test(m80-i35): exercise the crosswind line in a focused battle

docs/plans/M80_BATTLE_SIMULATION.md

@@ -114,6 +114,7 @@ reach/目标选择、Guard/护盾、伤害公式（含暴击与标签化随机
 | `M80-I14` | RESOLVED（2026-09-15）| 链接落地：`link`/`relink` 字段、`link_id` 绑定、`link_broken` 条件随绑定单位倒下而成立、PF-B08 三行可跑；
   门 `ABG_M80_LINK_OK`。**至此 23 个优先条件全部 enabled（pending=0）** |
 | `M80-I34` | RESOLVED（2026-09-16）| **EQ-276 跨战先手**（本轮最有产品价值的一条，接合同推进）：新效果类 `ready_carry`——
+| `M80-I35` | RESOLVED（2026-09-18，M92）| **EN-R1-09 Crosswind Scribe 签名**（on_advance：在敌方最前/最后之间画线；下一次跨线换位 → `hindered`；窗口 `CROSSWIND_WINDOW_TICKS=30` 未跨线 → 一次弱范围命中 `floor(base×coefficient×0.5)` 打全员。窗口时长文档未给，取既有 status 默认档 30 并记录在案）：门 `ABG_M80_ENEMY_ACTIONS_OK ... implemented=12 enr1_09=%d` |
   战斗结束时，若该同伴**一次/每战触发**（引擎已有的三种"已用"标记：标签镜像、共享清洁、打断守卫）全都未用，则 `ready_with_priority=true`；
   `carry_from`/`apply_carry` 把它随 HP 一起带进下一战；桥 `_ally_row` 透传；仿真里以该标记进场者 **开局准备度=阈值 100**（第一拍即可行动）。
   装备门 implemented 276→277；`contract_run` 门标记扩为 `ready_carry=carries`（四环断言：未用→标记 / 携带 / 折叠 / 下一战先手）。

runtime/tests/battle/enemy_actions_test.gd

@@ -20,7 +20,7 @@ func _run() -> void:
 	var battle := _run_region_one()
 	var fired := _signature_events(battle)
 	var implemented := _implemented_rows()
-	var crosswind := _crosswind_events(battle)
+	var crosswind := _crosswind_events(battle) + _crosswind_events(_run_crosswind_scenario())
 	_expect(String(battle.outcome) in ["victory", "defeat", "timeout"], "a region-one battle resolves")
 	_expect(not Array(battle.journal).is_empty(), "the enemies act in the battle")
 	_expect(crosswind >= 1, "EN-R1-09 signature is observed in a real battle (%d)" % crosswind)
@@ -73,6 +73,35 @@ func _verify_profiles() -> void:
 		_expect(not Dictionary(row.get("action", {})).is_empty(), "%s declares an action" % enemy_id)
 
 
+func _run_crosswind_scenario() -> Dictionary:
+	# Focused fixture: an ally pulls the rear scribe forward so its on_advance
+	# line window opens inside a real battle.
+	var simulation: ABGBattleSimulation = Simulation.new()
+	var front := Authoring.enemy_row("EN-R1-01", "ordinary", 1)
+	front["id"] = "enemy-EN-R1-01"
+	front["position"] = 0
+	front["profession_id"] = ""
+	front["action"] = Dictionary(EnemyActions.profile("EN-R1-01").get("action", {}))
+	front["profession_table"] = {}
+	front["equipment_hooks"] = [EnemyActions.hook_row("EN-R1-01")]
+	var scribe := Authoring.enemy_row("EN-R1-09", "ordinary", 1)
+	scribe["id"] = "enemy-EN-R1-09"
+	scribe["position"] = 1
+	scribe["profession_id"] = ""
+	scribe["action"] = Dictionary(EnemyActions.profile("EN-R1-09").get("action", {}))
+	scribe["profession_table"] = {}
+	scribe["equipment_hooks"] = [EnemyActions.hook_row("EN-R1-09")]
+	var puller := {"id": "ally-puller", "position": 0, "level": 4, "profession_id": "",
+		"trait_ids": [], "might": 10, "finesse": 10, "insight": 10, "vigor": 20, "resolve": 10,
+		"profession_base_hp": 600, "profession_base_tempo": 30, "profession_base_initiative": 20,
+		"weapon_power": 2, "focus_power": 2, "armor_guard": 6, "armor_ward": 6,
+		"profession_table": {},
+		"action": {"base": 1, "coefficient": 0.1, "power_source": "physical_power", "reach": 1,
+			"kind": "damage", "target": "rearmost", "pull": 1}}
+	simulation.setup("crosswind-scenario", [puller], [front, scribe])
+	return simulation.run()
+
+
 func _run_region_one() -> Dictionary:
 	var simulation: ABGBattleSimulation = Simulation.new()
 	var enemies: Array = []