feat: 实现计划管理工具和进度条实时更新

- 添加 plan_step_add/remove/update 和 plan_summary_update 事件支持
- 添加 onPhaseProgress 回调，联动独立进度条组件
- 扩展 MessageSegment 接口支持 progress 类型
- 映射 phaseId (sim -> simulation) 适配进度条

src/views/planCard.ts

@@ -211,6 +211,168 @@ export function getPlanCardStyles(): string {
     .plan-actions .custom-submit:hover {
       background: var(--vscode-button-hoverBackground);
     }
+
+    /* 阶段进度条样式 */
+    .phase-progress {
+      display: flex;
+      align-items: center;
+      padding: 12px 16px;
+      background: var(--vscode-sideBar-background);
+      border-bottom: 1px solid var(--vscode-input-border);
+    }
+    .phase-item {
+      display: flex;
+      align-items: center;
+      gap: 6px;
+      font-size: 12px;
+      color: var(--vscode-descriptionForeground);
+    }
+    .phase-item.current {
+      color: var(--vscode-textLink-foreground);
+      font-weight: 600;
+    }
+    .phase-item.completed {
+      color: #4caf50;
+    }
+    .phase-item.skipped {
+      color: var(--vscode-descriptionForeground);
+      opacity: 0.6;
+    }
+    .phase-dot {
+      width: 10px;
+      height: 10px;
+      border-radius: 50%;
+      background: var(--vscode-input-border);
+      flex-shrink: 0;
+    }
+    .phase-dot.current {
+      background: var(--vscode-textLink-foreground);
+      box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.2);
+    }
+    .phase-dot.completed {
+      background: #4caf50;
+    }
+    .phase-dot.skipped {
+      background: var(--vscode-descriptionForeground);
+      opacity: 0.5;
+    }
+    .phase-line {
+      flex: 1;
+      height: 2px;
+      background: var(--vscode-input-border);
+      margin: 0 8px;
+    }
+    .phase-line.completed {
+      background: #4caf50;
+    }
+
+    /* 阶段列表样式 */
+    .plan-phases {
+      font-size: 13px;
+    }
+    .plan-phase {
+      margin-bottom: 12px;
+      border: 1px solid var(--vscode-input-border);
+      border-radius: 6px;
+      overflow: hidden;
+    }
+    .plan-phase:last-child {
+      margin-bottom: 0;
+    }
+    .phase-header {
+      display: flex;
+      align-items: center;
+      gap: 8px;
+      padding: 10px 12px;
+      background: var(--vscode-list-hoverBackground);
+      cursor: pointer;
+      user-select: none;
+    }
+    .phase-header:hover {
+      background: var(--vscode-list-activeSelectionBackground);
+    }
+    .phase-toggle {
+      font-size: 10px;
+      color: var(--vscode-descriptionForeground);
+      transition: transform 0.2s;
+    }
+    .phase-toggle.expanded {
+      transform: rotate(90deg);
+    }
+    .phase-name {
+      flex: 1;
+      font-weight: 500;
+    }
+    .phase-status {
+      font-size: 11px;
+      padding: 2px 8px;
+      border-radius: 10px;
+      background: var(--vscode-badge-background);
+      color: var(--vscode-badge-foreground);
+    }
+    .phase-status.current {
+      background: var(--vscode-textLink-foreground);
+      color: white;
+    }
+    .phase-status.skipped {
+      background: var(--vscode-descriptionForeground);
+      opacity: 0.6;
+    }
+    .phase-status.completed {
+      background: #4caf50;
+      color: white;
+    }
+    .phase-content {
+      padding: 0 12px;
+      max-height: 0;
+      overflow: hidden;
+      transition: max-height 0.3s ease, padding 0.3s ease;
+    }
+    .phase-content.expanded {
+      padding: 12px;
+      max-height: 500px;
+    }
+    .phase-reason {
+      font-size: 12px;
+      color: var(--vscode-descriptionForeground);
+      font-style: italic;
+      margin-bottom: 8px;
+    }
+    .phase-steps {
+      margin: 0;
+      padding: 0;
+      list-style: none;
+    }
+    .phase-step-item {
+      display: flex;
+      align-items: flex-start;
+      gap: 8px;
+      padding: 6px 0;
+      border-bottom: 1px solid var(--vscode-input-border);
+    }
+    .phase-step-item:last-child {
+      border-bottom: none;
+    }
+    .phase-step-checkbox {
+      width: 14px;
+      height: 14px;
+      border: 2px solid var(--vscode-textLink-foreground);
+      border-radius: 3px;
+      flex-shrink: 0;
+      margin-top: 2px;
+    }
+    .phase-step-text {
+      flex: 1;
+    }
+    .phase-step-name {
+      font-weight: 500;
+      color: var(--vscode-foreground);
+    }
+    .phase-step-desc {
+      font-size: 12px;
+      color: var(--vscode-descriptionForeground);
+      margin-top: 2px;
+    }
   `;
 }
 
