feat(project): 实现任务和里程碑管理功能

- 新增项目里程碑相关API接口，包括增删改查和状态进度更新
- 新增项目任务相关API接口，支持任务列表查询及增删改查
- 在项目详情页增加任务与里程碑权限控制及操作按钮展示
- 实现任务和里程碑的新增、编辑和删除模态框及表单校验
- 支持任务优先级、状态、进度、负责人等字段的管理和展示
- 里程碑支持关键标记、计划与实际日期、交付物等信息编辑
- 任务列表以表格形式展示，支持按状态展示颜色和标签
- 里程碑时间线增加操作按钮，支持权限校验后编辑和删除
- 任务状态显示对应颜色和文本，提升用户体验
- 优化项目详情页布局，新增任务列表分区和样式调整

src/api/project.ts

@@ -441,3 +441,167 @@ export const getTaskStatus = (taskId: string) => {
     `/api/v1/project-init/task/${taskId}`
   );
 };
+
+// ==================== 里程碑管理 API ====================
+
+/** 里程碑查询参数 */
+export type MilestoneQueryParams = {
+  pageNum?: number;
+  pageSize?: number;
+  projectId?: string;
+  status?: string;
+};
+
+/** 分页查询里程碑列表 */
+export const getMilestoneList = (params?: MilestoneQueryParams) => {
+  return http.request<Result<TableDataInfo<ProjectMilestone>>>(
+    "get",
+    "/api/v1/milestone/list",
+    { params }
+  );
+};
+
+/** 根据ID查询里程碑详情 */
+export const getMilestoneById = (id: string) => {
+  return http.request<Result<ProjectMilestone>>(
+    "get",
+    `/api/v1/milestone/${id}`
+  );
+};
+
+/** 新增里程碑 */
+export const createMilestone = (data: ProjectMilestone) => {
+  return http.request<Result<string>>("post", "/api/v1/milestone", { data });
+};
+
+/** 修改里程碑 */
+export const updateMilestone = (data: ProjectMilestone) => {
+  return http.request<Result<void>>("put", "/api/v1/milestone", { data });
+};
+
+/** 删除里程碑 */
+export const deleteMilestone = (id: string) => {
+  return http.request<Result<void>>("delete", `/api/v1/milestone/${id}`);
+};
+
+/** 更新里程碑进度 */
+export const updateMilestoneProgress = (id: string, progress: number) => {
+  return http.request<Result<void>>("put", `/api/v1/milestone/${id}/progress`, {
+    params: { progress }
+  });
+};
+
+/** 更新里程碑状态 */
+export const updateMilestoneStatus = (id: string, status: string) => {
+  return http.request<Result<void>>("put", `/api/v1/milestone/${id}/status`, {
+    params: { status }
+  });
+};
+
+/** 查询已延期的关键里程碑 */
+export const getDelayedKeyMilestones = (projectId: string) => {
+  return http.request<Result<ProjectMilestone[]>>(
+    "get",
+    "/api/v1/milestone/delayed-key",
+    { params: { projectId } }
+  );
+};
+
+/** 查询即将到期的里程碑 */
+export const getUpcomingMilestones = (projectId: string, days: number = 7) => {
+  return http.request<Result<ProjectMilestone[]>>(
+    "get",
+    "/api/v1/milestone/upcoming",
+    { params: { projectId, days } }
+  );
+};
+
+/** 查询里程碑完成进度统计 */
+export const getMilestoneProgressStats = (projectId: string) => {
+  return http.request<Result<Record<string, any>>>(
+    "get",
+    "/api/v1/milestone/stats/progress",
+    { params: { projectId } }
+  );
+};
+
+// ==================== 任务管理 API ====================
+
+/** 任务查询参数 */
+export type TaskQueryParams = {
+  pageNum?: number;
+  pageSize?: number;
+  projectId?: string;
+  milestoneId?: string;
+  assigneeId?: string;
+  status?: string;
+  priority?: string;
+  keyword?: string;
+};
+
+/** 分页查询任务列表 */
+export const getTaskList = (params?: TaskQueryParams) => {
+  return http.request<Result<TableDataInfo<ProjectTask>>>(
+    "get",
+    "/api/v1/task/list",
+    { params }
+  );
+};
+
+/** 根据ID查询任务详情 */
+export const getTaskById = (id: string) => {
+  return http.request<Result<ProjectTask>>("get", `/api/v1/task/${id}`);
+};
+
+/** 新增任务 */
+export const createTask = (data: ProjectTask) => {
+  return http.request<Result<string>>("post", "/api/v1/task", { data });
+};
+
+/** 修改任务 */
+export const updateTask = (data: ProjectTask) => {
+  return http.request<Result<void>>("put", "/api/v1/task", { data });
+};
+
+/** 删除任务 */
+export const deleteTask = (id: string) => {
+  return http.request<Result<void>>("delete", `/api/v1/task/${id}`);
+};
+
+/** 查询我的待办任务 */
+export const getMyTodoTasks = (userId: string, projectId?: string) => {
+  return http.request<Result<ProjectTask[]>>("get", "/api/v1/task/my-tasks", {
+    params: { userId, projectId }
+  });
+};
+
+/** 更新任务进度 */
+export const updateTaskProgress = (id: string, progress: number) => {
+  return http.request<Result<void>>("put", `/api/v1/task/${id}/progress`, {
+    params: { progress }
+  });
+};
+
+/** 更新任务状态 */
+export const updateTaskStatus = (id: string, status: string) => {
+  return http.request<Result<void>>("put", `/api/v1/task/${id}/status`, {
+    params: { status }
+  });
+};
+
+/** 查询任务依赖关系 */
+export const getTaskDependencies = (id: string) => {
+  return http.request<Result<Record<string, any>[]>>(
+    "get",
+    `/api/v1/task/${id}/dependencies`
+  );
+};
+
+/** 统计项目任务状态分布 */
+export const getTaskStatusStats = (projectId: string) => {
+  return http.request<Result<Record<string, any>[]>>(
+    "get",
+    "/api/v1/task/stats/status",
+    { params: { projectId } }
+  );
+};