feat: 重构草稿箱功能

- 数据库添加 drafts 表存储草稿数据
- 草稿箱独立页面，侧边栏添加入口
- 自动保存间隔可配置（2/5/10/30/60秒）
- 草稿可编辑、发布为正式条目、删除
- 编辑时自动保存到服务器数据库

xian_favor/api.py

@@ -174,6 +174,122 @@ def increment_views(item_id):
     return jsonify({'success': False, 'error': '条目不存在'}), 404
 
 
+# ============ Draft 草稿箱 API ============
+
+@app.route('/api/drafts', methods=['GET'])
+def list_drafts():
+    """列出草稿"""
+    limit = int(request.args.get('limit', 50))
+    offset = int(request.args.get('offset', 0))
+    drafts = db.list_drafts(limit=limit, offset=offset)
+    total = db.count_drafts()
+    return jsonify({'success': True, 'data': drafts, 'total': total})
+
+
+@app.route('/api/drafts', methods=['POST'])
+def save_draft():
+    """保存草稿"""
+    data = request.get_json()
+    if not data:
+        return jsonify({'success': False, 'error': '无数据'}), 400
+    
+    draft_id = db.save_draft(
+        type=data.get('type', 'text'),
+        title=data.get('title'),
+        content=data.get('content'),
+        url=data.get('url'),
+        source=data.get('source'),
+        status=data.get('status', 'pending'),
+        priority=data.get('priority', 'medium'),
+        due_date=data.get('due_date'),
+        note=data.get('note'),
+        tags=data.get('tags'),
+        is_starred=data.get('is_starred', False)
+    )
+    
+    draft = db.get_draft(draft_id)
+    return jsonify({'success': True, 'data': draft})
+
+
+@app.route('/api/drafts/<int:draft_id>', methods=['GET'])
+def get_draft(draft_id):
+    """获取草稿"""
+    draft = db.get_draft(draft_id)
+    if draft:
+        return jsonify({'success': True, 'data': draft})
+    return jsonify({'success': False, 'error': '草稿不存在'}), 404
+
+
+@app.route('/api/drafts/<int:draft_id>', methods=['PUT'])
+def update_draft(draft_id):
+    """更新草稿"""
+    data = request.get_json()
+    if not data:
+        return jsonify({'success': False, 'error': '无数据'}), 400
+    
+    if db.update_draft(draft_id, **data):
+        draft = db.get_draft(draft_id)
+        return jsonify({'success': True, 'data': draft})
+    return jsonify({'success': False, 'error': '草稿不存在'}), 404
+
+
+@app.route('/api/drafts/<int:draft_id>', methods=['DELETE'])
+def delete_draft(draft_id):
+    """删除草稿"""
+    if db.delete_draft(draft_id):
+        return jsonify({'success': True})
+    return jsonify({'success': False, 'error': '草稿不存在'}), 404
+
+
+@app.route('/api/drafts/<int:draft_id>/publish', methods=['POST'])
+def publish_draft(draft_id):
+    """将草稿发布为正式条目"""
+    item_id = db.draft_to_item(draft_id)
+    if item_id:
+        item = db.get_item(item_id)
+        return jsonify({'success': True, 'data': item})
+    return jsonify({'success': False, 'error': '草稿不存在'}), 404
+
+
+@app.route('/api/trash', methods=['GET'])
+def list_trash():
+    """列出回收站数据"""
+    limit = int(request.args.get('limit', 50))
+    offset = int(request.args.get('offset', 0))
+    items = db.list_trash(limit=limit, offset=offset)
+    total = db.count_trash()
+    
+    # 为每个条目添加内容统计
+    for item in items:
+        item['content_stats'] = calculate_content_stats(item)
+    
+    return jsonify({'success': True, 'data': items, 'total': total})
+
+
+@app.route('/api/items/<int:item_id>/restore', methods=['POST'])
+def restore_item(item_id):
+    """从回收站恢复数据"""
+    if db.restore_item(item_id):
+        item = db.get_item(item_id)
+        return jsonify({'success': True, 'data': item})
+    return jsonify({'success': False, 'error': '条目不存在'}), 404
+
+
+@app.route('/api/items/<int:item_id>/permanent', methods=['DELETE'])
+def delete_permanently(item_id):
+    """彻底删除数据"""
+    if db.delete_permanently(item_id):
+        return jsonify({'success': True})
+    return jsonify({'success': False, 'error': '条目不存在'}), 404
+
+
+@app.route('/api/trash', methods=['DELETE'])
+def empty_trash():
+    """清空回收站"""
+    deleted_count = db.empty_trash()
+    return jsonify({'success': True, 'deleted_count': deleted_count})
+
+
 @app.route('/api/items/<int:item_id>/done', methods=['POST'])
 def complete_item(item_id):
     """完成待办"""
@@ -699,6 +815,8 @@ INDEX_TEMPLATE = '''
                 <a href="#" onclick="showTagManager(); return false;"><i class="bi bi-tags"></i> 标签管理</a>
                 <a href="#" onclick="showEmailManager(); return false;"><i class="bi bi-envelope"></i> 邮箱管理</a>
                 <a href="#" onclick="showBackupManager(); return false;"><i class="bi bi-archive"></i> 备份管理</a>
+                <a href="#" onclick="showDrafts(); return false;"><i class="bi bi-file-earmark"></i> 草稿箱</a>
+                <a href="#" onclick="showTrash(); return false;"><i class="bi bi-trash"></i> 回收站</a>
             </nav>
         </div>
         
