chore: add UserBean for client

client/api/client_data/Chat.ts

@@ -0,0 +1,10 @@
+export default class Chat {
+    declare type: "paivate" | "group"
+    declare id: string
+    declare title?: string
+    declare avatar_file_hash?: string
+    declare user_a_id?: string
+    declare user_b_id?: string
+
+    [key: string]: unknown
+}