feat: 原生系统提示词只读展示、会话末尾 fork、深浅色主题

apps/desktop/src/preload/index.ts

@@ -18,6 +18,7 @@ import type {
   SessionMeta,
   SessionState,
   ThinkingLevel,
+  ThemeMode,
   WorkspaceFile,
   WorkspaceMeta
 } from '@shared/types'
@@ -76,9 +77,11 @@ const api = {
   listForkPoints: (): Promise<ForkPoint[]> => ipcRenderer.invoke('session:forkPoints'),
   navigateTree: (entryId: string, options?: NavigateTreeOptions): Promise<void> =>
     ipcRenderer.invoke('session:navigate', entryId, options),
+  forkSession: (): Promise<void> => ipcRenderer.invoke('session:fork'),
   getSettings: (): Promise<AppSettings> => ipcRenderer.invoke('settings:get'),
-  setSystemPrompt: (text: string): Promise<void> => ipcRenderer.invoke('settings:setPrompt', text),
+  getSystemPrompt: (): Promise<string> => ipcRenderer.invoke('settings:getSystemPrompt'),
   setThemeColor: (id: string): Promise<void> => ipcRenderer.invoke('settings:setTheme', id),
+  setThemeMode: (mode: ThemeMode): Promise<void> => ipcRenderer.invoke('settings:setThemeMode', mode),
   resolveApproval: (id: string, approved: boolean): Promise<void> =>
     ipcRenderer.invoke('approval:resolve', id, approved),
   onEvent: (callback: (event: AgentUiEvent) => void): (() => void) => {