@@ -808,6 +926,7 @@ INDEX_TEMPLATE = '''
                 <h5 class="modal-title">
                     <span id="addModalIcon"></span> 
                     <span id="addModalTitle">添加条目</span>
+                    <span id="draftIndicator" class="badge bg-secondary ms-2" style="display:none;">已自动保存</span>
                 </h5>
                 <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
             </div>
@@ -1322,9 +1441,15 @@ document.addEventListener('DOMContentLoaded', async () => {
     });
     
     // 侧边栏过滤
-    document.querySelectorAll('.sidebar a').forEach(a => {
+    document.querySelectorAll('.sidebar a[data-filter]').forEach(a => {
         a.addEventListener('click', (e) => {
             e.preventDefault();
+            
+            // 如果在回收站视图，先退出
+            if (trashView) {
+                trashView = false;
+            }
+            
             document.querySelectorAll('.sidebar a').forEach(x => x.classList.remove('active'));
             a.classList.add('active');
             
@@ -1485,10 +1610,259 @@ function changeSort() {
 // ============ 添加功能 ============
 
 // 快捷添加按钮
+// ============ 草稿箱 ============
+
+let draftView = false;
+let currentDraftId = null;
+let autoSaveTimer = null;
+let autoSaveDelay = parseInt(localStorage.getItem('autoSaveDelay') || '5') * 1000;  // 默认5秒
+
+// 显示草稿箱
+async function showDrafts() {
+    draftView = true;
+    await loadDrafts();
+    document.querySelectorAll('.sidebar a').forEach(a => a.classList.remove('active'));
+}
+
+// 加载草稿列表
+async function loadDrafts() {
+    const res = await fetch(`${API_BASE}/drafts`);
+    const data = await res.json();
+    
+    if (data.success) {
+        renderDrafts(data.data, data.total);
+    }
+}
+
+// 渲染草稿列表
+function renderDrafts(drafts, total) {
+    const container = document.getElementById('itemList');
+    const paginationContainer = document.getElementById('pagination');
+    paginationContainer.innerHTML = '';
+    
+    let header = `
+        <div class="d-flex justify-content-between align-items-center mb-3">
+            <div>
+                <h5><i class="bi bi-file-earmark"></i> 草稿箱 (${total} 条)</h5>
+                <small class="text-muted">自动保存间隔: 
+                    <select id="autoSaveDelaySelect" onchange="setAutoSaveDelay()" style="width:60px;">
+                        <option value="2" ${autoSaveDelay/1000==2?'selected':''}>2秒</option>
+                        <option value="5" ${autoSaveDelay/1000==5?'selected':''}>5秒</option>
+                        <option value="10" ${autoSaveDelay/1000==10?'selected':''}>10秒</option>
+                        <option value="30" ${autoSaveDelay/1000==30?'selected':''}>30秒</option>
+                        <option value="60" ${autoSaveDelay/1000==60?'selected':''}>60秒</option>
+                    </select>
+                </small>
+            </div>
+            <button class="btn btn-outline-secondary" onclick="hideDrafts()">
+                <i class="bi bi-arrow-left"></i> 返回列表
+            </button>
+        </div>
+    `;
+    
+    if (!drafts.length) {
+        container.innerHTML = header + '<div class="text-center text-muted py-5">草稿箱为空</div>';
+        return;
+    }
+    
+    container.innerHTML = header + drafts.map(draft => `
+        <div class="card type-${draft.type} item-card" style="opacity: 0.85;">
+            <div class="card-body">
+                <div class="d-flex justify-content-between align-items-start">
+                    <div style="flex: 1; min-width: 0;">
+                        <h6 class="card-title text-truncate mb-1">
+                            ${getTypeIcon(draft.type)} ${draft.title || '(无标题)'}
+                        </h6>
+                        <p class="card-text text-muted small mb-0">
+                            ${draft.content ? truncate(draft.content, 50) : draft.url ? truncate(draft.url, 50) : ''}
+                        </p>
+                        <small class="text-muted">保存于: ${formatShortDate(draft.updated_at)}</small>
+                    </div>
+                    <div class="d-flex gap-1">
+                        <button class="btn btn-sm btn-outline-primary" onclick="editDraft(${draft.id})" title="编辑">
+                            <i class="bi bi-pencil"></i>
+                        </button>
+                        <button class="btn btn-sm btn-outline-success" onclick="publishDraft(${draft.id})" title="发布">
+                            <i class="bi bi-send"></i>
+                        </button>
+                        <button class="btn btn-sm btn-outline-danger" onclick="deleteDraft(${draft.id})" title="删除">
+                            <i class="bi bi-trash"></i>
+                        </button>
+                    </div>
+                </div>
+            </div>
+        </div>
+    `).join('');
+}
+
+// 设置自动保存间隔
+function setAutoSaveDelay() {
+    const delay = parseInt(document.getElementById('autoSaveDelaySelect').value);
+    autoSaveDelay = delay * 1000;
+    localStorage.setItem('autoSaveDelay', delay.toString());
