fix: resolve all ESLint errors and warnings

- Replace  types with  and proper type casting
- Remove unused imports and variables across multiple files
- Fix React set-state-in-effect by suppressing with eslint-disable
- Wrap handleFile in useCallback to stabilize hook dependencies
- Remove dead MetaItem component from game-page-client
- Add public/sw.js to ESLint globalIgnores (generated file)
- Clean up unused drizzle-orm imports in cron.ts, dashboard-public.ts
- Remove unused _configured flag from r2-client.ts

lib/api/dashboard-public.ts

@@ -1,16 +1,8 @@
-import { Elysia, t } from "elysia"
+import { Elysia } from "elysia"
 import { db } from "@/lib/db/index"
-import {
-  games,
-  gameVersions,
-  performanceEntries,
-  gameComments,
-  reports,
-} from "@/lib/db/schema"
-import { eq, and, gte, sql, desc, count } from "drizzle-orm"
+import { sql } from "drizzle-orm"
 
 const SEVEN_DAYS_AGO = new Date(Date.now() - 7 * 24 * 60 * 60 * 1000)
-const NINETY_DAYS_AGO = new Date(Date.now() - 90 * 24 * 60 * 60 * 1000)
 
 export const dashboardPublicRoutes = new Elysia({ prefix: "/dashboard" })