refactor/channel & ipc (#349)

Co-authored-by: paisley <8197966+su8su@users.noreply.github.com>
Co-authored-by: zuolingxuan <zuolingxuan@bytedance.com>

src/stores/chat/store-api.ts

@@ -0,0 +1,18 @@
+import type { ChatState } from './types';
+
+export type ChatSet = (
+  partial: Partial<ChatState> | ((state: ChatState) => Partial<ChatState>),
+  replace?: false,
+) => void;
+
+export type ChatGet = () => ChatState;
+
+export type SessionHistoryActions = Pick<
+  ChatState,
+  'loadSessions' | 'switchSession' | 'newSession' | 'deleteSession' | 'cleanupEmptySession' | 'loadHistory'
+>;
+
+export type RuntimeActions = Pick<
+  ChatState,
+  'sendMessage' | 'abortRun' | 'handleChatEvent' | 'toggleThinking' | 'refresh' | 'clearError'
+>;