feat(v4.2.1): 文件夹按钮样式优化+新增数据到文件夹功能

- hover文件夹时按钮悬浮在右侧，高度一致
- 新增数据按钮（绿色+）直接添加数据到该文件夹

xian_favor/api.py

@@ -1085,6 +1085,41 @@ INDEX_TEMPLATE = '''
             color: #fff; 
         }
         .folder-list a i { margin-right: 5px; }
+        .folder-list .folder-item {
+            display: flex;
+            align-items: center;
+            padding: 6px 10px;
+            position: relative;
+        }
+        .folder-list .folder-item a {
+            padding: 6px 10px;
+            flex-grow: 1;
+            display: flex;
+            align-items: center;
+        }
+        .folder-list .folder-actions {
+            position: absolute;
+            right: 10px;
+            display: none;
+            gap: 4px;
+            background: #343a40;
+            padding: 4px 8px;
+            border-radius: 4px;
+        }
+        .folder-list .folder-item:hover .folder-actions {
+            display: flex;
+        }
+        .folder-list .folder-actions .btn {
+            padding: 2px 6px;
+            font-size: 12px;
+            line-height: 1;
+        }
+        .folder-list .folder-item:hover {
+            background: #495057;
+        }
+        .folder-list .folder-item:hover a {
+            color: #fff;
+        }
         .folder-action { 
             font-size: 12px; 
             color: #6c757d; 
@@ -1867,29 +1902,30 @@ INDEX_TEMPLATE = '''
     </div>
 </div>
 
-<!-- 新建文件夹模态框 -->
+<!-- 新建/编辑文件夹模态框 -->
 <div class="modal fade" id="newFolderModal" tabindex="-1">
     <div class="modal-dialog">
         <div class="modal-content">
             <div class="modal-header">
-                <h5 class="modal-title"><i class="bi bi-folder-plus"></i> 新建文件夹</h5>
+                <h5 class="modal-title" id="folderModalTitle"><i class="bi bi-folder-plus"></i> 新建文件夹</h5>
                 <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
             </div>
             <div class="modal-body">
                 <input type="hidden" id="newFolderType">
+                <input type="hidden" id="editFolderId">
                 <div class="mb-3">
                     <label class="form-label">文件夹名称</label>
                     <input type="text" id="newFolderName" class="form-control" placeholder="输入文件夹名称">
                 </div>
-                <div class="mb-3">
+                <div class="mb-3" id="folderTypeRow">
                     <label class="form-label">所属类别</label>
                     <input type="text" id="newFolderTypeName" class="form-control" readonly>
                 </div>
             </div>
             <div class="modal-footer">
                 <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
-                <button type="button" class="btn btn-primary" onclick="createFolder()">
-                    <i class="bi bi-check"></i> 创建
+                <button type="button" class="btn btn-primary" onclick="saveFolder()">
+                    <i class="bi bi-check"></i> <span id="folderSaveBtnText">创建</span>
                 </button>
             </div>
         </div>
@@ -2648,6 +2684,9 @@ function showAddModal(type) {
     // 设置类型
     document.getElementById('addType').value = type;
     
+    // 重置文件夹ID（从顶部按钮添加时不指定文件夹）
+    currentAddFolderId = null;
+    
     // 只有不是编辑草稿时才重置
     // currentDraftId 在 editDraft 中已设置，不要覆盖
     
