refactor(logging): centralize console output

src/stores/chat/chat-machine.ts

@@ -33,7 +33,7 @@
 import { setup, assign } from "xstate";
 
 import { ChatStorage } from "@/data/storage/chat/chat_storage";
-import { formatDate, todayString } from "@/utils";
+import { formatDate, todayString, Logger } from "@/utils";
 
 
 import { ChatState, initialState } from "./chat-state";
@@ -47,6 +47,8 @@ import {
   chatWebSocketActor,
 } from "./chat-machine.actors";
 
+const log = new Logger("StoresChatChatMachine");
+
 /** 游客配额阈值（与 Dart `GuestChatQuota` 保持一致） */
 export const GuestChatQuota = {
   warningThreshold: 5,
@@ -93,7 +95,7 @@ export const chatMachine = setup({
 
       ChatStorage.getInstance().setGuestTotalQuota(newTotal);
 
-      console.log("[chat-machine] appendUserMessage", {
+      log.debug("[chat-machine] appendUserMessage", {
         contentLength: event.content.length,
         contentPreview: event.content.slice(0, 50),
         quotaMode: context.wsConnected ? "ws (no decrement)" : "http (decrement)",
@@ -134,7 +136,7 @@ export const chatMachine = setup({
 
       void ChatStorage.getInstance().setGuestTotalQuota(newTotal);
       
-      console.log("[chat-machine] appendUserImage", {
+      log.debug("[chat-machine] appendUserImage", {
         oldMessagesCount: context.messages.length,
         wsConnected: context.wsConnected,
         quotaMode: context.wsConnected ? "ws (no decrement)" : "http (decrement)",
@@ -177,7 +179,7 @@ export const chatMachine = setup({
           };
         }
       }
-      console.log("[chat-machine] appendOrUpdateAISentence", {
+      log.debug("[chat-machine] appendOrUpdateAISentence", {
         index: event.index,
         total: event.total,
         done: event.done,