feat(chat): render commercial actions and persist greetings

src/data/services/api/chat_api.ts

@@ -11,6 +11,9 @@ import {
   ChatPreviewsResponseSchema,
   ChatSendResponse,
   ChatSendResponseSchema,
+  OpeningMessageRequest,
+  OpeningMessageResponse,
+  OpeningMessageResponseSchema,
   SendMessageRequest,
   UnlockHistoryRequest,
   UnlockHistoryResponse,
@@ -39,6 +42,22 @@ export class ChatApi {
     return ChatSendResponseSchema.parse(unwrap(env) as Record<string, unknown>);
   }
 
+  /** 幂等保存当前角色的首次开场白。 */
+  async saveOpeningMessage(
+    body: OpeningMessageRequest,
+    options?: { signal?: AbortSignal },
+  ): Promise<OpeningMessageResponse> {
+    const env = await httpClient<ApiEnvelope<unknown>>(
+      ApiPath.chatOpeningMessage,
+      {
+        method: "POST",
+        body,
+        ...(options?.signal ? { signal: options.signal } : {}),
+      },
+    );
+    return OpeningMessageResponseSchema.parse(unwrap(env));
+  }
+
   /**
    * 获取聊天历史
    */