@@ -2704,7 +2743,8 @@ async function addItem() {
         due_date: type === 'todo' ? document.getElementById('addDueDate').value : null,
         note: document.getElementById('addNote').value,
         tags: document.getElementById('addTags').value.split(',').map(t => t.trim()).filter(t => t),
-        is_starred: document.getElementById('addStarred').checked
+        is_starred: document.getElementById('addStarred').checked,
+        folder_id: currentAddFolderId  // 如果从文件夹添加，带上文件夹ID
     };
     
     const res = await fetch(`${API_BASE}/items`, {
@@ -2725,6 +2765,7 @@ async function addItem() {
         
         stopAutoSave();
         hideDraftIndicator();
+        currentAddFolderId = null;  // 重置文件夹ID
         refreshData();
     }
 }
@@ -4173,9 +4214,22 @@ function renderFolderList(type) {
     // if (section) section.classList.add('expanded');  // 已移除
     
     container.innerHTML = folders.map(f => `
-        <a href="#" data-folder="${f.id}" onclick="filterByFolder('${type}', ${f.id}); return false;">
-            <i class="bi bi-folder"></i> ${f.name} <small class="text-muted">(${f.item_count || 0})</small>
-        </a>
+        <div class="d-flex justify-content-between align-items-center folder-item">
+            <a href="#" data-folder="${f.id}" onclick="filterByFolder('${type}', ${f.id}); return false;" class="flex-grow-1">
+                <i class="bi bi-folder"></i> ${f.name} <small class="text-muted">(${f.item_count || 0})</small>
+            </a>
+            <div class="folder-actions">
+                <button class="btn btn-outline-success" onclick="event.stopPropagation(); showAddToFolderModal('${type}', ${f.id}); return false;" title="新增数据到此文件夹">
+                    <i class="bi bi-plus"></i>
+                </button>
+                <button class="btn btn-outline-secondary" onclick="event.stopPropagation(); showEditFolderModal(${f.id}, '${f.name}'); return false;" title="重命名">
+                    <i class="bi bi-pencil"></i>
+                </button>
+                <button class="btn btn-outline-danger" onclick="event.stopPropagation(); deleteFolderConfirm(${f.id}, '${f.name}'); return false;" title="删除">
+                    <i class="bi bi-trash"></i>
+                </button>
+            </div>
+        </div>
     `).join('');
 }
 
@@ -4202,16 +4256,35 @@ async function showNewFolderModal(type) {
     if (!checkOnlineBeforeAction('新建文件夹')) return;
     
     document.getElementById('newFolderType').value = type;
+    document.getElementById('editFolderId').value = '';
     document.getElementById('newFolderName').value = '';
     
     const typeLabels = { text: '📝 文本', link: '🔗 链接', column: '📰 专栏', todo: '✅ 待办' };
     document.getElementById('newFolderTypeName').value = typeLabels[type] || type;
     
+    document.getElementById('folderModalTitle').innerHTML = '<i class="bi bi-folder-plus"></i> 新建文件夹';
+    document.getElementById('folderSaveBtnText').textContent = '创建';
+    document.getElementById('folderTypeRow').style.display = 'block';
+    
     new bootstrap.Modal(document.getElementById('newFolderModal')).show();
 }
 
-async function createFolder() {
-    const type = document.getElementById('newFolderType').value;
+// 显示编辑文件夹模态框
+function showEditFolderModal(folderId, folderName) {
+    document.getElementById('editFolderId').value = folderId;
+    document.getElementById('newFolderName').value = folderName;
+    document.getElementById('newFolderType').value = '';
+    
+    document.getElementById('folderModalTitle').innerHTML = '<i class="bi bi-pencil"></i> 重命名文件夹';
+    document.getElementById('folderSaveBtnText').textContent = '保存';
+    document.getElementById('folderTypeRow').style.display = 'none';
+    
+    new bootstrap.Modal(document.getElementById('newFolderModal')).show();
+}
+
+// 保存文件夹（创建或编辑）
+async function saveFolder() {
+    const editId = document.getElementById('editFolderId').value;
     const name = document.getElementById('newFolderName').value.trim();
     
     if (!name) {
@@ -4219,23 +4292,118 @@ async function createFolder() {
         return;
     }
     
-    const res = await fetch(`${API_BASE}/folders`, {
-        method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({ name, type })
-    });
+    // 离线检查
+    if (!checkOnlineBeforeAction(editId ? '重命名文件夹' : '新建文件夹')) return;
     
