ci: use Coolify webhook URL from variable with auth header

Set COOLIFY_WEBHOOK variable to the full deploy URL from Coolify.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -55,10 +55,8 @@ jobs:
 
       - name: Trigger Coolify deploy
         run: |
-          curl -s -X POST "${{ vars.COOLIFY_URL }}/api/v1/deploy" \
-            -H "Authorization: Bearer ${{ secrets.COOLIFY_TOKEN }}" \
-            -H "Content-Type: application/json" \
-            -d '{"uuid":"${{ vars.COOLIFY_APP_UUID }}"}'
+          curl -s -X GET "${{ vars.COOLIFY_WEBHOOK }}" \
+            -H "Authorization: Bearer ${{ secrets.COOLIFY_TOKEN }}"
 
   e2e:
     if: false  # E2E tests need rewrite: auth moved from local login to OIDC (Logto). Tests still expect username/password flow.