feat: 动态插件系统 M0-M3（两层能力模型 + pi 原生契约 + Obsidian 式 SDK）

apps/desktop/src/main/ipc.ts

@@ -2,6 +2,7 @@ import { app, BrowserWindow, dialog, ipcMain, shell } from 'electron'
 import { mkdirSync } from 'node:fs'
 import { userInfo } from 'node:os'
 import { AgentService } from './pi/agent-service'
+import { getPluginHost } from './plugins/plugin-host'
 import { getBrowserController } from './browser/browser-controller'
 import { detectBrowserSources, importBrowserProfile } from './browser/browser-profile'
 
@@ -380,5 +381,29 @@ export function registerIpc(): AgentService {
     return browserPass(() => importBrowserProfile(sourceId, profileDir))
   })
 
+  // ---- 插件系统 ----
+  void app.whenReady().then(() => {
+    // 插件启停/重载会重建 agent 运行时（extensionFactories 重跑）
+    getPluginHost().setRuntimeRebuilder(() => service.rebuildRuntime())
+  })
+
+  ipcMain.handle('plugins:list', () => getPluginHost().list())
+  ipcMain.handle('plugins:uiState', () => getPluginHost().uiState())
+  ipcMain.handle('plugins:setEnabled', (_e, id: unknown, enabled: unknown) => {
+    if (typeof id !== 'string' || typeof enabled !== 'boolean') throw new Error('invalid plugin toggle')
+    return getPluginHost().setEnabled(id, enabled)
+  })
+  ipcMain.handle('plugins:reload', () => getPluginHost().reload())
+  ipcMain.handle('plugins:openView', (_e, view: unknown, params: unknown) => {
+    if (typeof view !== 'string' || !view) throw new Error('invalid view')
+    getPluginHost().openView(view, params)
+  })
+  // 插件页（iframe）经渲染层桥转发来的状态胶囊写请求；pluginId 键控防越权
+  ipcMain.handle('plugins:setStatus', (_e, pluginId: unknown, itemId: unknown, item: unknown) => {
+    if (typeof pluginId !== 'string' || typeof itemId !== 'string') throw new Error('invalid status item')
+    getPluginHost().setStatusItem(pluginId, itemId, (item ?? null) as never)
+    return Promise.resolve()
+  })
+
   return service
 }