feat(chat): render commercial actions and persist greetings

src/data/repositories/chat_remote_data_source.ts

@@ -7,6 +7,8 @@ import {
   ChatHistoryResponse,
   ChatPreviewsResponse,
   ChatSendResponse,
+  OpeningMessageRequestSchema,
+  OpeningMessageResponse,
   SendMessageRequestSchema,
   UnlockHistoryRequestSchema,
   UnlockHistoryResponse,
@@ -50,6 +52,19 @@ export class ChatRemoteDataSource {
     });
   }
 
+  async saveOpeningMessage(
+    characterId: string,
+    openingMessage: string,
+    options?: ChatRequestOptions,
+  ): Promise<Result<OpeningMessageResponse>> {
+    return Result.wrap(() =>
+      this.api.saveOpeningMessage(
+        OpeningMessageRequestSchema.parse({ characterId, openingMessage }),
+        options,
+      ),
+    );
+  }
+
   async getPreviews(
     options?: ChatRequestOptions,
   ): Promise<Result<ChatPreviewsResponse>> {