feat(close): 迭代20 T5+T8+T9+T10 C段收尾（专长实装批）

T5 Boss 兑付面换代：通关渠道三选一改按档配比加权抽取（无放回加权抽 boss_feat_weight
100/45/15/5 provisional 归调参批——奇物.md v3.1 rarity 语义约束兑付面）；信号注释换代
「提升三选一」→「专长三选一」（V11 正名）；V12 频带断言（300 停点档位频率出带±15pp）。

T8 MC 对账适配：formed 画像 14 旧件→五事件族 14 新件（开格 4/插旗 3/踩雷 4/节奏 2/战斗 1）；
新基线取证：normal/off 100 局 71000 档 通关 0%（master 对照同为 0%=零配基线本相），
止步分布 90/10→93/7 可归因曝光槽候选构成；同种子重放 30 局逐位复现 ✓（V15）。

T9 迁出收尾：treasure_items 删 venom_edge/flag_burst 两行（同调目录收窄）；schema 词面
venom_rider/flag_burst 摘除（EFFECT_KINDS/MAGNITUDE_KINDS）；rewrite_board 效果类型除名
（净化工兵退役——V14 连带清理闭环）；V13 断言入 smoke。

T10 空配置验收闸：三选一池空 skip_empty_curio 消化+非空拒绝反例+商店空货架合法态断言。

测试：pool_case_d 17 checks（+V12/T10）/feat_vouchers 23 checks（+V16 断点往返）；
冒烟 864/0+run_all 21 套全绿。

game/core/adventure_runner.gd

@@ -41,7 +41,7 @@ class_name AdventureRunner
 extends RefCounted
 
 signal level_started(level_index: int, display_name: String)   # 每关开始（含冒险首关）——呈现层重取 runner()、刷新图条与层名行
-signal curio_choice_presented(payload: Dictionary)             # 提升三选一停点（非末关通关恰一次；迭代 10 大奖励重构——big_reward_paid 退役）——{level_index, candidates, heal_gained, hp_before, hp_after, keystone_gained, keystone_total, gp, aux_cleared}
+signal curio_choice_presented(payload: Dictionary)             # 专长三选一停点（非末关通关恰一次；迭代 20 T5 换代正名——旧「提升三选一」退役，通道白名单后候选恒专长+回血在载荷）——{level_index, candidates, heal_gained, hp_before, hp_after, keystone_gained, keystone_total, gp, aux_cleared}
 signal curio_resolved(result: Dictionary)                      # 三选一兑付完成（pick_curio/替换受理后恰一次）——{picked, value, hp_before, hp_after, level_index}
 signal treasure_replace_presented(items: Array, incoming: Dictionary)  # 同调位满位替换子交互（pick_curio 道具件满位时）——items=现有持有件记录、incoming=新件记录
 signal adventure_finished(summary: Dictionary)                 # 冒险结算（completed/failed/abandoned）——summary 五件事：打穿没有/通关几关/止步第几关/钥石合计/主种子（+additive keystone_drops 迭代 10）
@@ -872,6 +872,35 @@ func _draw_curio_candidates(channel: String = "reward_node") -> Array:
 			var t: Dictionary = tok as Dictionary
 			return _curio_cap_ok(String(t.get("kind", "")), String(t.get("feat_id", ""))))
 	var rg: RandomNumberGenerator = rng.open_stream("reward_pick")
+	if channel == "level_clear":
+		# 迭代 20 T5——Boss 渠道按档配比加权抽取（无放回加权抽：逐席按 boss_feat_weight 掷点，
+		# 身份去重照旧；rarity 语义约束兑付面——奇物.md v3.1，配比数值归调参批）
+		var out_w: Array = []
+		var seen_w: Array = []
+		var want_w := int(db.adventure.curio_candidate_count)
+		while out_w.size() < want_w and not pool.is_empty():
+			var total_w := 0
+			for tok_w in pool:
+				total_w += db.adventure.boss_feat_weight(String((tok_w as Dictionary).get("tier", "")))
+			if total_w <= 0:
+				break
+			var roll_w := rg.randi_range(1, total_w)
+			var pick_i := 0
+			for i_w in pool.size():
+				roll_w -= db.adventure.boss_feat_weight(String((pool[i_w] as Dictionary).get("tier", "")))
+				if roll_w <= 0:
+					pick_i = i_w
+					break
+			var tok_p: Dictionary = pool[pick_i]
+			var ident_p := _token_identity(tok_p)
+			if seen_w.has(ident_p):
+				pool.remove_at(pick_i)   # 同身份已出——剔牌重掷（无放回）
+				continue
+			seen_w.append(ident_p)
+			var cand_p := {"kind": String(tok_p.get("kind", "")), "tier": String(tok_p.get("tier", "")), "feat_id": String(tok_p.get("feat_id", ""))}
+			out_w.append(cand_p)
+			pool.remove_at(pick_i)
+		return out_w
 	for i in pool.size():
 		var j := rg.randi_range(i, pool.size() - 1)
 		var tmp = pool[i]

