fix: replace ts-node with tsx for worker scripts

TypeScript 7's CommonJS export no longer populates ts.sys, which
ts-node's config loader depends on, breaking `npm run worker` with
a TypeError. tsx (esbuild-based) doesn't rely on that API and
natively resolves tsconfig.json path aliases, so tsconfig-paths is
also no longer needed.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

package.json

@@ -11,9 +11,9 @@
     "build": "next build",
     "start": "next start",
     "test": "jest",
-    "worker": "ts-node -r tsconfig-paths/register worker/index.ts",
-    "worker:cleanup": "ts-node -r tsconfig-paths/register worker/cron-cleanup.ts",
-    "worker:check": "ts-node -r tsconfig-paths/register worker/cron-check.ts",
+    "worker": "tsx worker/index.ts",
+    "worker:cleanup": "tsx worker/cron-cleanup.ts",
+    "worker:check": "tsx worker/cron-check.ts",
     "db:migrate": "prisma migrate dev",
     "db:generate": "prisma generate"
   },
@@ -55,8 +55,7 @@
     "jest": "^30.4.2",
     "jest-environment-node": "^30.4.1",
     "tailwindcss": "^4.3.3",
-    "ts-node": "^10.9.2",
-    "tsconfig-paths": "^4.2.0",
+    "tsx": "^4.23.12",
     "typescript": "^7.0.2"
   }
 }