feat: 完善文档集管理功能

- 新增文档集保存功能，支持命名和时间戳
   - 实现文档集删除功能
   - 添加文档集列表展示界面
   - 优化文档集 UI 样式和交互

src/panels/helpers/contextHelper.ts

@@ -142,6 +142,39 @@ export function addToDocumentSet(docs: Array<{ path: string; relativePath: strin
   documentSet = [...documentSet, ...docs];
 }
 
-export function saveDocumentSet(docs: Array<{ path: string; relativePath: string }>) {
-  documentSet = docs;
+export function saveDocumentSet(
+  docs: Array<{ path: string; relativePath: string }>,
+  name: string,
+  panel: vscode.WebviewPanel
+) {
+  const newDocSet = {
+    id: Date.now().toString(),
+    name,
+    documents: docs,
+    updatedAt: new Date().toISOString(),
+  };
+  documentSets.push(newDocSet);
+  panel.webview.postMessage({
+    command: "documentSetSaved",
+    documentSets: documentSets,
+  });
+}
+
+let documentSets: Array<{
+  id: string;
+  name: string;
+  documents: Array<{ path: string; relativePath: string }>;
+  updatedAt: string;
+}> = [];
+
+export function getDocumentSets() {
+  return documentSets;
+}
+
+export function deleteDocumentSet(id: string, panel: vscode.WebviewPanel) {
+  documentSets = documentSets.filter(ds => ds.id !== id);
+  panel.webview.postMessage({
+    command: "documentSetSaved",
+    documentSets: documentSets,
+  });
 }

src/panels/helpers/messageRouter.ts

@@ -368,7 +368,12 @@ export async function handleWebviewMessage(
 
     case "saveDocumentSet":
       const { saveDocumentSet } = await import("./contextHelper");
-      saveDocumentSet(message.documents || []);
+      saveDocumentSet(message.documents || [], message.name || "", panel);
+      break;
+
+    case "deleteDocumentSet":
+      const { deleteDocumentSet } = await import("./contextHelper");
+      deleteDocumentSet(message.id, panel);
       break;
 
     case "openContextSettings":

src/views/contextSettingsComponent.ts

@@ -110,6 +110,47 @@ export function getContextSettingsComponentStyles(): string {
       font-size: 13px;
     }
 
+    .docset-item {
+      display: flex;
+      align-items: center;
+      gap: 12px;
+      padding: 12px;
+      border: 1px solid var(--vscode-panel-border);
+      border-radius: 6px;
+      margin-bottom: 8px;
+      background: var(--vscode-editor-background);
+    }
+
+    .docset-item:hover {
+      background: var(--vscode-list-hoverBackground);
+    }
+
+    .docset-name {
+      font-size: 13px;
+      font-weight: 500;
+    }
+
+    .docset-meta {
+      font-size: 11px;
+      color: var(--vscode-descriptionForeground);
+      flex: 1;
+    }
+
+    .docset-delete-btn {
+      background: transparent;
+      border: none;
+      color: var(--vscode-foreground);
+      cursor: pointer;
+      padding: 4px;
+      opacity: 0.6;
+      border-radius: 4px;
+    }
+
+    .docset-delete-btn:hover {
+      opacity: 1;
+      background: var(--vscode-toolbar-hoverBackground);
+    }
+
     ${getDocsetDialogStyles()}
   `;
 }

src/views/docsetDialog.ts

@@ -286,6 +286,34 @@ export function getDocsetDialogScript(): string {
       closeDocsetDialog();
     }
 
+    function renderDocumentSets(documentSets) {
+      const listEl = document.getElementById('contextDocsList');
+      if (!listEl) return;
+
+      if (!documentSets || documentSets.length === 0) {
+        listEl.innerHTML = '<div class="context-empty"><p>暂无文档集</p></div>';
+        return;
+      }
+
+      listEl.innerHTML = documentSets.map(ds => \`
+        <div class="docset-item">
+          <div class="docset-name">\${ds.name}</div>
+          <div class="docset-meta">更新于 \${new Date(ds.updatedAt).toLocaleString('zh-CN')}</div>
+          <button class="docset-delete-btn" onclick="deleteDocumentSet('\${ds.id}')">
+            <svg width="14" height="14" viewBox="0 0 16 16" fill="currentColor">
+              <path d="M10 3h3v1h-1v9l-1 1H4l-1-1V4H2V3h3V2a1 1 0 0 1 1-1h3a1 1 0 0 1 1 1v1zM9 2H6v1h3V2zM4 13h7V4H4v9zm2-8H5v7h1V5zm1 0h1v7H7V5zm2 0h1v7H9V5z"/>
+            </svg>
+          </button>
+        </div>
+      \`).join('');
+    }
+
+    function deleteDocumentSet(id) {
+      if (confirm('确定删除此文档集？')) {
+        vscode.postMessage({ command: 'deleteDocumentSet', id });
+      }
+    }
+
     window.addEventListener('message', event => {
       const message = event.data;
       if (message.command === 'filesSelectedForDocset') {
@@ -294,6 +322,8 @@ export function getDocsetDialogScript(): string {
         }
         docsetFiles = [...docsetFiles, ...message.files];
         updateDocsetDisplay();
+      } else if (message.command === 'documentSetSaved') {
+        renderDocumentSets(message.documentSets);
       }
     });
   `;