新增spine版本支持

src/views/ParticlePanel.vue

@@ -828,6 +828,9 @@
           <label class="export-field">
             <span>Spine 版本</span>
             <select v-model="exportSettings.spineVersion" class="inp export-input">
+              <option value="3.8">Spine 3.8</option>
+              <option value="4.0">Spine 4.0</option>
+              <option value="4.1">Spine 4.1</option>
               <option value="4.2">Spine 4.2</option>
             </select>
           </label>
@@ -840,6 +843,7 @@
             </select>
           </label>
           <div class="export-help">平滑贝塞尔会在误差允许范围内拟合连续运动；出生、死亡、附件切换和突变仍使用阶跃关键帧。</div>
+          <div v-if="exportSettings.spineVersion === '3.8'" class="export-help">Spine 3.8 不支持 4.x 的逐通道数组贝塞尔，导出时会转换为经过容差精简的分段线性关键帧。</div>
 
           <div class="export-fps-row">
             <label class="export-field export-fps-field">
@@ -869,7 +873,7 @@
     </template>
     </div>
 
-    <button type="button" class="export-spine-json" :disabled="exportBusy" :title="exportBusy ? '正在重新计算并烘焙动画' : '导出可重新导入 Spine 4.2 的 JSON'" @click="exportSpineJson">
+    <button type="button" class="export-spine-json" :disabled="exportBusy" :title="exportBusy ? '正在重新计算并烘焙动画' : `导出 Spine ${exportSettings.spineVersion} JSON`" @click="exportSpineJson">
       {{ exportBusy ? '正在准备导出…' : '导出Spine Json' }}
     </button>
     <div v-if="exportMessage" class="export-message" :class="{ error: exportError }">{{ exportMessage }}</div>
@@ -1000,10 +1004,10 @@ async function exportSpineJson() {
   try {
     await prepareExportFrames()
     const result = buildSpineJson({ systems: store.systems as unknown as ParticleSystem[], timeline: store.timeline, settings: exportSettings.value })
-    validateSpineJson(result.text)
+    validateSpineJson(result.text, exportSettings.value.spineVersion)
     downloadSpineJson(result, exportSettings.value.fileName)
     const warning = result.warnings.length ? `；${result.warnings.length} 条资源提示（缺图仍已导出）` : ''
-    exportMessage.value = `已导出 ${result.particleSystemCount} 个粒子系统、${result.animationCount} 个动画、${result.boneCount} 根骨骼${warning}`
+    exportMessage.value = `已导出 Spine ${exportSettings.value.spineVersion}：${result.particleSystemCount} 个粒子系统、${result.animationCount} 个动画、${result.boneCount} 根骨骼${warning}`
   } catch (error) {
     exportError.value = true
     exportMessage.value = error instanceof Error ? error.message : String(error)