@@ -330,6 +492,89 @@ export function getPlanCardScript(): string {
       }).join('');
     }
 
+    // 渲染阶段进度条
+    function renderPhaseProgress(phases) {
+      if (!phases || phases.length === 0) return '';
+
+      const phaseNames = { spec: 'Spec', design: 'Design', sim: 'Sim', done: 'Done' };
+      let html = '<div class="phase-progress">';
+
+      phases.forEach((phase, i) => {
+        const name = phaseNames[phase.id] || phase.name || phase.id;
+        const status = phase.status || 'pending';
+
+        html += \`<div class="phase-item \${status}">
+          <span class="phase-dot \${status}"></span>
+          <span>\${name}</span>
+        </div>\`;
+
+        // 添加连接线（最后一个不加）
+        if (i < phases.length - 1) {
+          const lineStatus = (status === 'completed' || status === 'skipped') ? 'completed' : '';
+          html += \`<div class="phase-line \${lineStatus}"></div>\`;
+        }
+      });
+
+      html += '</div>';
+      return html;
+    }
+
+    // 渲染阶段列表（两级结构）
+    function renderPlanPhases(phases) {
+      if (!phases || phases.length === 0) return '';
+
+      const statusLabels = {
+        skipped: '跳过',
+        completed: '已完成',
+        current: '当前',
+        pending: '待执行'
+      };
+
+      return phases.map((phase, i) => {
+        const status = phase.status || 'pending';
+        const statusLabel = statusLabels[status] || status;
+        const isExpanded = status === 'current';
+        const hasSteps = phase.steps && phase.steps.length > 0;
+        const hasReason = phase.reason && status === 'skipped';
+
+        let stepsHtml = '';
+        if (phase.steps && phase.steps.length > 0) {
+          stepsHtml = phase.steps.map(step => \`
+            <li class="phase-step-item">
+              <span class="phase-step-checkbox"></span>
+              <div class="phase-step-text">
+                <div class="phase-step-name">\${step.name || ''}</div>
+                \${step.description ? \`<div class="phase-step-desc">\${step.description}</div>\` : ''}
+              </div>
+            </li>
+          \`).join('');
+        }
+
+        return \`
+          <div class="plan-phase" data-phase-id="\${phase.id}">
+            <div class="phase-header" onclick="togglePhase(this)">
+              <span class="phase-toggle \${isExpanded ? 'expanded' : ''}">▶</span>
+              <span class="phase-name">\${phase.name || phase.id}</span>
+              <span class="phase-status \${status}">\${statusLabel}</span>
+            </div>
+            <div class="phase-content \${isExpanded ? 'expanded' : ''}">
+              \${hasReason ? \`<div class="phase-reason">\${phase.reason}</div>\` : ''}
+              \${hasSteps ? \`<ul class="phase-steps">\${stepsHtml}</ul>\` : ''}
+              \${!hasSteps && !hasReason ? '<div class="phase-reason">暂无步骤</div>' : ''}
+            </div>
+          </div>
+        \`;
+      }).join('');
+    }
+
+    // 切换阶段展开/折叠
+    function togglePhase(header) {
+      const toggle = header.querySelector('.phase-toggle');
+      const content = header.nextElementSibling;
+      toggle.classList.toggle('expanded');
+      content.classList.toggle('expanded');
+    }
+
     // 渲染计划卡片（在 updateSegmentsRealtime 中使用）
     function renderPlanCardInSegment(segment, segmentDiv, answeredQuestions) {
       segmentDiv.className += ' segment-plan';
@@ -342,8 +587,15 @@ export function getPlanCardScript(): string {
         segmentDiv.classList.add('answered');
       }
 