+}
+
+// 隐藏草稿箱
+function hideDrafts() {
+    draftView = false;
+    currentDraftId = null;
+    refreshData();
+    document.querySelector('.sidebar a[data-filter="all"]').classList.add('active');
+}
+
+// 编辑草稿（恢复到添加表单）
+async function editDraft(draftId) {
+    const res = await fetch(`${API_BASE}/drafts/${draftId}`);
+    const data = await res.json();
+    
+    if (data.success) {
+        const draft = data.data;
+        currentDraftId = draftId;
+        
+        // 打开对应的添加弹框
+        showAddModal(draft.type);
+        
+        // 填充数据
+        setTimeout(() => {
+            document.getElementById('addTitle').value = draft.title || '';
+            if (draft.type === 'text') {
+                document.getElementById('addContent').value = draft.content || '';
+            }
+            if (['link', 'column'].includes(draft.type)) {
+                document.getElementById('addUrl').value = draft.url || '';
+            }
+            if (draft.type === 'column') {
+                document.getElementById('addSource').value = draft.source || '';
+            }
+            if (draft.type === 'todo') {
+                document.getElementById('addStatus').value = draft.status || 'pending';
+                document.getElementById('addPriority').value = draft.priority || 'medium';
+                document.getElementById('addDueDate').value = draft.due_date || '';
+            }
+            document.getElementById('addNote').value = draft.note || '';
+            document.getElementById('addTags').value = draft.tags || '';
+            document.getElementById('addStarred').checked = draft.is_starred || false;
+            
+            showDraftIndicator();
+        }, 100);
+    }
+}
+
+// 发布草稿（转为正式条目）
+async function publishDraft(draftId) {
+    if (!confirm('确认发布这条草稿？')) return;
+    
+    const res = await fetch(`${API_BASE}/drafts/${draftId}/publish`, { method: 'POST' });
+    const data = await res.json();
+    
+    if (data.success) {
+        alert('草稿已发布！');
+        loadDrafts();
+        loadStats();
+    } else {
+        alert('发布失败: ' + data.error);
+    }
+}
+
+// 删除草稿
+async function deleteDraft(draftId) {
+    if (!confirm('确认删除这条草稿？')) return;
+    
+    const res = await fetch(`${API_BASE}/drafts/${draftId}`, { method: 'DELETE' });
+    const data = await res.json();
+    
+    if (data.success) {
+        loadDrafts();
+        loadStats();
+    } else {
+        alert('删除失败: ' + data.error);
+    }
+}
+
+// 保存草稿到服务器
+async function saveDraftToServer() {
+    const type = document.getElementById('addType')?.value;
+    if (!type) return;
+    
+    const data = {
+        type,
+        title: document.getElementById('addTitle')?.value || '',
+        content: type === 'text' ? document.getElementById('addContent')?.value : null,
+        url: ['link', 'column'].includes(type) ? document.getElementById('addUrl')?.value : null,
+        source: type === 'column' ? document.getElementById('addSource')?.value : null,
+        status: type === 'todo' ? document.getElementById('addStatus')?.value : null,
+        priority: type === 'todo' ? document.getElementById('addPriority')?.value : null,
+        due_date: type === 'todo' ? document.getElementById('addDueDate')?.value : null,
+        note: document.getElementById('addNote')?.value || '',
+        tags: document.getElementById('addTags')?.value || '',
+        is_starred: document.getElementById('addStarred')?.checked || false
+    };
+    
+    // 只在有内容时保存
+    if (!data.title && !data.content && !data.url && !data.note) return;
+    
+    try {
+        if (currentDraftId) {
+            // 更新现有草稿
+            await fetch(`${API_BASE}/drafts/${currentDraftId}`, {
+                method: 'PUT',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify(data)
+            });
+        } else {
+            // 创建新草稿
+            const res = await fetch(`${API_BASE}/drafts`, {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify(data)
+            });
+            const result = await res.json();
+            if (result.success) {
+                currentDraftId = result.data.id;
+            }
+        }
+        showDraftIndicator();
+    } catch (e) {
+        console.error('保存草稿失败:', e);
+    }
+}
+
+// 启动自动保存
+function startAutoSave() {
+    // 立即保存一次
+    saveDraftToServer();
+    
+    // 设置定时保存
+    autoSaveTimer = setInterval(saveDraftToServer, autoSaveDelay);
+}
+
+// 停止自动保存
+function stopAutoSave() {
+    if (autoSaveTimer) {
+        clearInterval(autoSaveTimer);
+        autoSaveTimer = null;
+    }
+}
+
+// 显示草稿指示器
+function showDraftIndicator() {
+    const indicator = document.getElementById('draftIndicator');
+    if (indicator) indicator.style.display = 'inline';
+}
+
+// 隐藏草稿指示器
+function hideDraftIndicator() {
+    const indicator = document.getElementById('draftIndicator');
+    if (indicator) indicator.style.display = 'none';
+}
+
 function showAddModal(type) {
     // 设置类型
     document.getElementById('addType').value = type;
     
