Веб-UI: темы, навигация API, статистика и доработки API

- Шапка: логотип Kubernetes, ссылка на главную, выпадающее меню API (Swagger/ReDoc/Health), переключатель светлой/тёмной темы (localStorage).
- Светлая тема в синей гамме; выравнивание кнопки темы в ряду с пилюлями.
- Дашборд: единая карточка ошибки health/stats, подсказка Docker/Podman, поле container_cli в GET /stats, total_workers_from_meta всегда число (0 без meta).
- Правки кластеров, job_store, compose, документация и частичные шаблоны.

app/api/v1/endpoints/clusters.py

@@ -17,6 +17,7 @@ from fastapi.responses import FileResponse, JSONResponse
 from core.cluster_lifecycle import (
     KindClusterError,
     cluster_summary_for_api,
+    configured_container_cli,
     create_cluster_non_interactive,
     delete_kind_cluster_and_data,
     kubectl_nodes_wide,
@@ -27,7 +28,11 @@ from core.cluster_lifecycle import (
     stop_kind_cluster_containers,
     validate_cluster_name,
 )
-from core.container_resource_stats import collect_kind_clusters_resource_stats
+from core.container_resource_stats import (
+    aggregate_kind_cluster_resources,
+    collect_kind_clusters_resource_stats,
+    running_kind_clusters_mask,
+)
 from core.job_store import (
     JobRecord,
     end_job_tracking,
@@ -39,6 +44,7 @@ from core.job_store import (
 from core.kind_guard import kind_cluster_lock
 from kind_k8s_paths import clusters_dir
 from models.schemas import (
+    AggregateResourcesSummary,
     ClusterCreateAccepted,
     ClusterCreateRequest,
     ClusterSummary,
@@ -100,7 +106,6 @@ def _stats_sync() -> StatsResponse:
         subdirs = sorted(p.name for p in cdir.iterdir() if p.is_dir() and not p.name.startswith("."))
 
     total_workers = 0
-    counted = False
     for name in subdirs:
         meta = read_meta_json(name)
         if not meta:
@@ -110,7 +115,6 @@ def _stats_sync() -> StatsResponse:
             continue
         try:
             total_workers += int(w)
-            counted = True
         except (TypeError, ValueError):
             continue
 
@@ -118,15 +122,22 @@ def _stats_sync() -> StatsResponse:
     failed = sum(1 for j in jobs if j.status == "failed")
 
     res_blocks, res_err = collect_kind_clusters_resource_stats()
+    agg: AggregateResourcesSummary
+    if res_err:
+        agg = AggregateResourcesSummary()
+    else:
+        agg = aggregate_kind_cluster_resources(res_blocks)
 
     return StatsResponse(
+        container_cli=configured_container_cli(),
         kind_clusters_count=len(kind_names),
         local_cluster_dirs_count=len(subdirs),
-        total_workers_from_meta=total_workers if counted else None,
+        total_workers_from_meta=total_workers,
         jobs_total=len(jobs),
         jobs_recent_failed=failed,
         cluster_resources=res_blocks,
         cluster_resources_error=res_err,
+        aggregate_cluster_resources=agg,
     )
 
 
@@ -163,6 +174,7 @@ async def list_clusters() -> list[ClusterSummary]:
     if cdir.is_dir():
         dir_names = {p.name for p in cdir.iterdir() if p.is_dir() and not p.name.startswith(".")}
     all_names = sorted(kind_names | dir_names)
+    running_map = running_kind_clusters_mask(all_names)
     out: list[ClusterSummary] = []
     for name in all_names:
         summary = cluster_summary_for_api(name)
@@ -170,6 +182,7 @@ async def list_clusters() -> list[ClusterSummary]:
             ClusterSummary(
                 name=str(summary["name"]),
                 registered_in_kind=bool(summary["registered_in_kind"]),
+                kind_nodes_running=bool(running_map.get(name, False)),
                 has_local_kubeconfig=bool(summary["has_local_kubeconfig"]),
                 meta=dict(summary["meta"]) if isinstance(summary.get("meta"), dict) else {},
             )