fix(ci): probe preview server on 127.0.0.1, not localhost (CAR-1218)

The lighthouse job has been failing on dev for months because wait-on
probes http://localhost:4173/, but 'localhost' resolves to ::1 (IPv6) on
the Gitea Actions runner while 'npm run preview' (vite preview) binds
127.0.0.1 (IPv4) only. The HTTP probe never connects; lighthouse never
runs.

Pin both the wait-on probe and the lighthouserc url to 127.0.0.1:4173 so
the IPv4 binding is the only thing in play. Two-line diff, scoped to
the lighthouse job and its config; no other CI step, no app/runtime
change, no quality-gate assertion change.

This is a carve-out of the workaround from CAR-938 (which disabled the
job) and supersedes the broken timeouts in CAR-937 (75700fb, a729b7e,
a9a7db6). audit/lint/test/e2e/build-and-push/deploy-dev/deploy-uat
gates are untouched.

Refs: CAR-1218, CAR-1215, CAR-938, CAR-937
Co-Authored-By: Paperclip <noreply@paperclip.ing>

.gitea/workflows/ci.yml

@@ -87,7 +87,7 @@ jobs:
       - name: Start preview server
         run: |
           npm run preview &
-          npx wait-on http://localhost:4173/ --timeout 30000
+          npx wait-on http://127.0.0.1:4173/ --timeout 30000
       - name: Run Lighthouse CI
         run: |
           CHROME_PATH=$(find /home/runner/.cache/ms-playwright -name chrome -type f 2>/dev/null | head -1)

lighthouserc.json

@@ -2,7 +2,7 @@
   "ci": {
     "collect": {
       "staticDistDir": "./dist",
-      "url": ["http://localhost:4173/"],
+      "url": ["http://127.0.0.1:4173/"],
       "numberOfRuns": 1,
       "settings": {
         "chromeFlags": ["--headless=new", "--no-sandbox", "--disable-gpu", "--disable-dev-shm-usage"],