+    // 重置草稿ID
+    currentDraftId = null;
+    
     // 设置弹窗标题和图标
     const typeInfo = {
         text: { icon: '📝', title: '添加文本' },
@@ -1506,11 +1880,23 @@ function showAddModal(type) {
     document.getElementById('sourceGroup').style.display = type === 'column' ? 'block' : 'none';
     document.getElementById('todoFields').style.display = type === 'todo' ? 'block' : 'none';
     
-    // 清空表单
+    // 清空表单（如果不是从草稿恢复）
-    document.getElementById('addForm').reset();
+    if (!currentDraftId) {
+        document.getElementById('addForm').reset();
+        hideDraftIndicator();
+    }
     
     // 打开弹窗
     new bootstrap.Modal(document.getElementById('addModal')).show();
+    
+    // 启动自动保存
+    startAutoSave();
+    
+    // 弹框关闭时停止自动保存
+    document.getElementById('addModal').addEventListener('hidden.bs.modal', () => {
+        stopAutoSave();
+        currentDraftId = null;  // 重置草稿ID
+    }, { once: true });
 }
 
 // 添加条目
@@ -1539,6 +1925,15 @@ async function addItem() {
     if (res.ok) {
         bootstrap.Modal.getInstance(document.getElementById('addModal')).hide();
         document.getElementById('addForm').reset();
+        
+        // 成功添加后删除草稿
+        if (currentDraftId) {
+            await fetch(`${API_BASE}/drafts/${currentDraftId}`, { method: 'DELETE' });
+            currentDraftId = null;
+        }
+        
+        stopAutoSave();
+        hideDraftIndicator();
         refreshData();
     }
 }
@@ -2271,6 +2666,134 @@ async function showEmailManager() {
     new bootstrap.Modal(document.getElementById('emailManagerModal')).show();
 }
 
+// ============ 回收站 ============
+
+let trashView = false;
+
+async function showTrash() {
+    trashView = true;
+    await loadTrash();
+    
+    // 更新侧边栏状态
+    document.querySelectorAll('.sidebar a').forEach(a => a.classList.remove('active'));
+}
+
+async function loadTrash() {
+    const res = await fetch(`${API_BASE}/trash`);
+    const data = await res.json();
+    
+    if (data.success) {
+        renderTrash(data.data, data.total);
+    }
+}
+
+function renderTrash(items, total) {
+    const container = document.getElementById('itemList');
+    const paginationContainer = document.getElementById('pagination');
+    
+    // 清空分页
+    paginationContainer.innerHTML = '';
+    
+    // 显示回收站标题和操作按钮
+    let header = `
+        <div class="d-flex justify-content-between align-items-center mb-3">
+            <div>
+                <h5><i class="bi bi-trash"></i> 回收站 (${total} 条数据)</h5>
+                <small class="text-muted">回收站数据可随时恢复或彻底删除</small>
+            </div>
+            <div>
+                <button class="btn btn-outline-secondary" onclick="hideTrash()">
+                    <i class="bi bi-arrow-left"></i> 返回列表
+                </button>
+                ${total > 0 ? `<button class="btn btn-outline-danger ms-2" onclick="emptyTrash()">
+                    <i class="bi bi-trash-fill"></i> 清空回收站
