- Install @elysia/openapi to auto-generate API docs at /api/openapi
- Install @elysia/cron for in-process scheduled jobs (orphan detection at 2am, storage cleanup at 3am)
- Add Scalar UI docs with 14 tag groups and Bearer JWT security scheme
- Add route-level detail annotations (tags, summaries) to all 30+ route files
- Upgrade crud-builder to accept optional tags config
- Keep HTTP cron endpoint as manual/admin fallback

lib/api/saved-games.ts

@@ -4,7 +4,7 @@ import { db } from "@/lib/db/index"
 import { savedGames, games } from "@/lib/db/schema"
 import { eq, and, sql } from "drizzle-orm"
 
-export const savedGamesRoutes = new Elysia({ prefix: "/user/me/saved-games" })
+export const savedGamesRoutes = new Elysia({ prefix: "/user/me/saved-games", detail: { tags: ["Games"] } })
   .post(
     "/",
     async ({ request, body, set }) => {