feat: 权限与日志治理完善，MinIO 独立部署与 tiktoken 离线打包适配

- 后端：强化平台/审批/资源/系统接口权限校验与操作日志，更新权限设计文档与测试用例
- 存储：新增 MinIO 独立部署适配（端口 19000/19001），外部端点与 host-gateway 互通
- 离线：打包 tiktoken cl100k_base 词表进镜像，避免无网环境联网下载
- 其他：算力节点接口微调，前端微调创建页小修，忽略 MinIO 运行时数据

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

backend/app/api/v1/endpoints/health.py

@@ -2,6 +2,8 @@
 
 from app.core.logging import get_logger
 from app.db.platform_store import get_platform_store
+from app.core.config import get_settings
+from app.modules.storage.minio_store import ObjectStorageError, get_object_storage
 
 router = APIRouter()
 logger = get_logger(__name__)
@@ -9,10 +11,30 @@ logger = get_logger(__name__)
 
 @router.get("/health")
 async def health_check() -> dict[str, object]:
-    logger.info("health check requested")
+    # Health endpoints are called frequently by Docker and the frontend.
+    # Keep failures visible without emitting one INFO line per probe.
+    logger.debug("health check requested")
+    storage_status: dict[str, object] = {"enabled": get_settings().minio_enabled, "status": "disabled"}
+    if get_settings().minio_enabled:
+        try:
+            get_object_storage().ensure_bucket()
+            storage_status = {
+                "enabled": True,
+                "status": "ready",
+                "endpoint": get_settings().minio_endpoint,
+                "bucket": get_settings().minio_bucket,
+            }
+        except (ObjectStorageError, OSError) as exc:
+            logger.warning("MinIO health check failed: %s", exc)
+            storage_status = {
+                "enabled": True,
+                "status": "unavailable",
+                "endpoint": get_settings().minio_endpoint,
+                "error": str(exc),
+            }
     return {
         "code": 0,
         "message": "ok",
-        "data": get_platform_store().health_metrics(),
+        "data": {**get_platform_store().health_metrics(), "storage": storage_status},
     }