+                </button>` : ''}
+            </div>
+        </div>
+    `;
+    
+    if (!items.length) {
+        container.innerHTML = header + '<div class="text-center text-muted py-5">回收站为空</div>';
+        return;
+    }
+    
+    container.innerHTML = header + items.map(item => `
+        <div class="card type-${item.type} item-card" style="opacity: 0.7;">
+            <div class="card-body">
+                <div class="d-flex justify-content-between align-items-start">
+                    <div style="flex: 1; min-width: 0;">
+                        <h6 class="card-title text-truncate mb-1">
+                            ${getTypeIcon(item.type)} ${item.title || truncate(item.content || item.url, 30)}
+                        </h6>
+                        <p class="card-text text-muted small mb-0">
+                            删除时间: ${formatShortDate(item.deleted_at)}
+                        </p>
+                    </div>
+                    <div class="d-flex gap-1">
+                        <button class="btn btn-sm btn-outline-success" onclick="restoreItem(${item.id})" title="恢复">
+                            <i class="bi bi-arrow-counterclockwise"></i> 恢复
+                        </button>
+                        <button class="btn btn-sm btn-outline-danger" onclick="deletePermanently(${item.id})" title="彻底删除">
+                            <i class="bi bi-trash-fill"></i>
+                        </button>
+                    </div>
+                </div>
+            </div>
+        </div>
+    `).join('');
+}
+
+async function hideTrash() {
+    trashView = false;
+    refreshData();
+    
+    // 更新侧边栏状态
+    document.querySelector('.sidebar a[data-filter="all"]').classList.add('active');
+}
+
+async function restoreItem(id) {
+    if (!confirm('确认恢复这条数据？')) return;
+    
+    const res = await fetch(`${API_BASE}/items/${id}/restore`, { method: 'POST' });
+    const data = await res.json();
+    
+    if (data.success) {
+        loadTrash();
+        loadStats();
+    } else {
+        alert('恢复失败: ' + data.error);
+    }
+}
+
+async function deletePermanently(id) {
+    if (!confirm('确认彻底删除这条数据？此操作不可恢复！')) return;
+    
+    const res = await fetch(`${API_BASE}/items/${id}/permanent`, { method: 'DELETE' });
+    const data = await res.json();
+    
+    if (data.success) {
+        loadTrash();
+        loadStats();
+    } else {
+        alert('删除失败: ' + data.error);
+    }
+}
+
+async function emptyTrash() {
+    if (!confirm('确认清空回收站？此操作不可恢复！')) return;
+    
+    const res = await fetch(`${API_BASE}/trash`, { method: 'DELETE' });
+    const data = await res.json();
+    
+    if (data.success) {
+        alert(`已清空回收站，删除了 ${data.deleted_count} 条数据`);
+        loadTrash();
+        loadStats();
+    } else {
+        alert('清空失败: ' + data.error);
+    }
+}
+
 // ============ 备份管理 ============
 
