debug: add back job-level env secret reference to isolate the failure

.forgejo/workflows/test.yaml

@@ -13,6 +13,8 @@ concurrency:
 jobs:
   ai-credits:
     runs-on: docker-ready
+    env:
+      TEST_DATABASE_URL: ${{ secrets.TEST_DATABASE_URL }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -20,4 +22,4 @@ jobs:
           fetch-depth: 0
 
       - name: Debug echo
-        run: echo "hello from ai-credits job"
+        run: echo "hello from ai-credits job, TEST_DATABASE_URL is set = $([ -n "$TEST_DATABASE_URL" ] && echo yes || echo no)"