feat: 专项附加扣除只显示当月社保在保人员

frontend/src/pages/SocialInsurance.tsx

@@ -1096,12 +1096,16 @@ function SpecialDeductionTab({ month, setMonth }: { month: string; setMonth: (m:
     },
   })
 
-  // 查询所有员工列表（用于添加未录入的员工）
+  // 查询当月社保在保人员（只有缴纳社保的员工才需要填报专项附加扣除）
   const { data: employees = [] } = useQuery<any[]>({
-    queryKey: ['employees-for-deduction'],
+    queryKey: ['active-social-employees', month],
     queryFn: async () => {
-      const res = await api.get('/roster', { params: { pageSize: 999 } }) as any
-      return res.data?.items || res.data || []
+      const res = await api.get('/social/active-declaration', { params: { month } }) as any
+      return (res.data?.items || []).map((item: any) => ({
+        id: item.employeeId,
+        name: item.name,
+        department: item.department,
+      }))
     },
   })