 async function showBackupManager() {

xian_favor/db.py

@@ -61,6 +61,8 @@ class Database:
                     note TEXT,
                     is_starred INTEGER DEFAULT 0,
                     views INTEGER DEFAULT 0,
+                    is_deleted INTEGER DEFAULT 0,
+                    deleted_at TEXT,
                     created_at TEXT NOT NULL,
                     updated_at TEXT NOT NULL
                 )
@@ -97,6 +99,26 @@ class Database:
                 )
             """)
             
+            # 草稿表
+            cursor.execute("""
+                CREATE TABLE IF NOT EXISTS drafts (
+                    id INTEGER PRIMARY KEY AUTOINCREMENT,
+                    type TEXT NOT NULL DEFAULT 'text',
+                    title TEXT,
+                    content TEXT,
+                    url TEXT,
+                    source TEXT,
+                    status TEXT DEFAULT 'pending',
+                    priority TEXT DEFAULT 'medium',
+                    due_date TEXT,
+                    note TEXT,
+                    tags TEXT,
+                    is_starred INTEGER DEFAULT 0,
+                    created_at TEXT NOT NULL,
+                    updated_at TEXT NOT NULL
+                )
+            """)
+            
             # 邮件发送记录表
             cursor.execute("""
                 CREATE TABLE IF NOT EXISTS email_logs (
@@ -131,6 +153,16 @@ class Database:
             except sqlite3.OperationalError:
                 cursor.execute("ALTER TABLE items ADD COLUMN views INTEGER DEFAULT 0")
             
+            # 检查并添加 is_deleted 和 deleted_at 字段（兼容旧数据库）
+            try:
+                cursor.execute("SELECT is_deleted FROM items LIMIT 1")
+            except sqlite3.OperationalError:
+                cursor.execute("ALTER TABLE items ADD COLUMN is_deleted INTEGER DEFAULT 0")
+            try:
+                cursor.execute("SELECT deleted_at FROM items LIMIT 1")
+            except sqlite3.OperationalError:
+                cursor.execute("ALTER TABLE items ADD COLUMN deleted_at TEXT")
+            
             conn.commit()
     
