feat: 模型配置支持删除，岗位行动规划对接任务系统字典与批量新增 Skill

模型管理新增 DELETE 接口与前端删除能力（支持含斜杠的模型名）；行动规划改为 9 字段 JSON，prepare 传入 taskId/字典并绑定 position-roundtable-action-create Skill。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend-web/src/core/model-management/api.ts

@@ -96,6 +96,13 @@ export async function updateManagedModel(name: string, payload: ModelSavePayload
   return response.json() as Promise<ManagedModel>;
 }
 
+export async function deleteManagedModel(name: string): Promise<void> {
+  const response = await apiFetch(`${getBackendBaseURL()}/api/admin/models/${encodeURIComponent(name)}`, {
+    method: "DELETE",
+  });
+  if (!response.ok) return readError(response, "删除模型失败");
+}
+
 export async function testManagedModel(model: ModelSavePayload): Promise<ModelConnectionTestResult> {
   const response = await apiFetch(`${getBackendBaseURL()}/api/admin/models/test`, {
     method: "POST",

frontend-web/src/core/model-management/hooks.ts

@@ -2,6 +2,7 @@ import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 
 import {
   createManagedModel,
+  deleteManagedModel,
   loadManagedModels,
   testManagedModel,
   updateManagedModel,
@@ -36,3 +37,16 @@ export function useSaveManagedModel() {
 export function useTestManagedModel() {
   return useMutation({ mutationFn: testManagedModel });
 }
+
+export function useDeleteManagedModel() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: deleteManagedModel,
+    onSuccess: async () => {
+      await Promise.all([
+        queryClient.invalidateQueries({ queryKey: MANAGED_MODELS_QUERY_KEY }),
+        queryClient.invalidateQueries({ queryKey: ["models"] }),
+      ]);
+    },
+  });
+}