fix: remove redundant workflows and fix GitHub Actions failures

  Workflow optimizations:
  - Remove CodeQL from workflow (using GitHub's default setup instead)
  - Remove Vercel deployment steps (handled by Vercel GitHub integration)
  - Rename "Build & Deploy" to "Build Test" for clarity
  - Fix invalid Vercel action SHA that caused workflow failure

  This simplifies our CI/CD pipeline by:
  1. Eliminating duplicate security scanning (CodeQL)
  2. Removing redundant deployment steps (Vercel auto-deploys)
  3. Focusing workflows on testing and validation only
  4. Letting integrations handle their specialized tasks

Author: JSONbored

.github/workflows/main.yml

@@ -83,10 +83,10 @@ jobs:
         uses: actions/dependency-review-action@4081bf99e2866ebe428fc0477b69eb4fcda7220a # v4.4.0
 
   # ===============================
-  # 🏗️ Build & Deploy
+  # 🏗️ Build Test
   # ===============================
   build:
-    name: Build & Deploy
+    name: Build Test
     runs-on: ubuntu-latest
     needs: [quality, security]
     if: github.event_name != 'schedule' && (github.ref == 'refs/heads/main' || github.event_name == 'pull_request')
@@ -110,23 +110,6 @@ jobs:
           NEXT_PUBLIC_SUPABASE_URL: ${{ secrets.NEXT_PUBLIC_SUPABASE_URL }}
           NEXT_PUBLIC_SUPABASE_ANON_KEY: ${{ secrets.NEXT_PUBLIC_SUPABASE_ANON_KEY }}
 
-      - name: Deploy to Vercel (Production)
-        if: github.ref == 'refs/heads/main' && github.event_name == 'push'
-        uses: amondnet/vercel-action@16e87c0a08142b0797e9d759f17b9b4a52c31240 # v25.2.0
-        with:
-          vercel-token: ${{ secrets.VERCEL_TOKEN }}
-          vercel-org-id: ${{ secrets.VERCEL_ORG_ID }}
-          vercel-project-id: ${{ secrets.VERCEL_PROJECT_ID }}
-          vercel-args: '--prod'
-
-      - name: Deploy to Vercel (Preview)
-        if: github.event_name == 'pull_request'
-        uses: amondnet/vercel-action@16e87c0a08142b0797e9d759f17b9b4a52c31240 # v25.2.0
-        with:
-          vercel-token: ${{ secrets.VERCEL_TOKEN }}
-          vercel-org-id: ${{ secrets.VERCEL_ORG_ID }}
-          vercel-project-id: ${{ secrets.VERCEL_PROJECT_ID }}
-
   # ===============================
   # 🔍 Airdrop Monitoring
   # ===============================