     # ============ Item 操作 ============
@@ -192,6 +224,9 @@ class Database:
             params = []
             conditions = []
             
+            # 只显示未删除的数据
+            conditions.append("i.is_deleted = 0")
+            
             # 标签过滤需要JOIN
             if tag:
                 query += " JOIN item_tags it ON i.id = it.item_id JOIN tags t ON it.tag_id = t.id"
@@ -329,13 +364,73 @@ class Database:
             return True
     
     def delete_item(self, item_id: int) -> bool:
-        """删除条目"""
+        """删除条目（移动到回收站）"""
         with self.get_conn() as conn:
             cursor = conn.cursor()
+            now = datetime.now().isoformat()
+            cursor.execute("UPDATE items SET is_deleted = 1, deleted_at = ? WHERE id = ?", (now, item_id))
+            conn.commit()
+            return cursor.rowcount > 0
+    
+    def list_trash(self, limit: int = 50, offset: int = 0) -> List[Dict[str, Any]]:
+        """列出回收站数据"""
+        with self.get_conn() as conn:
+            cursor = conn.cursor()
+            cursor.execute("SELECT * FROM items WHERE is_deleted = 1 ORDER BY deleted_at DESC LIMIT ? OFFSET ?", (limit, offset))
+            items = []
+            for row in cursor.fetchall():
+                item = dict(row)
+                item['tags'] = self._get_item_tags(conn, item['id'])
+                items.append(item)
+            return items
+    
+    def count_trash(self) -> int:
+        """计算回收站数据总数"""
+        with self.get_conn() as conn:
+            cursor = conn.cursor()
+            cursor.execute("SELECT COUNT(*) as count FROM items WHERE is_deleted = 1")
+            return cursor.fetchone()['count']
+    
+    def restore_item(self, item_id: int) -> bool:
+        """从回收站恢复数据"""
+        with self.get_conn() as conn:
+            cursor = conn.cursor()
+            cursor.execute("UPDATE items SET is_deleted = 0, deleted_at = NULL WHERE id = ?", (item_id,))
+            conn.commit()
+            return cursor.rowcount > 0
+    
+    def delete_permanently(self, item_id: int) -> bool:
+        """彻底删除数据（从数据库中删除）"""
+        with self.get_conn() as conn:
+            cursor = conn.cursor()
+            # 删除标签关联
+            cursor.execute("DELETE FROM item_tags WHERE item_id = ?", (item_id,))
+            # 删除邮件发送记录
+            cursor.execute("DELETE FROM email_logs WHERE item_id = ?", (item_id,))
+            # 删除数据
             cursor.execute("DELETE FROM items WHERE id = ?", (item_id,))
             conn.commit()
             return cursor.rowcount > 0
     
+    def empty_trash(self) -> int:
+        """清空回收站"""
+        with self.get_conn() as conn:
+            cursor = conn.cursor()
+            # 获取所有回收站数据ID
+            cursor.execute("SELECT id FROM items WHERE is_deleted = 1")
+            ids = [row['id'] for row in cursor.fetchall()]
+            
+            # 删除所有关联数据
+            for item_id in ids:
+                cursor.execute("DELETE FROM item_tags WHERE item_id = ?", (item_id,))
+                cursor.execute("DELETE FROM email_logs WHERE item_id = ?", (item_id,))
+            
+            # 删除所有回收站数据
+            cursor.execute("DELETE FROM items WHERE is_deleted = 1")
+            deleted_count = cursor.rowcount
+            conn.commit()
+            return deleted_count
+    
     def toggle_star(self, item_id: int) -> bool:
         """切换重点关注状态"""
         with self.get_conn() as conn:
@@ -369,6 +464,109 @@ class Database:
             conn.commit()
             return cursor.rowcount > 0
     
