feat(tree): 迭代21天赋树实装批 T1-T6 主体——12节点换代+六键接线+营地四柜台（2026-10-12 U0）

T1 schema 换代：MetaTreeTable FORK_GROUPS 4→3（fg_mastery 退役）/RULE_KEYS 2→6（sense/economy 四键扩签）/
  fork 单行双态（effects_a/b+name_a/b、每组恰一校验）/row 字段退役（行门槛主语=节点等级 level_gate）/
  requires 只留点亮前置（R1 裁撤案执行）；meta_tree.tres 33→12 行重排（脊柱2/锻造2含彩蛋/钥石2/同调6，
  att_socket1 改根节点无前置，easter_ley 摘 atk/armor_class 分量=契约9）
T2 购买与彩蛋面：tree_can_buy easter 拒购+行门槛换轴；tree_buy_fork=解锁默认A；tree_toggle_fork 零币切态；
  tree_rule_keys 按激活态 effects_a/b 投影；_check_easter_egg 特化判定（两线拉满+socket全解锁）；营地树行板双态钮
T3 六键接线：EVENTS+flag_missed/FACTS+battle_index（L2 扩签两处）；rebuild 六键合成订阅
  （posture 窗=battle_index&&round_index 双闸/sense 两组=counter 闸+记账双行 domain:adventure 限次2次 provisional）；
  level_runner battle_index 注入（visited battle 型计数）；_judge_flag 去重闸后 flag_missed 发射（契约12）；
  聚=_roll_gp_drop 入账前×1.5 provisional（escrow 不乘）；散=_spend_discounted ×80%（current_price/pool_price
  双计价点，刷新价不折=§11②定义边界）；_start_current_level 限次按关清零（_reset_tree_limited_counters 可测口）
T4 注入换代：hero_override=树淬炼flat+FORGE_ROUTE_BONUS预留0（命中不注入=契约6）；Attunement.slots 判定源切
  树点亮数（谓词表退役）；tree_buy(ks_refresh) 同账路由 buy_attune_refresh（V15 双入口）
T5 旧档废弃与删除：save_manager tree_struct=2 结构版本标记+_normalize 白名单重建+树域废弃重置（禁迁移折算）；
  migrate_tree/buy_forge/forge_flat/forge_level/forge_price/meta_forge_row/forge_products 行族/
  attunement_growth 表+访问器/生涯页三投影/career forge_total 全删；treasure_item_table UNLOCK_COUNTER_KEYS 内联；
  verifier_batch 花费策略换代树节点；MC slots 画像常量3
T6 营地统一：四柜台并排横滚（树淬炼主界面/锻造工坊钥匙门+零交互占位面板/秘宝匣钥匙门+内容迁入/图鉴常开）；
  暂停层锻造段连带删；camp data forge 投影删
存量红修复：_flush_pending_reveals 三处空 source_class 补 fx_reveal+类级豁免（a57489e9 落地件，冒烟51行）
测试随批：smoke 树段全重写（V1/V2/V3/V8/V9/V16）+_smoke_tree_rules V10 行为段（窗/限次/守侧五场景编排rig/聚散
  同种子对拍）+单元 tree_rules_v11_test（六键合成行闭集校验）+run_all 22 套；ui_probe/ui_click_probe 换代树点击路径
轻闸全绿：冒烟886/0+run_all 22套+probe --click 全绿

game/core/effect_engine.gd

@@ -17,10 +17,12 @@ class_name EffectEngine
 extends RefCounted
 
 ## 事件词汇（迭代 20 专长实装批 T1 扩签——16→18：+dig_stop 停手挂点〔弃图兑换〕
-## +battle_won 战斗胜利〔战地包扎〕；原 16 发射点不动）
+## +battle_won 战斗胜利〔战地包扎〕；迭代 21 天赋树批 T3 扩签 18→19：+flag_missed 标错判定
+## 〔危险直觉·守挂点——_judge_flag 去重闸后发射，契约 12 触发主语=当回合标错动作；
+## 命名避让 _emit_row 在册 source_class 名 flag_miss〕；原发射点不动）
 const EVENTS := ["dig_reveal", "dig_paid", "flag_hit", "mine_hit", "attack_commit", "clamp_check",
 	"armor_roll", "kill", "damage_taken", "enemy_hp_threshold", "round_start", "flag_settle",
-	"round_end", "reward_roll", "treasure_used", "charge_full", "dig_stop", "battle_won"]
+	"round_end", "reward_roll", "treasure_used", "charge_full", "dig_stop", "battle_won", "flag_missed"]
 