+    if (editId) {
+        // 编辑
+        const res = await fetch(`${API_BASE}/folders/${editId}`, {
+            method: 'PUT',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ name })
+        });
+        const data = await res.json();
+        
+        if (data.success) {
+            bootstrap.Modal.getInstance(document.getElementById('newFolderModal')).hide();
+            loadFolders();
+        } else {
+            alert('重命名失败: ' + data.error);
+        }
+    } else {
+        // 创建
+        const type = document.getElementById('newFolderType').value;
+        const res = await fetch(`${API_BASE}/folders`, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ name, type })
+        });
+        const data = await res.json();
+        
+        if (data.success) {
+            bootstrap.Modal.getInstance(document.getElementById('newFolderModal')).hide();
+            loadFolders();
+            loadStats();
+        } else {
+            alert('创建失败: ' + data.error);
+        }
+    }
+}
+
+// 删除文件夹确认
+async function deleteFolderConfirm(folderId, folderName) {
+    // 离线检查
+    if (!checkOnlineBeforeAction('删除文件夹')) return;
+    
+    if (!confirm(`确认删除文件夹"${folderName}"？\n文件夹内的数据将移到未分类。`)) return;
+    
+    const res = await fetch(`${API_BASE}/folders/${folderId}?move_to_root=1`, {
+        method: 'DELETE'
+    });
     const data = await res.json();
     
     if (data.success) {
-        bootstrap.Modal.getInstance(document.getElementById('newFolderModal')).hide();
         loadFolders();
         loadStats();
+        // 如果当前正在过滤该文件夹，返回首页
+        if (currentFilter.folder_id === folderId) {
+            currentFilter.folder_id = null;
+            loadItems(1);
+        }
     } else {
-        alert('创建失败: ' + data.error);
+        alert('删除失败: ' + data.error);
     }
 }
 
+// 显示新增数据到文件夹的模态框
+function showAddToFolderModal(type, folderId) {
+    // 离线检查
+    if (!checkOnlineBeforeAction('添加数据')) return;
+    
+    // 设置类型
+    document.getElementById('addType').value = type;
+    document.getElementById('editFolderId').value = '';  // 重置编辑ID
+    
+    // 设置弹窗标题和图标
+    const typeInfo = {
+        text: { icon: '📝', title: '添加文本' },
+        link: { icon: '🔗', title: '添加链接' },
+        column: { icon: '📰', title: '添加专栏' },
+        todo: { icon: '✅', title: '添加待办' }
+    };
+    
+    document.getElementById('addModalIcon').textContent = typeInfo[type].icon;
+    document.getElementById('addModalTitle').textContent = typeInfo[type].title;
+    
+    // 显示/隐藏对应字段
+    document.getElementById('contentGroup').style.display = type === 'text' ? 'block' : 'none';
+    document.getElementById('urlGroup').style.display = ['link', 'column'].includes(type) ? 'block' : 'none';
+    document.getElementById('sourceGroup').style.display = type === 'column' ? 'block' : 'none';
+    document.getElementById('todoFields').style.display = type === 'todo' ? 'block' : 'none';
+    
+    // 清空表单
+    document.getElementById('addForm').reset();
+    hideDraftIndicator();
+    
+    // 设置默认文件夹（隐藏字段，需要在提交时带上）
+    currentAddFolderId = folderId;
+    
+    // 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并重置文件夹ID
+    document.getElementById('addModal').addEventListener('hidden.bs.modal', () => {
+        stopAutoSave();
+        currentAddFolderId = null;
+    }, { once: true });
+}
+
+// 当前新增时的文件夹ID
+let currentAddFolderId = null;
+
 function filterByFolder(type, folderId) {
     // 更新侧边栏选中状态
     document.querySelectorAll('.sidebar a').forEach(a => a.classList.remove('active'));