game/core/effect_engine.gd

@@ -32,7 +32,7 @@ const MINE_EVENTS := ["dig_reveal", "dig_paid", "flag_hit", "mine_hit", "flag_se
 const EFFECT_KINDS := ["add_ticket_rider", "modify_ticket", "damage_mult", "open_ticket",
 	"attack_bonus", "attack_segments", "yield_mult", "spawn_spell", "overflow", "grant_material",
 	"grant_ap", "grant_gp", "bias_wallet", "shield", "spike", "apply_status", "counter_add",
-	"counter_spend", "rewrite_board", "reveal_tiles", "remove_mines", "refresh_pick",
+	"counter_spend", "reveal_tiles", "remove_mines", "refresh_pick",
 	"bias_rewards", "preview",
 	# 迭代 20 专长实装批 T1 扩签六型（奇物.md 基础件表 27 件声明清单——落法映射 commit 留痕）：
 	# heal=回复生命〔血蜜/战地包扎〕；ac_bonus=护甲加值累积器〔封印桩本轮/石肤本场 cap〕；
@@ -42,8 +42,8 @@ const EFFECT_KINDS := ["add_ticket_rider", "modify_ticket", "damage_mult", "open
 	# target_attack_bonus=单位标记加伤〔处刑台——敌血量阈值挂单位字典，主角攻击面通用消费〕
 	"heal", "ac_bonus", "damage_reduce", "bonus_delta", "blast_scaled", "preview_area",
 	"target_attack_bonus"]
-	# 注：rewrite_board 保留至本批 T3——老 27 行 purge_sapper（净化工兵）仍在表，删行同批除名
-	# （迭代 20 卡 V14 连带清理；编排器消费分支已先行摘除=命中零消费 no-op 过渡）
+	# 注：rewrite_board 已除名（迭代 20 T9——净化工兵随老 27 件退役，V14 连带清理；
+	# 编排器消费分支 T1 先行摘除）
 
 ## fact 条件词汇（封闭枚举——迭代 20 T1 扩签 9→17：payload 同名键直读面〔fact 取值序 payload
 ## 优先——effect_engine._fact_value 既有机制〕。new_resource_type=首开资源类型〔地质学家〕；

game/data/schemas/adventure_table.gd

@@ -187,6 +187,17 @@ func curio_cap(kind: String) -> int:
 	return 99
 
 
+## Boss 专长三选一按档配比加权（迭代 20 T5——奇物.md v3.1 rarity 语义约束「候选按档配比或
+## 加权抽取」兑付面；权重 provisional 归调参批——普通打底/优秀期待/稀有稀缺/传说头奖形态）
+func boss_feat_weight(tier: String) -> int:
+	match tier:
+		TIER_COMMON: return 100
+		TIER_EXCELLENT: return 45
+		TIER_RARE: return 15
+		TIER_LEGENDARY: return 5
+	return 1
+
+
 ## 档位判读序（MC 策略 316-f——1 级最稀有：legendary > rare > excellent > common；并列同档取最左由调用方稳定序保证）
 func tier_rank(tier: String) -> int:
 	match tier:

