功能(提醒)：统一项目提醒中心与桌面通知链路

增加通用提醒状态、数据库迁移和定时同步，覆盖风险时效、文件回执、项目里程碑、访视窗口与协作申请。

新增网页端和桌面端提醒中心、真实投递诊断与固定隐私通知正文，并补齐登录来源聚合、测试和说明文档。

frontend/src/components/ApiEndpointPermissions.test.ts

@@ -260,6 +260,9 @@ describe("ApiEndpointPermissions.vue", () => {
     ]);
     expect((wrapper.vm as any).filteredOperations.filter((operation: any) => operation.operation_key === "subject_aes:read")).toHaveLength(2);
     expect((wrapper.vm as any).filteredOperations.filter((operation: any) => operation.operation_key === "subject_pds:list")).toHaveLength(2);
+    expect((wrapper.vm as any).displayOperations).toHaveLength(5);
+    expect((wrapper.vm as any).totalPermissionCount).toBe(3);
+    expect((wrapper.vm as any).filteredPermissionCount).toBe(3);
   });
 
   it("keeps contract fee permissions as one module section", () => {

frontend/src/components/ApiEndpointPermissions.vue

@@ -6,7 +6,7 @@
           <span class="toolbar-title">有效权限矩阵</span>
           <el-tag size="small" effect="plain" type="info">只读</el-tag>
         </div>
-        <span class="toolbar-result">显示 {{ filteredOperations.length }} / {{ displayOperations.length }} 项权限</span>
+        <span class="toolbar-result">显示 {{ filteredPermissionCount }} / {{ totalPermissionCount }} 项权限</span>
       </div>
       <div class="toolbar-filters">
         <el-input
@@ -266,6 +266,12 @@ const filteredOperations = computed(() => {
   return filtered;
 });
 
+const countUniquePermissions = (rows: DisplayOperation[]): number =>
+  new Set(rows.map((operation) => operation.operation_key)).size;
+
+const totalPermissionCount = computed(() => countUniquePermissions(displayOperations.value));
+const filteredPermissionCount = computed(() => countUniquePermissions(filteredOperations.value));
+
 // 权限类型、模块与模块细分列合并行
 const spanMethod = ({ row, rowIndex, columnIndex }: { row: DisplayOperation; rowIndex: number; column: any; columnIndex: number }) => {
   if (columnIndex === 0) {

frontend/src/components/DesktopLayout.vue

@@ -296,6 +296,18 @@
                   <div v-else class="reminder-empty">
                     {{ headerRemindersLoading ? TEXT.common.loading : TEXT.common.labels.projectRemindersEmpty }}
                   </div>
+                  <div class="reminder-actions">
+                    <el-dropdown-item command="notification:center" class="reminder-footer">
+                      查看全部提醒
+                    </el-dropdown-item>
+                    <el-dropdown-item
+                      v-if="headerReminderTotal > 0"
+                      command="notification:read-all"
+                      class="reminder-footer is-secondary"
+                    >
+                      全部已读
+                    </el-dropdown-item>
+                  </div>
                 </div>
               </el-dropdown-menu>
             </template>
@@ -2148,6 +2160,28 @@ useDesktopShortcuts(
   text-align: center;
 }
 
+.reminder-actions {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  margin-top: 6px;
+  border-top: 1px solid rgba(138, 155, 176, 0.2);
+}
+
+.reminder-actions .reminder-footer:only-child {
+  grid-column: 1 / -1;
+}
+
+.reminder-footer {
+  justify-content: center;
+  color: #2f6fed !important;
+  font-size: 12px;
+  font-weight: 700;
+}
+
+.reminder-footer.is-secondary {
+  color: #718096 !important;
+}
+
 .activity-button {
   position: relative;
 }

frontend/src/components/Layout.desktop.test.ts

@@ -15,6 +15,7 @@ const readTauriLibSource = () => readSource(resolve(__dirname, "../../src-tauri/
 const readDesktopPreferencesSource = () => readSource(resolve(__dirname, "../views/DesktopPreferences.vue"));
 const readDesktopServerSettingsSource = () => readSource(resolve(__dirname, "../views/DesktopServerSettings.vue"));
 const readDesktopUpdateManagerSource = () => readSource(resolve(__dirname, "../session/desktopUpdateManager.ts"));
+const readDesktopNotificationManagerSource = () => readSource(resolve(__dirname, "../session/desktopNotificationManager.ts"));
 const readDesktopActivityCenterSource = () => readSource(resolve(__dirname, "../session/desktopActivityCenter.ts"));
 const readProfileSettingsSource = () => readSource(resolve(__dirname, "../views/ProfileSettings.vue"));
 const readLoginSource = () => readSource(resolve(__dirname, "../views/Login.vue"));
@@ -484,9 +485,10 @@ describe("desktop layout shell", () => {
     expect(navigation).toContain("item.children?.length ? item.children : [item]");
   });
 
