feat: 完整功能迭代 — 移动端+PC端全面优化

新增:
- 今日纪要 (6分类+彩色标签+时间选择器)
- 客户经理PC端工作台 (我的数据,5模块CRUD)
- 用户管理页 (支局长修改角色)
- 客户备注/收支费用(金额+单位)/联系人管理
- 拜访人姓名+电话字段
- 客户导入导出/旧周报导入模板下载
- 序号列+分页(25/50/100)

修复/优化:
- Hash路由→HTML5 History, Casdoor回调正常
- 时区统一为Asia/Shanghai (today_cst)
- 数据库懒加载→selectinload预加载
- 日期解析兼容ISO datetime字符串
- 文件上传定位修复 (position:relative)
- 表单button type='button'防止误提交
- 分管领导权限(只读客户档案,不可编辑)
- 侧边栏折叠+SVG图标
- 拜访方式/紧急度统一chip风格
- 时间范围统一为el-time-picker(is-range)
- 全局CSS设计变量+box-sizing修复滚动条

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

backend/app/services/excel_import.py

@@ -28,24 +28,23 @@ async def import_from_excel(db: AsyncSession, file_bytes: bytes, manager_id: uui
             if not row[0]:
                 continue
             try:
-                cust_name, visit_date_str, visit_method, time_range, content, demand, companions_str, mgr_str = \
+                cust_name, visit_date_str, visit_method, time_range, visitor_name, visitor_phone, content, demand, companions_str, mgr_str = \
                     row[0], str(row[1]) if row[1] else str(date.today()), \
                     str(row[2]) if row[2] else "上门", str(row[3]) if row[3] else "", \
                     str(row[4]) if row[4] else "", str(row[5]) if row[5] else "", \
-                    str(row[6]) if row[6] else "", str(row[7]) if row[7] else ""
+                    str(row[6]) if row[6] else "", str(row[7]) if row[7] else "", \
+                    str(row[8]) if row[8] else "", str(row[9]) if row[9] else ""
 
                 customer_id = customer_map.get(cust_name)
                 if not customer_id:
                     stats["skipped"] += 1
                     continue
 
-                # Parse date
                 try:
                     visit_date = datetime.strptime(visit_date_str[:10], "%Y-%m-%d").date()
                 except ValueError:
                     visit_date = date.today()
 
-                # Check for duplicates (same day, same person, same customer)
                 existing = await db.execute(
                     select(Visit).where(
                         Visit.visit_date == visit_date,
@@ -62,6 +61,8 @@ async def import_from_excel(db: AsyncSession, file_bytes: bytes, manager_id: uui
                     visit_date=visit_date,
                     visit_method=visit_method if visit_method in ["上门", "电话", "微信", "出差"] else "上门",
                     time_range=time_range,
+                    visitor_name=visitor_name,
+                    visitor_phone=visitor_phone,
                     communication_content=content,
                     customer_demand=demand,
                     manager_id=manager_id,