feat: 添加后台登录验证码、记住密码功能，优化媒体资源与前端规范

- 新增后台登录图形验证码功能，完善登录安全防护
- 新增登录rememberMe参数，控制Refresh Token的会话持久化策略
- 实现OSS私有桶媒体URL自动签名，统一处理图片资源的临时访问签名
- 新增素材库数据库表与上传API，规范媒体资源管理流程
- 统一前端UI图标使用@element-plus/icons-vue，重构布局图标组件
- 登录页新增验证码输入、刷新功能，添加账号记忆与记住密码逻辑
- 更新全套文档，补充API契约、技术决策记录与集成流程说明
- 修复多个业务页面的图标展示问题，新增认证流程相关测试用例

WonderQ-Admin/app/serializers.py

@@ -1,6 +1,8 @@
 from datetime import datetime
 from sqlalchemy.inspection import inspect
 
+from .media_urls import resolve_media_url
+
 
 def encode_value(value):
     if isinstance(value, datetime):
@@ -20,6 +22,21 @@ def model_dict(instance, include: dict[str, object] | None = None) -> dict:
     return data
 
 
+def media_model_dict(instance) -> dict:
+    return resolve_media_fields(model_dict(instance))
+
+
+def resolve_media_fields(data: dict) -> dict:
+    result = dict(data)
+    for field in ("image", "avatar", "qrImage"):
+        if field in result:
+            result[field] = resolve_media_url(result[field])
+    for field in ("gallery", "images"):
+        if field in result and isinstance(result[field], list):
+            result[field] = [resolve_media_url(value) for value in result[field]]
+    return result
+
+
 def lead_dict(lead) -> dict:
     return model_dict(
         lead,
@@ -32,7 +49,7 @@ def public_wanfa_route_dict(route) -> dict:
         "id": route.id,
         "title": route.title,
         "subtitle": route.subtitle,
-        "image": route.image,
+        "image": resolve_media_url(route.image),
         "routeCount": route.routeCount,
         "demandKeyword": route.demandKeyword,
     }
@@ -47,7 +64,7 @@ def public_wanfa_category_dict(category) -> dict:
 
 
 def detail_record_dict(detail) -> dict:
-    return model_dict(detail)
+    return media_model_dict(detail)
 
 
 def public_detail_dict(detail, concierge_advisor=None) -> dict:
@@ -62,7 +79,7 @@ def public_detail_dict(detail, concierge_advisor=None) -> dict:
         "included": detail.included or [],
         "excluded": detail.excluded or [],
         "notes": detail.notes or [],
-        "gallery": detail.gallery or [],
+        "gallery": [resolve_media_url(image) for image in (detail.gallery or [])],
         "conciergeAdvisor": public_concierge_advisor_dict(concierge_advisor) if concierge_advisor else None,
     }
 
@@ -77,16 +94,16 @@ def public_home_wanfa_recommendation_dict(item) -> dict:
 
 
 def concierge_advisor_dict(advisor) -> dict:
-    return model_dict(advisor)
+    return media_model_dict(advisor)
 
 
 def public_concierge_advisor_dict(advisor) -> dict:
     return {
-        "avatar": advisor.avatar,
+        "avatar": resolve_media_url(advisor.avatar),
         "name": advisor.name,
         "role": advisor.role,
         "details": advisor.details or [],
-        "qrImage": advisor.qrImage,
+        "qrImage": resolve_media_url(advisor.qrImage),
     }
 
 
@@ -97,7 +114,7 @@ def public_home_experience_dict(item) -> dict:
         "category": item.category,
         "title": item.title,
         "englishTitle": item.englishTitle,
-        "image": item.image,
+        "image": resolve_media_url(item.image),
         "demandKeyword": item.demandKeyword,
     }
 
@@ -108,7 +125,7 @@ def public_home_team_building_dict(item) -> dict:
         "tag": item.tag,
         "title": item.title,
         "description": item.description,
-        "image": item.image,
+        "image": resolve_media_url(item.image),
         "demandKeyword": item.demandKeyword,
     }
 
@@ -132,7 +149,7 @@ def public_home_wild_archive_dict(item) -> dict:
     return {
         "id": item.id,
         "title": item.title,
-        "image": item.image,
+        "image": resolve_media_url(item.image),
         "demandKeyword": item.demandKeyword,
         "photoCount": len(item.images or [item.image]),
     }
@@ -144,5 +161,5 @@ def public_home_wild_archive_detail_dict(item) -> dict:
         images = [item.image]
     return {
         **public_home_wild_archive_dict(item),
-        "images": images,
+        "images": [resolve_media_url(image) for image in images],
     }