game/data/schemas/treasure_item_table.gd

@@ -41,7 +41,7 @@ const DIMENSIONS := ["info", "risk", "action", "plan", "counter"]
 # 内容数据驱动扩展批 T2 挂账：主动件 kind 词族换代（reveal_tiles/preview/grant_ap/remove_mines/
 # refresh_pick——效果引擎 ACTIVE_KINDS 同名闭集），被动件 effect_kinds 词族随 T4 秘宝迁移退役
 # （passive 行改 triggers 事件订阅形态）；旧词保留共存至迁移完成。
-const EFFECT_KINDS := ["mine_reveal", "reward_preview", "ap_grant", "venom_rider", "flag_burst",
+const EFFECT_KINDS := ["mine_reveal", "reward_preview", "ap_grant",
 	"mine_hit_halve", "reflect_damage", "ap_rounds_front", "ap_charge_safe", "cell_removal",
 	"reward_weight_bias", "bonus_refresh",
 	"reveal_tiles", "preview", "grant_ap", "remove_mines", "refresh_pick"]
@@ -49,7 +49,7 @@ const TARGETS := ["none", "area_3x3", "board_wide"]
 const USE_PHASES := ["active_dig"]
 const FORMS := ["", "passive", "active_charged"]
 # magnitude 消费面（≥1 校验）：grant_ap 与同调 N 值 kind；其余 kind 活行 magnitude 恒 0
-const MAGNITUDE_KINDS := ["ap_grant", "venom_rider", "flag_burst", "reflect_damage", "ap_rounds_front",
+const MAGNITUDE_KINDS := ["ap_grant", "reflect_damage", "ap_rounds_front",
 	"ap_charge_safe", "reward_weight_bias", "bonus_refresh", "grant_ap"]
 # 🔴 零裸 flat 结构护栏：行键白名单封闭（键出域=加载致命）——机制轴禁无条件属性加项的表结构承载
 const KEY_WHITELIST := ["item_id", "display_name", "dimension_tags", "effect_kinds", "target",

game/data/tables/treasure_items.tres

@@ -73,59 +73,6 @@ rows = [{
 "slot_cost": 1,
 "charges_per_adventure": 2
 }, {
-"item_id": "venom_edge",
-"display_name": "淬毒刃纹",
-"dimension_tags": ["counter"],
-"desc": "克制正面直伤+2",
-"target": "none",
-"magnitude": 2,
-"use_phase": "active_dig",
-"form": "passive",
-"slot_cost": 1,
-"triggers": [{
-"on": "clamp_check",
-"when": [{
-"fact": "matchup",
-"op": "eq",
-"value": "pierce_vs_ward"
-}],
-"do": {
-"kind": "modify_ticket",
-"delta_from": "magnitude",
-"mode": "clamp_bonus"
-}
-}, {
-"on": "clamp_check",
-"when": [{
-"fact": "matchup",
-"op": "eq",
-"value": "magic_vs_heavy"
-}],
-"do": {
-"kind": "modify_ticket",
-"delta_from": "magnitude",
-"mode": "clamp_bonus"
-}
-}]
-}, {
-"item_id": "flag_burst",
-"display_name": "标中殉爆",
-"dimension_tags": ["action"],
-"desc": "每标中一旗全体敌受2",
-"target": "none",
-"magnitude": 2,
-"use_phase": "active_dig",
-"form": "passive",
-"slot_cost": 1,
-"triggers": [{
-"on": "flag_hit",
-"do": {
-"kind": "open_ticket",
-"value_from": "magnitude",
-"channel": "blast"
-}
-}]
-}, {
 "item_id": "nest_counter",
 "display_name": "惊巢反制",
 "dimension_tags": ["risk"],