 ## 扫雷侧事件集（🔴 流派扫雷触发铁律新形态：每流派 ≥1 行订阅本集事件——schema 加载校验。
 ## 原 MINE_HOOKS 的同义迁移：挖掘/标旗/轮末结算面事件）
@@ -53,7 +55,8 @@ const EFFECT_KINDS := ["add_ticket_rider", "modify_ticket", "damage_mult", "open
 const FACTS := ["matchup", "is_first_dig_of_battle", "terrain_kind", "target_armor_class",
 	"flags_count", "charge_layers", "nest_count", "round_index", "counter",
 	"new_resource_type", "is_edge_cell", "is_blank_zero", "dug_under_flag",
-	"ap_exhausted_last", "hp_ratio", "amount", "ap_left", "pct"]
+	"ap_exhausted_last", "hp_ratio", "amount", "ap_left", "pct",
+	"battle_index"]   # 迭代 21 T3 扩签——关卡域战斗序（1 基，enc 携带；开局姿态组「每关首轮窗」条件面）
 
 ## when 算子词汇（封闭——fact 查询面落法随批登记：mod_zero=计数器取模判满〔掘进蓄能〕、
 ## advantageous=克制矩阵正面判定〔淬毒刃纹〕、gte_ref/lt_ref=与另一计数器比较〔深挖钻头配额〕、
@@ -113,17 +116,46 @@ func rebuild(feat_ids: Array, item_ids: Array, tree_rules: Array = []) -> void:
 				continue
 			for tr in (row.get("triggers", []) as Array):
 				_push_trigger("attune", iid, tr, row)
-	# 树规则合成订阅（T5——规则键效果走同面：非数据行，词表同闭集）
+	# 树规则合成订阅（迭代 21 T3 换代——六键按 v0.8 三组双态）：posture 两键=「每关首轮窗」语义
+	# 〔battle_index==1 且 round_index==1；battle_index=关卡域战斗序由 enc 携带，原「每战首轮」
+	# 实态随窗语义换代〕；sense 两组=每关限次〔adventure 域计数器 lt 上限闸 + 命中即 counter_add
+	# 记账双行——同事件双行同预评估态见闸同记，序=装载序确定；生命周期四态：跨战持久=domain
+	# adventure 导出/回灌、按关重置=AdventureRunner._start_current_level 清零、新冒险清零=账本
+	# 归零、断点保留=断点快照随键〕；economy 两组零订阅行——消费点=GP 掉落乘算与商品计价折价的
+	# tree_rules 成员判定（编排器/关卡 runner 读 enc 键集），不入事件面。数值全 provisional 归 M4。
 	for key_v in tree_rules:
 		var rk := String(key_v)
 		match rk:
 			"posture_first_strike":
 				_push_trigger("tree", rk, {"on": "round_start",
-					"when": [{"fact": "round_index", "op": "eq", "value": 1}],
+					"when": [{"fact": "battle_index", "op": "eq", "value": 1},
+						{"fact": "round_index", "op": "eq", "value": 1}],
 					"do": {"kind": "grant_ap", "mode": "queue", "value": 1}}, {})
 			"posture_bulwark":
 				_push_trigger("tree", rk, {"on": "damage_taken",
+					"when": [{"fact": "battle_index", "op": "eq", "value": 1},
+						{"fact": "round_index", "op": "eq", "value": 1}],
 					"do": {"kind": "shield", "value": 1}}, {})
+			"sense_sharp":
+				# 锋=踩中危险格伤害减半·每关限次——mine_hit 挂点现成（damage_mult 收集→halve_pct，
+				# 与惊巢反制同路径；伤害在结算战斗段末兑付，探索阶段零改动）
+				_push_trigger("tree", rk, {"on": "mine_hit",
+					"when": [{"fact": "counter", "id": "tree_sense_sharp_used", "op": "lt", "value": 2}],
+					"do": {"kind": "damage_mult", "value": 50}}, {})
+				_push_trigger("tree", rk, {"on": "mine_hit",
+					"when": [{"fact": "counter", "id": "tree_sense_sharp_used", "op": "lt", "value": 2}],
+					"do": {"kind": "counter_add", "counter_id": "tree_sense_sharp_used",
+						"value": 1, "domain": "adventure"}}, {})
+			"sense_guard":
+				# 守=标错返还行动点·每关限次（契约 12 失误补偿——flag_missed 由 _judge_flag 去重闸后
+				# 发射；queue=下一轮开轮兑现，末轮判出无下一轮=合法作废自动成立）
+				_push_trigger("tree", rk, {"on": "flag_missed",
+					"when": [{"fact": "counter", "id": "tree_sense_guard_used", "op": "lt", "value": 2}],
+					"do": {"kind": "grant_ap", "mode": "queue", "value": 1}}, {})
+				_push_trigger("tree", rk, {"on": "flag_missed",
+					"when": [{"fact": "counter", "id": "tree_sense_guard_used", "op": "lt", "value": 2}],
+					"do": {"kind": "counter_add", "counter_id": "tree_sense_guard_used",
+						"value": 1, "domain": "adventure"}}, {})
 	# 计数器账本重建（T6——battle 域清零照旧；adventure 域由 counters_seed 回灌〔rebuild 后调用〕）
 	_counters = {}