-      // 解析并渲染步骤
-      const stepsHtml = renderPlanSteps(segment.planSteps || []);
+      // 判断是否有 phases（新格式）还是 steps（旧格式）
+      const hasPhases = segment.planPhases && segment.planPhases.length > 0;
+
+      // 渲染阶段进度条和阶段列表（新格式）
+      const progressHtml = hasPhases ? renderPhaseProgress(segment.planPhases) : '';
+      const phasesHtml = hasPhases ? renderPlanPhases(segment.planPhases) : '';
+
+      // 兼容旧格式：渲染步骤列表
+      const stepsHtml = !hasPhases ? renderPlanSteps(segment.planSteps || []) : '';
 
       // 选项按钮
       const options = ['确认执行', '修改计划', '取消'];
@@ -361,9 +613,10 @@ export function getPlanCardScript(): string {
             <span class="plan-icon">${plannerIconSvg}</span>
             <span class="plan-title">\${segment.planTitle || '执行计划'}</span>
           </div>
+          \${progressHtml}
           <div class="plan-body">
             <div class="plan-summary">\${summaryHtml}</div>
-            <div class="plan-steps">\${stepsHtml}</div>
+            \${hasPhases ? \`<div class="plan-phases">\${phasesHtml}</div>\` : \`<div class="plan-steps">\${stepsHtml}</div>\`}
           </div>
           <div class="plan-actions">
             <div class="question-options" data-ask-id="\${segment.askId}">\${optionsHtml}</div>
@@ -424,7 +677,16 @@ export function getPlanCardScript(): string {
     // 渲染计划卡片（在 renderSegments 中使用）
     function renderPlanCardStatic(segment, segmentDiv) {
       segmentDiv.className += ' segment-plan';
-      const stepsHtml = renderPlanSteps(segment.planSteps || []);
+
+      // 判断是否有 phases（新格式）还是 steps（旧格式）
+      const hasPhases = segment.planPhases && segment.planPhases.length > 0;
+
+      // 渲染阶段进度条和阶段列表（新格式）
+      const progressHtml = hasPhases ? renderPhaseProgress(segment.planPhases) : '';
+      const phasesHtml = hasPhases ? renderPlanPhases(segment.planPhases) : '';
+
+      // 兼容旧格式：渲染步骤列表
+      const stepsHtml = !hasPhases ? renderPlanSteps(segment.planSteps || []) : '';
 
       // 渲染 Markdown 格式的摘要
       const summaryHtml = renderPlanMarkdown(segment.planSummary || '');
@@ -435,9 +697,10 @@ export function getPlanCardScript(): string {
             <span class="plan-icon">📋</span>
             <span class="plan-title">\${segment.planTitle || '执行计划'}</span>
           </div>
+          \${progressHtml}
           <div class="plan-body">
             <div class="plan-summary">\${summaryHtml}</div>
-            <div class="plan-steps">\${stepsHtml}</div>
+            \${hasPhases ? \`<div class="plan-phases">\${phasesHtml}</div>\` : \`<div class="plan-steps">\${stepsHtml}</div>\`}
           </div>
           <div class="plan-actions">
             <button class="plan-btn plan-btn-confirm" data-action="confirm">确认执行</button>