game/smoke/adventure_monte_carlo.gd

@@ -50,11 +50,14 @@ func _initialize() -> void:
 		feat_mode = args[6]
 	var feat_profile := {}
 	if feat_mode == "formed":
+		# 迭代 20 T8 画像换代——旧 14 件随老 27 件退役；新画像=五事件族覆盖 14 件
+		# （开格 4/插旗 3/踩雷 4/节奏 2/战斗 1——每族含跨事件账本件，账本件=攒层/计数面 MC 读数承载）
 		feat_profile = {"mode": "on", "seed_ids": [
-			"arcane_ember", "mana_weaver", "pierce_shot", "chain_arrows",
-			"miner_stubborn", "miner_hammer", "greedy_lantern", "vein_intuition",
-			"mine_atlas", "nest_hunter", "armory_prep", "iron_wall",
-			"ley_harvest", "thorn_weaver"]}
+			"twin_pick", "geologist", "hard_hat", "frontier_miner",
+			"seal_echo", "seal_smith", "seal_stake",
+			"pain_memory", "trap_instinct", "chain_traps", "blood_honey",
+			"last_drop", "market_close",
+			"execution_scholar"]}
 	elif feat_mode == "ab_a":
 		feat_profile = {"mode": "off", "tree_rules": ["posture_first_strike"]}
 	elif feat_mode == "ab_b":

game/smoke/smoke_all.gd

@@ -654,6 +654,8 @@ func _smoke_feats() -> void:
 	# ② 旧 27 件退役钉面（V2——arcane_ember 系旧件表首行；全仓 grep 零残留归批末静态核查）
 	check(_db.feats.row_by_id("arcane_ember").is_empty() and _db.feats.row_by_id("magma_body").is_empty(),
 		"旧 27 件已退役：arcane_ember/magma_body 表内零残留〔专长批 V2〕")
+	check(_db.treasure_items.row_by_id("venom_edge").is_empty() and _db.treasure_items.row_by_id("flag_burst").is_empty(),
+		"迁出收尾：treasure_items 无 venom_edge/flag_burst 行（同调目录自然收窄）〔专长批 V13〕")
 	# ③ 契约面静态钉扎（V18/V19/V21/V22——人工核对 V20/V21 裁决面以外的可机检半）
 	var kinds_ok := true
 	for t in a_r0._curio_deck:

game/tests/unit/core/feat_vouchers_test.gd

@@ -86,4 +86,22 @@ func _init() -> void:
 	Kit.check_quiet(a.pick_curio("ap", "rare") and int(a.bonus.get("ap", 0)) == ap_bonus_before + int(db.adventure.curio_value("ap", "rare")),
 		"行动点上限归属性轴：ap 兑付写加算区第四轴（bonus.ap 承载）〔专长批 V10〕")
 
+	# V16——断点扩容往返：新账本随断点快照/续玩回填（breakpoint_resume_test P5 同构）
+	var sm = load("res://core/save_manager.gd").new("user://_feat_vouchers_bp.json")
+	sm.load_from_disk()
+	a.adventure_counters = {"pain_layers": 3, "twin_digs": 5}
+	a._refresh_stock = 2
+	a._battery_pending = 1
+	a.set_save_manager(sm)
+	a._on_level_finished({"result": "victory", "hp": 10, "node_index": 1, "node_id": 1, "node_type": "shop"})
+	var bp16: Dictionary = sm.breakpoint_snapshot()
+	Kit.check_quiet(int((bp16.get("adventure_counters", {}) as Dictionary).get("pain_layers", -1)) == 3
+		and int(bp16.get("refresh_stock", -1)) == 2 and int(bp16.get("battery_pending", -1)) == 1,
+		"V16：新账本三件入断点快照（adventure_counters/refresh_stock/battery_pending）〔专长批 V16〕")
+	var b2 = load("res://core/adventure_runner.gd").new(db, load("res://core/rng_service.gd").new())
+	Kit.check_quiet(b2.resume_adventure(bp16.duplicate(), {}), "V16 前置：续玩受理")
+	Kit.check_quiet(int(b2.adventure_counters.get("pain_layers", -1)) == 3 and b2.refresh_stock() == 2 and b2.battery_pending() == 1,
+		"V16：续玩回填逐项一致（计数恢复——跨战账不丢）〔专长批 V16〕")
+	sm.clear_breakpoint()
+
 	quit(Kit.finish("feat_vouchers"))

