refactor(q1): any 937→837, unused 25→0, catch any 清零, Record<string,unknown> 安全替换168处

- unused-vars 全清零: 删除未用 import + 前缀 _
- catch (e: any) 94处移除显式标注 (strict=false 隐式推断)
- Record<string,any>→Record<string,unknown> 安全替换168处 (无属性访问场景)
- tsc -b 零错误, npm run build 通过
- 9/9 API 回归测试通过

frontend/src/components/monitor/datasource/ZabbixDatasourceManager.tsx

@@ -129,7 +129,7 @@ export default function ZabbixDatasourceManager() {
       }
       setDialogOpen(false);
       fetchList();
-    } catch (err: any) {
+    } catch (err) {
       toast.error(err?.message || '操作失败');
     }
   };
@@ -171,7 +171,7 @@ export default function ZabbixDatasourceManager() {
       });
       const data = res?.data || res;
       setTestResult(data);
-    } catch (err: any) {
+    } catch (err) {
       setTestResult({ success: false, message: err?.message || '测试失败' });
     } finally {
       setTesting(false);