feat: migrate cron job from Vercel configuration to GitHub Actions workflow

Author: Prayag2003

.github/workflows/cron.yml

@@ -0,0 +1,16 @@
+name: Tracker Cron Job
+
+on:
+  schedule:
+    # Run every 30 minutes
+    - cron: '*/30 * * * *'
+  workflow_dispatch: # Allows manual trigger from GitHub UI
+
+jobs:
+  ping_vercel:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Ping Vercel Endpoint
+        run: |
+          # Replace YOUR_VERCEL_URL.vercel.app with the actual URL from Vercel
+          curl -f -s https://${{ secrets.VERCEL_URL }}/trigger-poll || echo 'Failed to ping Vercel, but continuing'

vercel.json

@@ -5,11 +5,5 @@
       "source": "/(.*)",
       "destination": "/tracker.js"
     }
-  ],
-  "crons": [
-    {
-      "path": "/trigger-poll",
-      "schedule": "*/30 * * * *"
-    }
   ]
 }