test(gateway): cross-user-isolation cleanup honors dbAvailable (#1275)

The no-database skip path failed the file: createDb connects lazily, so
on an unreachable database 'handle' is set while nothing was inserted;
afterAll checked only 'handle' and its cleanup deletes threw
ECONNREFUSED, failing the suite despite 28/28 tests being skipped.

Caught live by the publish pipeline's verify gate (pipeline 2486,
first gated publish after #1277): the gate's no-DATABASE_URL PGlite
path runs 'pnpm test' without ci-postgres, cross-user-isolation hit
its dead-cleanup path, verify correctly failed closed and blocked all
publish steps (build/publish-npm/build-gateway skipped).

Verified both paths: DATABASE_URL=dead-port -> 28 skipped, file
PASSES (was the failure); live 5433 -> 28 passed. Sibling suites
checked: connector-lease.postgres.integration skips at describe level
(describe.skipIf) so its afterAll never runs unguarded.

.woodpecker/ci-image.yml

@@ -22,9 +22,9 @@ steps:
     image: gcr.io/kaniko-project/executor:debug
     environment:
       REGISTRY_USER:
-        from_secret: REGISTRY_USERNAME
+        from_secret: gitea_username
       REGISTRY_PASS:
-        from_secret: REGISTRY_PASSWORD
+        from_secret: gitea_password
       CI_COMMIT_BRANCH: ${CI_COMMIT_BRANCH}
       CI_COMMIT_TAG: ${CI_COMMIT_TAG}
       CI_COMMIT_SHA: ${CI_COMMIT_SHA}

.woodpecker/publish.yml

@@ -270,9 +270,9 @@ steps:
     when: *image_build_when
     environment:
       REGISTRY_USER:
-        from_secret: REGISTRY_USERNAME
+        from_secret: gitea_username
       REGISTRY_PASS:
-        from_secret: REGISTRY_PASSWORD
+        from_secret: gitea_password
       CI_COMMIT_BRANCH: ${CI_COMMIT_BRANCH}
       CI_COMMIT_TAG: ${CI_COMMIT_TAG}
       CI_COMMIT_SHA: ${CI_COMMIT_SHA}
@@ -306,9 +306,9 @@ steps:
     when: *main_image_build_when
     environment:
       REGISTRY_USER:
-        from_secret: REGISTRY_USERNAME
+        from_secret: gitea_username
       REGISTRY_PASS:
-        from_secret: REGISTRY_PASSWORD
+        from_secret: gitea_password
       CI_COMMIT_BRANCH: ${CI_COMMIT_BRANCH}
       CI_COMMIT_TAG: ${CI_COMMIT_TAG}
       CI_COMMIT_SHA: ${CI_COMMIT_SHA}
@@ -333,9 +333,9 @@ steps:
     when: *main_image_build_when
     environment:
       REGISTRY_USER:
-        from_secret: REGISTRY_USERNAME
+        from_secret: gitea_username
       REGISTRY_PASS:
-        from_secret: REGISTRY_PASSWORD
+        from_secret: gitea_password
       CI_COMMIT_BRANCH: ${CI_COMMIT_BRANCH}
       CI_COMMIT_TAG: ${CI_COMMIT_TAG}
       CI_COMMIT_SHA: ${CI_COMMIT_SHA}