feat(attr): add vulnerable resist attribute and damage calculation

1. 新增易伤抗性属性vulnerable_res，支持百分比减免易伤附加伤害
2. 实现易伤伤害计算逻辑，支持叠加层数与值覆盖
3. 更新技能与Buff配置，修正灼烧技能描述为易伤效果
4. 新增中毒、减攻Debuff配置与易伤Buff常量定义

assets/script/game/common/config/BuffSet.ts

@@ -51,11 +51,16 @@ export enum DebuffIcon {
  * 新增 debuff 时：1) BuffList 加配置 2) 此处加一行映射。
  */
 export const DEBUFF_ICON_MAP: Record<number, DebuffIcon> = {
-    7002: DebuffIcon.FireDamage,   // 灼烧
-    7003: DebuffIcon.IceDamage,    // 冰冻
-    7004: DebuffIcon.Stun,         // 击晕
+    7002: DebuffIcon.FireDamage,     // 易伤（灼热火球附加）
+    7003: DebuffIcon.IceDamage,      // 冰冻
+    7004: DebuffIcon.Stun,           // 击晕
+    7005: DebuffIcon.Poison,         // 中毒
+    7006: DebuffIcon.AttackDebuff,   // 减攻
 };
 
+/** 易伤 buff 的 id（HeroAtkSystem 结算时按此 id 汇总易伤值） */
+export const VULNERABLE_BUFF_ID = 7002;
+
 /** Buff 静态定义 */
 export interface BuffConfig {
     id: number;
@@ -80,12 +85,13 @@ export const BuffList: Record<number, BuffConfig> = {
         modifiers: [{ attr: Attrs.ap, op: ModOp.Flat, value: 5 }],
         info: "攻击力 +5，持续 10 秒",
     },
-    // 灼烧（DoT，可叠层）
+    // 易伤（灼热火球附加；受到伤害时附加固定值，可被易伤抗性百分比减免）
+    // 注：modifiers.attr 用 hp 仅为占位以通过 aggregateTimedMods 结构校验，实际易伤值由 HeroAtkSystem 按 VULNERABLE_BUFF_ID 直接汇总
     7002: {
-        id: 7002, name: "灼烧", icon: "Stat_Burn",
+        id: 7002, name: "易伤", icon: "Stat_Burn",
         category: BuffCategory.Debuff, duration: 5, max_stack: 5,
-        tick: { interval: 0.5, damage_or_heal: -10, scale_by_ap_pct: 30 },
-        info: "每 0.5 秒受到 10 伤害，可叠加",
+        modifiers: [{ attr: Attrs.hp, op: ModOp.Flat, value: 10 }],
+        info: "受到的伤害附加 10 点易伤，可叠加，持续 5 秒",
     },
     // 冰冻（控制，走统一框架，双写兼容）
     7003: {
@@ -101,6 +107,20 @@ export const BuffList: Record<number, BuffConfig> = {
         is_control: true, control_kind: 'stun',
         info: "击晕目标，无法行动",
     },
+    // 中毒（纯伤害 DoT，可叠层）
+    7005: {
+        id: 7005, name: "中毒", icon: "Stat_PoisonChanceIncrease",
+        category: BuffCategory.Debuff, duration: 5, max_stack: 5,
+        tick: { interval: 0.5, damage_or_heal: -10, scale_by_ap_pct: 30 },
+        info: "每 0.5 秒受到 10 点中毒伤害，可叠加，持续 5 秒",
+    },
+    // 减攻（降低目标攻击力）
+    7006: {
+        id: 7006, name: "减攻", icon: "Stat_Attack_01",
+        category: BuffCategory.Debuff, duration: 5, max_stack: 1,
+        modifiers: [{ attr: Attrs.ap, op: ModOp.Flat, value: -10 }],
+        info: "攻击力降低 10 点，持续 5 秒",
+    },
     // 占卜师战前攻击强化（基础档：+30/5s；高阶通过 buff_value/buff_duration 覆写成长）
     7111: {
         id: 7111, name: "战前强攻", icon: "Stat_Attack_03",

assets/script/game/common/config/HeroAttrs.ts

@@ -38,6 +38,7 @@ export enum Attrs {
     puncture_chance = "puncture_chance", // 穿透概率
     puncture_dmg_bonus = "puncture_dmg_bonus", // 穿透后伤害增量（百分点；最终穿透系数 = PUNCTURE_DMG_RATIO * (1 + bonus/100)）
     wfuny = "wfuny",                // 风怒
+    vulnerable_res = "vulnerable_res",  // 易伤抗性（百分比减免易伤附加伤害）
 }
 
 /**

assets/script/game/common/config/SkillSet.ts

@@ -1,4 +1,4 @@
-// ========== 从 HeroAttrs.ts 导入属性相关定义 ==========
+// ========== 从 HeroAttrs.ts 导入属性相关定义 ==========
 import { Attrs } from "./HeroAttrs";
 
 export enum HSSet {
@@ -311,11 +311,11 @@ export const SkillSet: Record<number, SkillConfig> = {
         DTType: DTType.single, ap: 100, hit_count: 2, hitcd: 0.3, speed: 720, with: 90, ready: 0.2, EAnm: 0, DAnm: "", IType: IType.remote,
         RType: RType.linear, EType: EType.collision, info: "造成攻击力100%的伤害, 高阶技能",
     },
-    // DoT 技能：命中附加灼烧（7002，BuffList 的 Debuff DoT 底座），tick 伤害受施法者 ap 缩放
+    // DoT 技能：命中附加易伤（7002，受到伤害附加固定值，可被易伤抗性减免）
     6104: {
         uuid: 6104, name: "灼热火球", sp_name: "fb-1", icon: "Stat_FireDamage", TGroup: TGroup.Enemy, readyAnm: "", endAnm: "", act: "atk",
         DTType: DTType.single, ap: 80, hit_count: 2, hitcd: 0.3, speed: 720, with: 90, ready: 0.2, EAnm: 0, DAnm: "", IType: IType.remote,
-        RType: RType.bezier, EType: EType.collision, timed_buff_id: 7002, info: "造成攻击力80%的伤害, 命中附加灼烧(5秒内持续掉血)",
+        RType: RType.bezier, EType: EType.collision, timed_buff_id: 7002, info: "造成攻击力80%的伤害, 命中附加易伤(5秒内受到伤害附加固定值)",
     },
     6201: {
         uuid: 6201, name: "陨石术", sp_name: "fb-3", icon: "Stat_Tripleshot", TGroup: TGroup.Enemy, readyAnm: "blues", endAnm: "", act: "max",