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/presentation/hud_presenter.gd

@@ -260,16 +260,16 @@ static func career_data(db: ConfigDb, save_manager: SaveManagerCore, meta: MetaP
 	for i in db.level_count():
 		var li: int = i + 1
 		clears.append({"display_name": String(db.level_row(li).get("display_name", "")),
-			"count": save_manager.clear_count(li)})
-		if save_manager.boss_first_kill_marked(li):
+			"count": save_manager.meta_state.career_state().clear_counts.get(str(li), 0)})
+		if save_manager.meta_state.career_state().boss_first_kill.has(str(li)):
 			boss_first += 1
 	return {
-		"total": save_manager.adventure_total(),
-		"cleared": save_manager.adventure_cleared(),
+		"total": save_manager.meta_state.career_state().adventure_total,
+		"cleared": save_manager.meta_state.career_state().adventure_cleared,
 		"clears": clears,
 		"boss_first_kills": boss_first,
 		"boss_first_total": db.level_count(),
-		"boss_kills": save_manager.boss_kill_count(),
+		"boss_kills": save_manager.meta_state.career_state().boss_kill_count,
 		"keystone": meta.keystone_balance(),
 	}
 
@@ -280,7 +280,7 @@ static func career_data(db: ConfigDb, save_manager: SaveManagerCore, meta: MetaP
 static func save_select_data(save_manager: SaveManagerCore) -> Dictionary:
 	var slots: Array[Dictionary] = []
 	for i in range(1, save_manager.SLOT_COUNT + 1):
-		var p := save_manager.peek_slot_summary(i)   # 推断 Dictionary（窥视返回合同——裸注解触 R1、参数化赋值运行期严格拒）
+		var p := save_manager.slots.peek_slot_summary(i)   # 推断 Dictionary（窥视返回合同——裸注解触 R1、参数化赋值运行期严格拒）
 		slots.append({"slot": i,
 			"occupied": bool(p.get("has_file", false)) and bool(p.get("readable", false)),
 			"keystone": int(p.get("keystone", 0)),

game/presentation/main.gd

@@ -312,7 +312,7 @@ func _on_confirm_accepted() -> void:
 	_close_modal(confirm_dialog)   # 模态栈单口
 	match _confirm_consumer:
 		"delete_slot":
-			save_manager.delete_slot(_confirm_consumer_slot)
+			save_manager.slots.delete_slot(_confirm_consumer_slot)
 			save_select_overlay.open_save_select(HudPresenter.save_select_data(save_manager))   # 就地刷新（该槽回空态）
 	_confirm_consumer = ""
 
@@ -368,7 +368,7 @@ static func build_adventure_params(save_manager_ref: SaveManagerCore, meta_ref:
 		"hero_override": meta_ref.hero_override() if meta_ref != null else {},
 		"attack_type": meta_ref.hero_attack_type() if meta_ref != null else "",
 		"armor_type": meta_ref.hero_armor_type() if meta_ref != null else "",
-		"attunement": save_manager_ref.attunement_equipped() if save_manager_ref != null else [],
+		"attunement": save_manager_ref.meta_state.attune_state().equipped if save_manager_ref != null else [],
 		"attune_refresh_y": meta_ref.attune_refresh_charges() if meta_ref != null else 0,
 		"tree_rules": meta_ref.tree_rule_keys() if meta_ref != null else [],
 	}
@@ -906,6 +906,6 @@ func _seed_value() -> int:
 	#   封闭流、禁 randomize()/自建 RNG——组合根建种子属引擎熵豁免面，不进玩法 RNG 消费）
 	if _seed_edit.text.is_valid_int():
 		return int(_seed_edit.text)
-	if save_manager.is_first_adventure_done():
+	if save_manager.meta_state.career_state().first_adventure_done:
 		return randi()   # rng-seed-exempt（非首局空框引擎熵——组合根建种子不进玩法 RNG 消费，static_scan S1/S2 标记豁免）
 	return 42

game/presentation/main_overlay_flow.gd

@@ -68,14 +68,14 @@ static func _on_save_select_closed(root: Variant) -> void:
 # 空槽新档链（Q3 裁乙暂行落点=现役 CampOverlay；卡④ 重立卡后改挂场景图）：卡① 创建=激活=白板落盘，
 # 落点开层。动线序（禁先关后开）：先落点开层（开始层保持隐藏），选档层被模态栈遮挡隐藏、不关闭。
 static func _on_save_select_new(root: Variant, slot: int) -> void:
-	root.save_manager.create_slot(slot)
+	root.save_manager.slots.create_slot(slot)
 	root._camp_pres.open_camp()
 
 
 
 # 有档槽进档链（契约 8 进档即激活）：卡① 激活+读盘（兜底/拒读链按槽成立）→暂行落点 CampOverlay。
 static func _on_save_select_load(root: Variant, slot: int) -> void:
-	root.save_manager.activate_slot(slot)
+	root.save_manager.slots.activate_slot(slot)
 	root._camp_pres.open_camp()