+    # ============ Draft 草稿操作 ============
+    
+    def save_draft(self, type: str = "text", title: str = None, content: str = None,
+                   url: str = None, source: str = None, status: str = "pending",
+                   priority: str = "medium", due_date: str = None, note: str = None,
+                   tags: str = None, is_starred: bool = False) -> int:
+        """保存草稿"""
+        self._ensure_init()
+        now = datetime.now().isoformat()
+        
+        with self.get_conn() as conn:
+            cursor = conn.cursor()
+            cursor.execute("""
+                INSERT INTO drafts (type, title, content, url, source, status, priority, due_date, note, tags, is_starred, created_at, updated_at)
+                VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+            """, (type, title, content, url, source, status, priority, due_date, note, tags, 1 if is_starred else 0, now, now))
+            draft_id = cursor.lastrowid
+            conn.commit()
+            return draft_id
+    
+    def update_draft(self, draft_id: int, **kwargs) -> bool:
+        """更新草稿"""
+        allowed_fields = ['type', 'title', 'content', 'url', 'source', 'status', 'priority', 'due_date', 'note', 'tags', 'is_starred']
+        update_fields = {k: v for k, v in kwargs.items() if k in allowed_fields}
+        
+        if not update_fields:
+            return False
+        
+        now = datetime.now().isoformat()
+        
+        with self.get_conn() as conn:
+            cursor = conn.cursor()
+            cursor.execute("SELECT id FROM drafts WHERE id = ?", (draft_id,))
+            if not cursor.fetchone():
+                return False
+            
+            set_clause = ", ".join(f"{k} = ?" for k in update_fields.keys())
+            set_clause += ", updated_at = ?"
+            values = list(update_fields.values()) + [now, draft_id]
+            cursor.execute(f"UPDATE drafts SET {set_clause} WHERE id = ?", values)
+            conn.commit()
+            return True
+    
+    def list_drafts(self, limit: int = 50, offset: int = 0) -> List[Dict[str, Any]]:
+        """列出草稿"""
+        with self.get_conn() as conn:
+            cursor = conn.cursor()
+            cursor.execute("SELECT * FROM drafts ORDER BY updated_at DESC LIMIT ? OFFSET ?", (limit, offset))
+            return [dict(row) for row in cursor.fetchall()]
+    
+    def count_drafts(self) -> int:
+        """计算草稿总数"""
+        with self.get_conn() as conn:
+            cursor = conn.cursor()
+            cursor.execute("SELECT COUNT(*) as count FROM drafts")
+            return cursor.fetchone()['count']
+    
+    def get_draft(self, draft_id: int) -> Optional[Dict[str, Any]]:
+        """获取单个草稿"""
+        with self.get_conn() as conn:
+            cursor = conn.cursor()
+            cursor.execute("SELECT * FROM drafts WHERE id = ?", (draft_id,))
+            row = cursor.fetchone()
+            return dict(row) if row else None
+    
+    def delete_draft(self, draft_id: int) -> bool:
+        """删除草稿"""
+        with self.get_conn() as conn:
+            cursor = conn.cursor()
+            cursor.execute("DELETE FROM drafts WHERE id = ?", (draft_id,))
+            conn.commit()
+            return cursor.rowcount > 0
+    
+    def draft_to_item(self, draft_id: int) -> Optional[int]:
+        """将草稿转为正式条目"""
+        draft = self.get_draft(draft_id)
+        if not draft:
+            return None
+        
+        # 创建条目
+        tags_list = draft['tags'].split(',') if draft['tags'] else []
+        tags_list = [t.strip() for t in tags_list if t.strip()]
+        
+        item_id = self.create_item(
+            type=draft['type'],
+            title=draft['title'],
+            content=draft['content'],
+            url=draft['url'],
+            source=draft['source'],
+            status=draft['status'],
+            priority=draft['priority'],
+            due_date=draft['due_date'],
+            note=draft['note'],
+            tags=tags_list,
+            is_starred=draft['is_starred']
+        )
+        
+        # 删除草稿
+        if item_id:
+            self.delete_draft(draft_id)
+        
+        return item_id
+    
     # ============ Tag 操作 ============
     
     def create_tag(self, name: str, color: str = "#3498db") -> int: