审计整改(迭代50·缺漏三条补齐): V14落地minesweeper_rules_test(_test_preview_reveal_readonly五断言:形态A/B零状态写入+实挖差集F2同口径逐位+preview前后cell_revealed零增量—根因=t8b patch脚本漏写落盘调用文件零触碰,12→17 checks绿)+V2具名承接件落地level_shop_economy_test(_test_spend_discount_from_rule_key:shop.tres零诊断+字段不在位+折后价discount_pct推导+未激活原价—192→195 checks绿)+实现报告第九节订正与第十节审计整改记录+决定记录#10(forge_table闭集钉数34→32补账—R3摘名必然连带强度不减)

game/tests/unit/core/level_shop_economy_test.gd

@@ -252,6 +252,7 @@ func _init() -> void:
 	_smoke_multi_terminal_settlement()
 	_smoke_shop_pool()
 	_test_shelf_size_from_table()
+	_test_spend_discount_from_rule_key()
 	_test_shop_node_entered_payload()
 	_smoke_generated_coverage()
 	quit(Kit.finish("level_shop_economy_test"))
@@ -1575,3 +1576,21 @@ func _test_shelf_size_from_table() -> void:
 		break
 	st.shelf_size = saved
 	Kit.check("夹具 shelf_size=5 → 货架五件可观测（实测 %d；真表值 3 回归=既有「进店抽 3」断言承载）〔架构整改 V9〕" % got5, got5 == 5)
+
+
+# ---- 散折价收回规则键（架构整改 R2——shop.spend_discount 表字段退役，折价读 economy_spend.discount_pct）----
+
+func _test_spend_discount_from_rule_key() -> void:
+	# 字段真删：shop.tres 加载零诊断 + spend_discount 属性不在位
+	Kit.check("shop.tres 加载零诊断（spend_discount 字段真删——schema 与表行同卸）〔架构整改 V2〕",
+		_db.diagnostics_count("error") == 0 and _db.run.shop.get("spend_discount") == null)
+	# 80% 折价值逐位同（真实入口=LevelRunner 装配链 shop_session.current_price，economy_spend 注入）
+	var bonus: int = int(_db.run.shop.price_level_bonus_at(0))
+	var spend_dict: Dictionary = {"economy_spend": {"discount_pct": 80}}
+	var lr_on = load("res://core/level_runner.gd").new(_db, _fresh_rng(777005), {"tree_rules": spend_dict})
+	var lr_off = load("res://core/level_runner.gd").new(_db, _fresh_rng(777006), {"tree_rules": {}})
+	var p_on: int = int(lr_on.shop.current_price({"base_price": 100, "price_increment": 0}))
+	var p_off: int = int(lr_off.shop.current_price({"base_price": 100, "price_increment": 0}))
+	var expect_on: int = maxi(1, int(floor(float(100 + bonus) * float(spend_dict["economy_spend"]["discount_pct"]) / 100.0)))
+	Kit.check("散激活：折后价 = (基价+关卡加成)×discount_pct/100 floor（%d vs 期望 %d）〔架构整改 V2〕" % [p_on, expect_on], p_on == expect_on)
+	Kit.check("散未激活：原价（无 economy_spend 键——%d）〔架构整改 V2〕" % p_off, p_off == 100 + bonus)

game/tests/unit/core/minesweeper_rules_test.gd

@@ -40,6 +40,7 @@ func _init() -> void:
 	_test_reveal_advances()
 	_test_seal_place()
 	_test_reject_out_of_catalog()
+	_test_preview_reveal_readonly()
 	quit(Kit.finish("minesweeper_rules_test"))
 
 
@@ -110,3 +111,44 @@ func _test_reject_out_of_catalog() -> void:
 	var o: Dictionary = (out[0] as Dictionary) if not out.is_empty() else {}
 	Kit.check("目录外意图被拒（不静默吞掉）——实际载荷 %s" % str(o).substr(0, 80),
 		out.size() == 1 and String(o.get("outcome", o.get("result", ""))) == "rejected")
+
+
+# ---- V14 棋盘揭示预览只读口（架构整改——preview_reveal 与实挖揭示集同口径、零状态写入零事件）----
+
+func _test_preview_reveal_readonly() -> void:
+	var events := 0
+	_rules.cell_revealed.connect(func(_evt): events += 1)   # 零发射哨兵（preview 全程不触发揭示事件）
+	# 形态 A：封印在场——preview(未开格) 不越封印且零状态写入
+	var before_revealed := _rules.revealed_cells().size()
+	var before_seals := _rules.seal_count()
+	var c_open := _unrevealed_safe()
+	var prev_a: Array = _rules.preview_reveal(c_open)
+	Kit.check("V14 形态A：preview 返回集（真板形态——%d 格）" % prev_a.size(), prev_a.size() >= 0)
+	Kit.check("V14 形态A：调用前后零状态写入（revealed/seal 计数零变化）〔架构整改 V14〕",
+		_rules.revealed_cells().size() == before_revealed and _rules.seal_count() == before_seals)
+	# 形态 B：挖封印格——本格封印隐式退役只入模拟集，真实封印计数不动
+	var seal_c := _unrevealed_safe()
+	_rules.settle_batch([{"action": "seal_place", "cell": seal_c}])
+	var sealed_before := _rules.seal_count()
+	var prev_b: Array = _rules.preview_reveal(seal_c)
+	Kit.check("V14 形态B：preview(封印格) 零状态写入（seal_count 不变——隐式退役只入模拟集）〔架构整改 V14〕",
+		_rules.seal_count() == sealed_before)
+	# 同口径对照：preview(c) = settle_batch(dig c) 后 revealed 差集 ∖ {c}（F2——不含首格与已开格）
+	var dig_c := _unrevealed_safe()
+	var prev_c: Array = _rules.preview_reveal(dig_c)
+	var before := {}
+	for rc in _rules.revealed_cells():
+		before[rc] = true
+	_rules.settle_batch([{"action": "dig", "cell": dig_c}])
+	var after_diff := []
+	for rc in _rules.revealed_cells():
+		if not before.has(rc) and rc != dig_c:
+			after_diff.append(rc)
+	Kit.check("V14 同口径：preview(c) = 实挖揭示差集 ∖ {c}（F2——%d vs %d 格逐位）〔架构整改 V14〕" % [prev_c.size(), after_diff.size()],
+		str(prev_c) == str(after_diff))
+	var events_before_previews := events   # 三次 preview 调用前快照（此前增量=夹具自身实挖——与 preview 无关）
+	var _pa: Array = _rules.preview_reveal(_unrevealed_safe())
+	var _pb: Array = _rules.preview_reveal(_unrevealed_safe())
+	var _pc: Array = _rules.preview_reveal(_unrevealed_safe())
+	Kit.check("V14 零事件：preview 全程 cell_revealed 零发射（前后增量 0——实测 %d→%d）〔架构整改 V14〕" % [events_before_previews, events],
+		events == events_before_previews)