卡①T5(核心数据面结构收敛批): 存档域拆件——SlotStore建件(槽位族10公开+槽位态随迁+_migrate_legacy_save/_copy_file/_remove_file随迁,_rename_overwrite留save IO单点)/MetaStateStore建件(写口原语13+只读投影6+add_keystone私有)/save_manager瘦身(52→7公开:load_from_disk/write_to_disk/register_migration+断点族4;_load_parsed/_peek_migrated读盘域提取,迁移链文案经fail数组逐字带出;类变量6)/全域改址449处(槽位族→save.slots.,元进度族→save.meta_state.,读面投影改形career/tree/forge/attune_state;meta转发与GainJournal.vision_used按卡留T6);[用户特许2026-10-28:本批测试动作移交用户,套件与闸停跑,实现继续]

game/tests/unit/presentation/forge_workbench_test.gd

@@ -85,7 +85,7 @@ func _run() -> void:
 		rows.sword.buy_btn.disabled and rows.spear.unlock_btn.disabled)
 
 	# ⑥ 满级行：无购买钮、状态=已满级（直置存档域构造——两分法调试口径）
-	sv.set_forge_route_level("sword", 5)
+	sv.meta_state.set_forge_route_level("sword", 5)
 	ov.refresh_camp({"balance": 500, "forge": mp.forge_shop_status(),
 		"tree": [{"node_id": "forge_workshop", "level": 1}]})
 	rows = _row_by_id(ov)