智教助手平台：完整初始化

- 前端：Vue3 + TS + Element Plus，24 个页面路由（课件/组题/教案/动画/思维导图/作文批改/命题/课堂/资源/社区等）
- 后端：FastAPI + SQLAlchemy + SQLite，17 个路由模块，AI 服务层含降级模板
- AI：glm-5.x 推理模型已禁用思维链，确保输出真实内容
- 修复：ai_service 两处请求体注入 enable_thinking/thinking disabled
- 测试账号：13900999999 / test1234

frontend/src/stores/user.ts

@@ -0,0 +1,71 @@
+import { defineStore } from 'pinia'
+import { ref } from 'vue'
+import { getProfile } from '@/api'
+
+export const useUserStore = defineStore('user', () => {
+  const user = ref<any>(null)
+  const token = ref(localStorage.getItem('access_token') || '')
+
+  function setToken(newToken: string) {
+    if (!newToken) return
+    token.value = newToken
+    localStorage.setItem('access_token', newToken)
+  }
+
+  function setTokens(accessToken: string, refreshToken?: string) {
+    if (!accessToken) return
+    token.value = accessToken
+    localStorage.setItem('access_token', accessToken)
+    if (refreshToken) {
+      localStorage.setItem('refresh_token', refreshToken)
+    }
+  }
+
+  function getRefreshToken(): string {
+    return localStorage.getItem('refresh_token') || ''
+  }
+
+  function clearToken() {
+    token.value = ''
+    user.value = null
+    localStorage.removeItem('access_token')
+    localStorage.removeItem('refresh_token')
+  }
+
+  async function fetchProfile() {
+    if (!token.value && localStorage.getItem('access_token')) {
+      token.value = localStorage.getItem('access_token') || ''
+    }
+    if (!token.value) {
+      user.value = null
+      return null
+    }
+    try {
+      user.value = await getProfile()
+      return user.value
+    } catch (error) {
+      clearToken()
+      throw error
+    }
+  }
+
+  async function refreshCreditsFromResponse(response: any) {
+    const credits = response?.credits
+    const balance = typeof credits?.balance === 'number' ? credits.balance : undefined
+    if (typeof balance !== 'number') return
+    if (!user.value) {
+      await fetchProfile().catch(() => undefined)
+    }
+    user.value = {
+      ...(user.value || {}),
+      credits: balance,
+      total_credits_used: typeof credits?.cost === 'number'
+        ? Number(user.value?.total_credits_used || 0) + credits.cost
+        : user.value?.total_credits_used,
+    }
+  }
+
+  const isLoggedIn = () => !!token.value
+
+  return { user, token, setToken, setTokens, getRefreshToken, clearToken, fetchProfile, refreshCreditsFromResponse, isLoggedIn }
+})