feat: 从JWT解析userId并添加资源点余额提醒

- 新增 jwtUtils.ts 解析JWT token获取user_id
- dialogService 从登录session获取真实userId
- 添加 credit_update 事件处理
- 余额低于5点时弹窗提醒用户充值
- settings.ts 登录URL改为可配置

src/services/dialogService.ts

@@ -12,6 +12,7 @@ import { getConfig } from '../config/settings';
 import type { DialogRequest, ToolCallRequest, AskUserEvent, RunMode, ServiceTier, ToolConfirmEvent, PlanConfirmEvent } from '../types/api';
 import { submitToolConfirm, submitAnswer, stopDialog } from './apiClient';
 import { ChatHistoryManager } from '../utils/chatHistoryManager';
+import { getUserIdFromToken } from '../utils/jwtUtils';
 
 /**
  * 消息段落类型
@@ -331,6 +332,27 @@ export class DialogSession {
 
     const config = getConfig();
 
+    // 从登录 session 获取真实 userId
+    let userId = config.userId;  // 默认值
+    try {
+      console.log('[DialogSession] 尝试获取登录 session...');
+      const session = await vscode.authentication.getSession('iccoder', [], { silent: true });
+      console.log('[DialogSession] session 结果:', session ? '已获取' : 'null/undefined');
+      if (session?.accessToken) {
+        console.log('[DialogSession] accessToken 长度:', session.accessToken.length);
+        const parsedUserId = getUserIdFromToken(session.accessToken);
+        console.log('[DialogSession] 解析的 userId:', parsedUserId);
+        if (parsedUserId) {
+          userId = parsedUserId;
+          console.log('[DialogSession] 使用真实 userId:', userId);
+        }
+      } else {
+        console.log('[DialogSession] 未获取到 accessToken，使用默认 userId:', userId);
+      }
+    } catch (error) {
+      console.warn('[DialogSession] 获取登录 session 失败:', error);
+    }
+
     // 获取压缩数据和新消息（用于后端重启后恢复）
     const historyManager = ChatHistoryManager.getInstance();
     const compactedData = await historyManager.loadCompactedData(this.taskId);
@@ -343,7 +365,7 @@ export class DialogSession {
     const request: DialogRequest = {
       taskId: this.taskId,
       message,
-      userId: config.userId,
+      userId,
       mode: mode || 'agent',
       serviceTier: serviceTier || config.serviceTier,  // 优先使用传入的参数
       compactedData: compactedData || undefined,
@@ -654,6 +676,23 @@ export class DialogSession {
         callbacks.onContextUsage?.(data);
       },
 
+      onCreditUpdate: (data) => {
+        console.log('[DialogSession] onCreditUpdate: 扣除', data.deductedCredits, '剩余', data.remainingCredits);
+        // 资源点余额低于阈值时弹窗提醒
+        const LOW_CREDIT_THRESHOLD = 5;
+        if (data.remainingCredits < LOW_CREDIT_THRESHOLD) {
+          vscode.window.showWarningMessage(
+            `资源点余额不足！当前剩余 ${data.remainingCredits.toFixed(2)} 点，请及时充值。`,
+            '去充值'
+          ).then(selection => {
+            if (selection === '去充值') {
+              // 打开充值页面
+              vscode.env.openExternal(vscode.Uri.parse('https://iccoder.com/recharge'));
+            }
+          });
+        }
+      },
+
       onOpen: () => {
         console.log('[DialogSession] SSE 连接已建立');
       },