-  it("keeps notification and update preferences lightweight", () => {
+  it("shows the real notification delivery path and keeps native notification access constrained", () => {
     const serverSettings = readDesktopServerSettingsSource();
     const preferences = readDesktopPreferencesSource();
+    const desktopNotificationManager = readDesktopNotificationManagerSource();
     const desktopUpdateManager = readDesktopUpdateManagerSource();
     const desktopLayout = readDesktopLayoutSource();
 
@@ -503,17 +505,25 @@ describe("desktop layout shell", () => {
     expect(preferences).not.toContain("服务器连通性正常");
     expect(preferences).not.toContain("服务器连接已确认");
     expect(preferences).toContain("auth.logout({ rememberCurrentStudy: false })");
-    expect(preferences).not.toContain("系统通知已开启");
-    expect(preferences).not.toContain("系统通知已关闭");
-    expect(preferences).not.toContain("已授权");
-    expect(preferences).toContain("showNotificationPermissionTag");
+    expect(preferences).toContain("系统权限：{{ notificationPermissionText }}");
+    expect(preferences).toContain("服务端订阅");
+    expect(preferences).toContain("真实业务路径");
+    expect(preferences).toContain("授权并开启");
+    expect(preferences).toContain("重新检测权限");
+    expect(preferences).toContain("立即检查业务提醒");
+    expect(preferences).toContain("系统设置 → 通知 → CTMS");
+    expect(preferences).toContain("设置 → 系统 → 通知 → CTMS");
     expect(preferences).toContain("showSystemNotificationProbe");
     expect(preferences).toContain("sendDesktopNotificationTest");
-    expect(preferences).toContain("测试通知");
-    expect(preferences).not.toContain("通知诊断");
+    expect(preferences).toContain("发送测试通知");
+    expect(preferences).toContain("openProjectNotificationCenter");
+    expect(preferences).toContain("listenDesktopNotificationStatus");
     expect(preferences).not.toContain("更新诊断");
-    expect(preferences).not.toContain("listenDesktopNotificationDiagnostics");
     expect(preferences).not.toContain(["@tauri-apps", "plugin-notification"].join("/"));
+    expect(desktopNotificationManager).toContain("claimDesktopNotifications");
+    expect(desktopNotificationManager).toContain("acknowledgeDesktopNotifications");
+    expect(desktopNotificationManager).toContain('state: "permission-required"');
+    expect(desktopNotificationManager).toContain('state: deliveredIds.length ? "delivered" : "ready"');
     expect(preferences).toContain("listenDesktopUpdateStatus");
     expect(preferences).toContain("promptForPendingDesktopUpdate");
     expect(preferences).toContain("当前已是最新版本");
@@ -603,6 +613,10 @@ describe("desktop layout shell", () => {
     expect(styles).toContain(".desktop-workbench .desktop-route-shell .el-table td.el-table__cell");
     expect(styles).toContain("padding: 7px 10px;");
     expect(styles).toContain(".desktop-workbench .desktop-route-shell .el-pagination");
+    expect(styles).toContain(".desktop-workbench .desktop-route-shell .el-radio-button__inner");
+    expect(styles).toContain("display: inline-flex;");
+    expect(styles).toContain("align-items: center;");
+    expect(styles).toContain("justify-content: center;");
     expect(styles).toContain(".desktop-workbench .desktop-route-shell .el-drawer__body");
     expect(styles).toContain(":root[data-ctms-theme=\"dark\"] .desktop-workbench .desktop-route-shell .hero-stat");
   });

frontend/src/components/WebLayout.vue

@@ -289,7 +289,18 @@
                   <div v-else class="header-reminder-empty">
                     {{ headerRemindersLoading ? TEXT.common.loading : TEXT.common.labels.projectRemindersEmpty }}
                   </div>
-
+                  <div class="header-reminder-actions">
+                    <el-dropdown-item command="notification:center" class="header-reminder-footer">
+                      查看全部提醒
+                    </el-dropdown-item>
+                    <el-dropdown-item
+                      v-if="headerReminderTotal > 0"
+                      command="notification:read-all"
+                      class="header-reminder-footer is-secondary"
+                    >
+                      全部已读
+                    </el-dropdown-item>
+                  </div>
                 </div>
               </el-dropdown-menu>
             </template>
@@ -1848,6 +1859,21 @@ useDesktopShortcuts(
   font-weight: 600;
 }
 
+.header-reminder-actions {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  margin-top: 6px;
+  border-top: 1px solid rgba(148, 163, 184, 0.2);
+}
+
+.header-reminder-actions .header-reminder-footer:only-child {
+  grid-column: 1 / -1;
+}
+
+.header-reminder-footer.is-secondary {
+  color: #64748b !important;
+}
+
 .collapse-btn {
   border: 1px solid transparent;
   color: var(--ctms-text-secondary);