变更问题修复

mappings/lifecycle.mapping.json

@@ -1,7 +1,8 @@
 {
   "contract_version": "ltjt-lifecycle-v2.9-roster-leader-contact-2026-08",
   "current_agent_parse_prompt_version": "ltjt-agent-prompt-v1.8-independent-headcount-categories",
-  "current_extension_version": "0.5.180",
+  "current_extension_version": "0.5.182",
+  "original_arrangement_date_selection": "Hotel, vehicle, transport and other/filing update selection accepts MM-DD or YYYY-MM-DD; omitted year matches original ERP month/day within the exact group only. Require exactly one persisted row, then freeze its actual full dates and id. Full year is exact; mixed/cross-year endpoints are matched independently with actual range order checked. No match or ambiguity blocks before mutation; show up to five original candidates and ask to resubmit complete dates. Creation and legacy target-date changes retain existing semantics.",
   "historical_test_marker": "TEST-202609",
   "scope": "/System/Business/",
   "erp_session_keepalive": {