Fix roadmap issue form to follow GitHub spec

.github/ISSUE_TEMPLATE/roadmap.yaml

@@ -1,8 +1,10 @@
 name: "📘 Development Roadmap Task"
 description: "用于跟踪开发阶段任务、依赖关系与交付进度的标准模板（通用版）"
 title: "[Task] "
-labels: ["roadmap", "development", "tracking"]
-assignees: []
+labels:
+  - "roadmap"
+  - "development"
+  - "tracking"
 
 body:
   - type: dropdown
@@ -11,12 +13,12 @@ body:
       label: "🧩 任务类型 / Task Type"
       description: "请选择此 Issue 的任务类别"
       options:
-        - "Feature — 新功能开发"
-        - "Improvement — 功能优化 / 重构"
-        - "Bugfix — 问题修复 / 技术债清理"
-        - "Documentation — 文档编写 / 更新"
-        - "Testing — 自动化测试 / 覆盖率提升"
-        - "Release — 打包 / 版本发布 / 部署"
+        - label: "Feature — 新功能开发"
+        - label: "Improvement — 功能优化 / 重构"
+        - label: "Bugfix — 问题修复 / 技术债清理"
+        - label: "Documentation — 文档编写 / 更新"
+        - label: "Testing — 自动化测试 / 覆盖率提升"
+        - label: "Release — 打包 / 版本发布 / 部署"
     validations:
       required: true
 
@@ -25,8 +27,7 @@ body:
     attributes:
       label: "📋 概要描述 / Summary"
       description: "简要说明任务目标、背景与核心改动（中英文均可）"
-      placeholder: |
-        e.g. 实现用户角色与权限体系；支持前端展示角色徽章与管理面板入口。
+      placeholder: "e.g. 实现用户角色与权限体系；支持前端展示角色徽章与管理面板入口。"
     validations:
       required: true
 
@@ -37,33 +38,26 @@ body:
       description: "选择本任务依赖的上游任务（可多选，无则留空）"
       multiple: true
       options:
-        - "None"
-        - "Database Migration"
-        - "API Design"
-        - "Backend Service"
-        - "Frontend Integration"
-        - "Testing & QA"
+        - label: "None"
+        - label: "Database Migration"
+        - label: "API Design"
+        - label: "Backend Service"
+        - label: "Frontend Integration"
+        - label: "Testing & QA"
 
   - type: textarea
     id: deliverables
     attributes:
       label: "🎯 交付内容 / Deliverables"
       description: "列出任务完成后预期的可验证成果或文件路径"
-      placeholder: |
-        - 新增 /internal/service/user_metrics.go
-        - 更新 /ui/dashboard/pages/admin.tsx
-        - 补充 /docs/api/users.md
+      placeholder: "- 新增 /internal/service/user_metrics.go\n- 更新 /ui/dashboard/pages/admin.tsx\n- 补充 /docs/api/users.md"
 
   - type: textarea
     id: acceptance
     attributes:
       label: "✅ 验收标准 / Acceptance Criteria"
       description: "描述完成定义 (Definition of Done)，包括代码、测试、文档与功能验证。"
-      placeholder: |
-        - 单元测试通过率 ≥ 80%
-        - 所有 CI 检查通过
-        - 功能验收测试结果符合预期
-        - 文档已更新并合并至主分支
+      placeholder: "- 单元测试通过率 ≥ 80%\n- 所有 CI 检查通过\n- 功能验收测试结果符合预期\n- 文档已更新并合并至主分支"
 
   - type: input
     id: milestone
@@ -79,25 +73,22 @@ body:
       description: "标记所属系统或模块"
       multiple: true
       options:
-        - "backend"
-        - "frontend"
-        - "api"
-        - "database"
-        - "infra"
-        - "ui"
-        - "auth"
-        - "metrics"
-        - "documentation"
-        - "testing"
-        - "ci-cd"
-        - "release"
+        - label: "backend"
+        - label: "frontend"
+        - label: "api"
+        - label: "database"
+        - label: "infra"
+        - label: "ui"
+        - label: "auth"
+        - label: "metrics"
+        - label: "documentation"
+        - label: "testing"
+        - label: "ci-cd"
+        - label: "release"
 
   - type: textarea
     id: risks
     attributes:
       label: "⚠️ 风险与备注 / Risks & Notes"
       description: "记录技术风险、依赖约束或设计决策"
-      placeholder: |
-        - 依赖数据库 schema 迁移
-        - 与其他分支存在冲突风险
-        - 需在部署前完成性能回归测试
+      placeholder: "- 依赖数据库 schema 迁移\n- 与其他分支存在冲突风险\n- 需在部署前完成性能回归测试"