docs(routing): record p2-t3 remote verification

docs/EXECUTION_BOARD.md

@@ -253,6 +253,72 @@
           - 正式入口 `POST /api/routing/chat/completions` 已经可用
           - canonical shadow route + managed subscription key + real host `/v1/chat/completions` 已在正式入口下再次验证为 `200`
           - `P2-T3` 可以直接在这一入口之上补 route 健康视图与聚合状态
+      - 2026-05-29 已完成 Phase 2 / `P2-T3 route 健康视图`
+        - 提交：`2896e620 feat(routing): add route health admin view`
+        - 新增聚合状态 API：
+          - `GET /api/routing/routes/health`
+          - 可选过滤：
+            - `logical_group_id`
+            - `route_id`
+            - `status=healthy|cooldown|failing|disabled`
+        - 聚合字段首版已收口：
+          - `route_id`
+          - `route_name`
+          - `logical_group_id`
+          - `shadow_host_id`
+          - `shadow_group_id`
+          - `priority`
+          - `runtime_status`
+          - `failure_count`
+          - `cooldown_until`
+          - `cooldown_reason`
+          - `last_error_class`
+          - `last_selected_at`
+          - `last_upstream_status`
+          - `recent_failover_count`
+        - 新增管理页：
+          - `https://sub.tksea.top/portal/admin/route-health.html`
+        - 现有管理导航已接线：
+          - `admin/index.html`
+          - `admin/logical-groups.html`
+          - `admin/providers.html`
+          - `admin-batch-import.html`
+        - 本地门禁已通过：
+          - `gofmt -l .`
+          - `go vet ./...`
+          - `go test -cover ./internal/...`
+          - `go test ./tests/integration/... -count=1`
+          - `bash ./scripts/test/test_tksea_portal_assets.sh`
+          - `bash ./scripts/test/test_real_host_scripts.sh`
+        - remote43 已原位升级到 `repo HEAD = 2896e620`
+        - `http://127.0.0.1:18173/healthz` 返回 `ok`
+        - portal 已重新发布，公网健康页在线：
+          - `GET https://sub.tksea.top/portal/admin/route-health.html -> HTTP 200`
+          - 页面标题包含 `Route Health Admin`
+        - remote43 真实矩阵已通过：
+          - 临时 `logical_group_id = p2t3-health-1780033345`
+          - `primary-1780033345` 写入 cooldown：`runtime_status=cooldown`
+          - `failing-1780033345` 写入 route failure：`runtime_status=failing`
+          - `POST /api/routing/resolve`
+            - `request_id=req-p2t3-health-1780033345`
+            - 因 `primary-1780033345` 处于 `active_cooldown:degraded`
+            - 自动切到 `fallback-1780033345`
+            - `resolve.route_id=fallback-1780033345`
+            - `fallback_used=true`
+          - 再次回读 `GET /api/routing/routes/health?logical_group_id=p2t3-health-1780033345`
+            - `primary-1780033345=cooldown`
+            - `fallback-1780033345=healthy`
+            - `failing-1780033345=failing`
+            - `fallback-1780033345.last_selected_at` 已写入
+            - `fallback-1780033345.recent_failover_count=1`
+          - `GET /api/routing/logs/failovers?request_id=req-p2t3-health-1780033345&limit=5`
+            - `from_route_id=primary-1780033345`
+            - `to_route_id=fallback-1780033345`
+            - `reason=active_cooldown:degraded`
+        - 当前结论：
+          - route 健康页已经能把 `cooldown / failing / healthy / disabled` 四态聚合出来
+          - 健康页与真实 `resolve` / `failover` 日志已经对齐
+          - `P2-T4` 可以开始把这些验证步骤收敛成标准化验收矩阵与脚本
       - 2026-05-28 已完成 Phase 1 / `P1-T1 SQLite schema foundation`
         - 提交：`7f75d8a6 feat(routing): add logical group schema foundation`
         - 新 migration：`internal/store/migrations/0010_logical_groups_and_routes.sql`