feat(plugin): 集成 WASM 插件系统到主服务并修复链路问题

- 新增 erp-plugin crate：插件管理、WASM 运行时、动态表、数据 CRUD
- 新增前端插件管理页面（PluginAdmin/PluginCRUDPage）和 API 层
- 新增插件数据迁移（plugins/plugin_entities/plugin_event_subscriptions）
- 新增权限补充迁移（为已有租户补充 plugin.admin/plugin.list 权限）
- 修复 PluginAdmin 页面 InstallOutlined 图标不存在的崩溃问题
- 修复 settings 唯一索引迁移顺序错误（先去重再建索引）
- 更新 wiki 和 CLAUDE.md 反映插件系统集成状态
- 新增 dev.ps1 一键启动脚本

apps/web/src/App.tsx

@@ -14,6 +14,8 @@ const Organizations = lazy(() => import('./pages/Organizations'));
 const Workflow = lazy(() => import('./pages/Workflow'));
 const Messages = lazy(() => import('./pages/Messages'));
 const Settings = lazy(() => import('./pages/Settings'));
+const PluginAdmin = lazy(() => import('./pages/PluginAdmin'));
+const PluginCRUDPage = lazy(() => import('./pages/PluginCRUDPage'));
 
 function PrivateRoute({ children }: { children: React.ReactNode }) {
   const isAuthenticated = useAuthStore((s) => s.isAuthenticated);
@@ -135,6 +137,8 @@ export default function App() {
                       <Route path="/workflow" element={<Workflow />} />
                       <Route path="/messages" element={<Messages />} />
                       <Route path="/settings" element={<Settings />} />
+                      <Route path="/plugins/admin" element={<PluginAdmin />} />
+                      <Route path="/plugins/:pluginId/:entityName" element={<PluginCRUDPage />} />
                     </Routes>
                   </Suspense>
                 </MainLayout>