feat(bat): 补全工作流校验与调度过滤

新增 parse clear-cache 和 i18n validate，补齐 schedule 的作用域过滤与单轮执行上限，并将列表过滤参数暴露给 bat-api dashboard。同步 RPC、OpenAPI、用户文档和回归测试。

Refs #43

internal/api/admin.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"io"
 	"net/http"
+	"strconv"
 	"strings"
 
 	"bat-api/internal/backendrpc"
@@ -161,7 +162,12 @@ func (s *Server) handleAdminSchedules(w http.ResponseWriter, r *http.Request) {
 		writeErrorJSON(w, http.StatusServiceUnavailable, "schedule_backend_unavailable", "Rust bat schedule backend is unavailable")
 		return
 	}
-	result, err := backend.ScheduleList(r.Context())
+	params, err := scheduleListParams(r)
+	if err != nil {
+		writeErrorJSON(w, http.StatusBadRequest, "invalid_schedule_query", err.Error())
+		return
+	}
+	result, err := backend.ScheduleList(r.Context(), params)
 	if err != nil {
 		s.writeControlBackendError(w, "schedule-list", err)
 		return
@@ -174,6 +180,22 @@ func (s *Server) handleAdminSchedules(w http.ResponseWriter, r *http.Request) {
 	writeNoStoreJSON(w, http.StatusOK, result)
 }
 
+func scheduleListParams(r *http.Request) (backendrpc.ScheduleListParams, error) {
+	query := r.URL.Query()
+	params := backendrpc.ScheduleListParams{
+		ID:    query.Get("id"),
+		Group: query.Get("group"),
+	}
+	if raw := query.Get("enabled"); raw != "" {
+		enabled, err := strconv.ParseBool(raw)
+		if err != nil {
+			return backendrpc.ScheduleListParams{}, errors.New("enabled must be a boolean")
+		}
+		params.Enabled = &enabled
+	}
+	return params, nil
+}
+
 func (s *Server) handleAdminScheduleControl(w http.ResponseWriter, r *http.Request, action string) {
 	backend, ok := s.backend.(ScheduleBackend)
 	if !ok || backend == nil {