refactor(admin): 收敛后台接口封装与页面状态逻辑

- 简化绑定和日志接口的查询、序列化与前端数据请求路径
- 统一登录流程与前端 API 调用层，补充后台图标依赖
- 抽取通用异步状态处理，减少多个管理页面的重复逻辑

app/api/logs.py

@@ -34,6 +34,33 @@ def apply_log_filters(
     return statement
 
 
+def to_log_item(item: InterceptLog) -> InterceptLogItem:
+    return InterceptLogItem(
+        id=item.id,
+        token_display=item.token_display,
+        bound_ip=str(item.bound_ip),
+        attempt_ip=str(item.attempt_ip),
+        alerted=item.alerted,
+        intercepted_at=item.intercepted_at,
+    )
+
+
+def write_log_csv(buffer: io.StringIO, logs: list[InterceptLog]) -> None:
+    writer = csv.writer(buffer)
+    writer.writerow(["id", "token_display", "bound_ip", "attempt_ip", "alerted", "intercepted_at"])
+    for item in logs:
+        writer.writerow(
+            [
+                item.id,
+                item.token_display,
+                str(item.bound_ip),
+                str(item.attempt_ip),
+                item.alerted,
+                item.intercepted_at.isoformat(),
+            ]
+        )
+
+
 @router.get("", response_model=LogListResponse)
 async def list_logs(
     page: int = Query(default=1, ge=1),
@@ -54,17 +81,7 @@ async def list_logs(
     ).all()
 
     return LogListResponse(
-        items=[
-            InterceptLogItem(
-                id=item.id,
-                token_display=item.token_display,
-                bound_ip=str(item.bound_ip),
-                attempt_ip=str(item.attempt_ip),
-                alerted=item.alerted,
-                intercepted_at=item.intercepted_at,
-            )
-            for item in logs
-        ],
+        items=[to_log_item(item) for item in logs],
         total=total,
         page=page,
         page_size=page_size,
@@ -85,19 +102,7 @@ async def export_logs(
     logs = (await session.scalars(statement)).all()
 
     buffer = io.StringIO()
-    writer = csv.writer(buffer)
-    writer.writerow(["id", "token_display", "bound_ip", "attempt_ip", "alerted", "intercepted_at"])
-    for item in logs:
-        writer.writerow(
-            [
-                item.id,
-                item.token_display,
-                str(item.bound_ip),
-                str(item.attempt_ip),
-                item.alerted,
-                item.intercepted_at.isoformat(),
-            ]
-        )
+    write_log_csv(buffer, logs)
 
     filename = f"sentinel-logs-{datetime.utcnow().strftime('%Y%m%d%H%M%S')}.csv"
     return StreamingResponse(