test(ci): L3 golden 进 CI(components+auth 子集,Linux 权威基线)

L3 视觉回归真进 CI(此前卡 docker daemon 未起 + dirty 纠缠;现启 Docker 落地干净子集):
- 在 ghcr.io/cirruslabs/flutter 容器重生成 components+auth 的 14 张 Linux 权威基线
  (auth_login/connect 三态/quota/smart_card;mac 渲染与 CI Linux 不一致,故钉死 Linux),
  容器内 --update-goldens 后无 flag 复跑幂等通过
- ci.yml 新增 golden job(第9个):flutter test components_golden_test + auth_redesign_golden_test
- 解耦干净:这俩只 import clean widget;stats-overhaul 的 l10n 改动纯新增(现有键未动)
  → 渲染不受影响、不裹挟 dirty;tablet/desktop-stats golden 仍耦合 stats-overhaul,待合并后并入
- docs/test-architecture.html:L3 状态更新为「已进 CI(子集)」

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -143,3 +143,20 @@ jobs:
             -v "$PWD:/repo" -w /repo \
             golang:1.25 \
             bash -c "apt-get update -qq && apt-get install -y -qq openssl curl python3 >/dev/null 2>&1 && bash scripts/e2e-smoke.sh"
+
+  # ── Job 9: Golden 视觉回归 (L3 子集:components + auth)──────────────────
+  # Linux 权威基线(scripts/update-goldens.sh 生成;mac 渲染不一致故钉死 Linux 容器)。
+  # tablet/desktop-stats golden 与 stats-overhaul 工作区耦合,待其合并后并入本 job。
+  golden:
+    name: Golden — 视觉回归 (components + auth)
+    runs-on: nas
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: flutter test golden (Linux 权威基线)
+        run: |
+          docker run --rm \
+            -v "$PWD/client:/app" -w /app \
+            ghcr.io/cirruslabs/flutter:stable \
+            bash -c "flutter pub get && flutter test test/golden/components_golden_test.dart test/golden/auth_redesign_golden_test.dart"