fix: 修复多个关键问题

- 修复前端路由守卫：未登录时不显示提示，直接跳转登录页
- 修复API拦截器：401错误不显示提示，直接跳转
- 增强验证码显示：图片尺寸从120x40增加到200x80
- 增大验证码字体：从28号增加到48号
- 优化验证码字符：排除易混淆的0和1
- 减少干扰线：从5条减少到3条，添加背景色优化
- 增强登录API日志：添加详细的调试日志
- 增强验证码生成和验证日志
- 优化异常处理和错误追踪

影响文件：
- src/router/index.ts
- src/api/request.ts
- app/services/auth_service.py
- app/api/v1/auth.py
- app/schemas/user.py

测试状态：
- 前端构建通过
- 后端语法检查通过
- 验证码显示效果优化完成

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

app/schemas/recovery.py

@@ -0,0 +1,118 @@
+"""
+资产回收相关的Pydantic Schema
+"""
+from typing import Optional, List, Dict, Any
+from datetime import datetime
+from pydantic import BaseModel, Field
+
+
+# ===== 回收单Schema =====
+
+class AssetRecoveryOrderBase(BaseModel):
+    """回收单基础Schema"""
+    recovery_type: str = Field(..., description="回收类型(user=使用人回收/org=机构回收/scrap=报废回收)")
+    title: str = Field(..., min_length=1, max_length=200, description="标题")
+    remark: Optional[str] = Field(None, description="备注")
+
+
+class AssetRecoveryOrderCreate(AssetRecoveryOrderBase):
+    """创建回收单Schema"""
+    asset_ids: List[int] = Field(..., min_items=1, description="资产ID列表")
+
+
+class AssetRecoveryOrderUpdate(BaseModel):
+    """更新回收单Schema"""
+    title: Optional[str] = Field(None, min_length=1, max_length=200, description="标题")
+    remark: Optional[str] = Field(None, description="备注")
+
+
+class AssetRecoveryOrderInDB(BaseModel):
+    """数据库中的回收单Schema"""
+    id: int
+    order_code: str
+    recovery_type: str
+    title: str
+    asset_count: int
+    apply_user_id: int
+    apply_time: datetime
+    approval_status: str
+    approval_user_id: Optional[int]
+    approval_time: Optional[datetime]
+    approval_remark: Optional[str]
+    execute_status: str
+    execute_user_id: Optional[int]
+    execute_time: Optional[datetime]
+    remark: Optional[str]
+    created_at: datetime
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class AssetRecoveryOrderResponse(AssetRecoveryOrderInDB):
+    """回收单响应Schema"""
+    pass
+
+
+class AssetRecoveryOrderWithRelations(AssetRecoveryOrderResponse):
+    """带关联信息的回收单响应Schema"""
+    apply_user: Optional[Dict[str, Any]] = None
+    approval_user: Optional[Dict[str, Any]] = None
+    execute_user: Optional[Dict[str, Any]] = None
+    items: Optional[List[Dict[str, Any]]] = None
+
+
+class AssetRecoveryOrderQueryParams(BaseModel):
+    """回收单查询参数"""
+    recovery_type: Optional[str] = Field(None, description="回收类型")
+    approval_status: Optional[str] = Field(None, description="审批状态")
+    execute_status: Optional[str] = Field(None, description="执行状态")
+    keyword: Optional[str] = Field(None, description="搜索关键词")
+    page: int = Field(default=1, ge=1, description="页码")
+    page_size: int = Field(default=20, ge=1, le=100, description="每页数量")
+
+
+class AssetRecoveryOrderListResponse(BaseModel):
+    """回收单列表响应Schema"""
+    total: int
+    page: int
+    page_size: int
+    total_pages: int
+    items: List[AssetRecoveryOrderWithRelations]
+
+
+class AssetRecoveryStatistics(BaseModel):
+    """回收单统计Schema"""
+    total: int = Field(..., description="总数")
+    pending: int = Field(..., description="待审批数")
+    approved: int = Field(..., description="已审批数")
+    rejected: int = Field(..., description="已拒绝数")
+    executing: int = Field(..., description="执行中数")
+    completed: int = Field(..., description="已完成数")
+
+
+# ===== 回收单明细Schema =====
+
+class AssetRecoveryItemBase(BaseModel):
+    """回收单明细基础Schema"""
+    asset_id: int = Field(..., gt=0, description="资产ID")
+    remark: Optional[str] = Field(None, description="备注")
+
+
+class AssetRecoveryItemInDB(BaseModel):
+    """数据库中的回收单明细Schema"""
+    id: int
+    order_id: int
+    asset_id: int
+    asset_code: str
+    recovery_status: str
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class AssetRecoveryItemResponse(AssetRecoveryItemInDB):
+    """回收单明细响应Schema"""
+    pass