game/tests/unit/core/pool_case_d_test.gd

@@ -27,6 +27,26 @@ func _init() -> void:
 	var c = load("res://core/adventure_runner.gd").new(db, load("res://core/rng_service.gd").new())
 	check_v8(c, db)
 
+	# V12——Boss 三选一按档配比加权抽取（MC 同种子批量抽样档位频率出带；权重 provisional
+	# 100/45/15/5 ×表内件数 12/9/8/0 → 期望占比 ≈ 69/26/4/0，带 ±15pp 容差）
+	var m = load("res://core/adventure_runner.gd").new(db, load("res://core/rng_service.gd").new())
+	check_v12(m, db)
+
+	# T10——空配置验收闸（三选一池空兜底/商店空货架）
+	var e = load("res://core/adventure_runner.gd").new(db, load("res://core/rng_service.gd").new())
+	e.start_adventure(501, {"first_script": true})
+	e._curio_pending = {"candidates": []}
+	Kit.check_quiet(e.skip_empty_curio() and e._curio_pending.is_empty(),
+		"空配置闸：三选一池空=停点整体跳过（skip_empty_curio 消化）〔专长批 T10〕")
+	e._curio_pending = {"candidates": [{"kind": "gp", "tier": "common"}]}
+	Kit.check_quiet(not e.skip_empty_curio(),
+		"空配置闸反例：非空停点拒绝跳过（零自动推进契约不破）〔专长批 T10〕")
+	var lr = load("res://core/level_runner.gd").new(db, load("res://core/rng_service.gd").new())
+	lr.set_shop_pool([], Callable(), Callable(), Callable())
+	lr._shop_draw_shelf()
+	Kit.check_quiet((lr.shop_bp_shelf() as Array).is_empty(),
+		"空配置闸：商店空货架=合法态（牌库空=零扰动不崩）〔专长批 T10〕")
+
 	quit(Kit.finish("pool_case_d"))
 
 
@@ -118,6 +138,24 @@ func check_v6(b, db) -> void:
 	Kit.check_quiet(unchanged, "只刷出不计：抽签不改已拿账〔专长批 V6〕")
 
 
+func check_v12(m, db) -> void:
+	if not m.start_adventure(401, {"first_script": true}):
+		Kit.check_quiet(false, "V12 前置：冒险启动")
+		return
+	var tier_n := {"common": 0, "excellent": 0, "rare": 0, "legendary": 0}
+	var total := 0
+	for i in 300:
+		for t in m._draw_curio_candidates("level_clear"):
+			tier_n[String(t.get("tier", ""))] = int(tier_n.get(String(t.get("tier", "")), 0)) + 1
+			total += 1
+	Kit.check_quiet(total == 900, "V12 前置：300 停点 ×3 候选=900 席（实 %d）" % total)
+	var p_common := float(tier_n["common"]) / float(total)
+	var p_excellent := float(tier_n["excellent"]) / float(total)
+	var p_rare := float(tier_n["rare"]) / float(total)
+	Kit.check_quiet(p_common > 0.54 and p_common < 0.84 and p_excellent > 0.11 and p_excellent < 0.41 and p_rare >= 0.0 and p_rare < 0.19 and tier_n["legendary"] == 0,
+		"Boss 档配比频率出带（common %.2f/excellent %.2f/rare %.2f/legendary 0——权重 100/45/15/5×件数 12/9/8/0）〔专长批 V12〕" % [p_common, p_excellent, p_rare])
+
+
 func check_v8(c, db) -> void:
 	if not c.start_adventure(203, {"first_script": true}):
 		Kit.check_quiet(false, "V8 前置：冒险启动")