chore(config): .gitignore 忽略本地临时目录

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

.gitignore

@@ -63,4 +63,7 @@ temp/
 skill/code/web/service_monitor/data/targets.json
 skill/code/web/service_monitor/data/reports/*.json
 !skill/code/web/service_monitor/data/.gitkeep
-!skill/code/web/service_monitor/data/reports/.gitkeep
\ No newline at end of file
+!skill/code/web/service_monitor/data/reports/.gitkeep
+
+# 本地临时目录（会话工作区，勿入库）
+临时目录/
\ No newline at end of file