feat: 添加SEO工具管理页面 - v2.4.1

新增功能:
1. 后台SEO工具管理页面 (/admin/seo-tools)
   - 显示sitemap状态(是否存在、最后更新时间、文件大小)
   - 显示动态sitemap URL并支持一键复制

2. 生成静态sitemap.xml文件 (/api/generate-static-sitemap)
   - 将动态sitemap生成为static/sitemap.xml静态文件
   - 支持手动触发更新
   - 返回URL数量统计信息

3. 通知搜索引擎功能 (/api/notify-search-engines)
   - 支持向Google、Baidu、Bing提交sitemap更新通知
   - 使用各搜索引擎的ping接口
   - 返回每个搜索引擎的提交状态

4. 一键操作
   - 提供"一键生成并通知"功能
   - 自动执行生成sitemap + 通知搜索引擎两个步骤
   - 适合日常SEO维护使用

技术实现:
- 使用Flask路由和@login_required装饰器保护后台接口
- AJAX + fetch API实现前端交互
- Bootstrap 4卡片式UI设计
- 实时显示操作结果，颜色区分成功/失败状态

用户价值:
- 无需手动登录各搜索引擎后台提交sitemap
- 支持批量更新和通知，提升SEO工作效率
- 可视化状态展示，便于监控sitemap更新情况

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

templates/admin/master.html

@@ -79,6 +79,12 @@
             <div class="nav-section">
                 <div class="nav-section-title">系统</div>
                 <ul class="nav-menu">
+                    <li class="nav-item">
+                        <a href="{{ url_for('seo_tools') }}" class="nav-link">
+                            <span class="material-symbols-outlined nav-icon">search</span>
+                            <span class="nav-text">SEO工具</span>
+                        </a>
+                    </li>
                     <li class="nav-item">
                         <a href="{{ url_for('batch_import') }}" class="nav-link">
                             <span class="material-symbols-outlined nav-icon">upload_file</span>

templates/admin/seo_tools.html

@@ -0,0 +1,416 @@
+{% extends 'admin/master.html' %}
+
+{% block head_css %}
+<!-- Font Awesome for icons -->
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
+{% endblock %}
+
+{% block body %}
+<div class="container-fluid">
+    <div class="row">
+        <div class="col-md-12">
+            <h1 class="mb-4">
+                <i class="fa fa-search"></i> SEO工具管理
+            </h1>
+
+            <!-- Sitemap状态卡片 -->
+            <div class="row mb-4">
+                <div class="col-md-6">
+                    <div class="card">
+                        <div class="card-header bg-primary text-white">
+                            <h5 class="mb-0">
+                                <i class="fa fa-sitemap"></i> Sitemap状态
+                            </h5>
+                        </div>
+                        <div class="card-body">
+                            {% if sitemap_info.exists %}
+                            <div class="alert alert-success">
+                                <i class="fa fa-check-circle"></i> 静态sitemap.xml已生成
+                            </div>
+                            <table class="table table-sm">
+                                <tr>
+                                    <th width="40%">最后更新时间：</th>
+                                    <td>{{ sitemap_info.last_updated }}</td>
+                                </tr>
+                                <tr>
+                                    <th>文件大小：</th>
+                                    <td>{{ (sitemap_info.size / 1024) | round(2) }} KB</td>
+                                </tr>
+                                <tr>
+                                    <th>文件路径：</th>
+                                    <td><code>static/sitemap.xml</code></td>
+                                </tr>
+                            </table>
+                            {% else %}
+                            <div class="alert alert-warning">
+                                <i class="fa fa-exclamation-triangle"></i> 静态sitemap.xml尚未生成
+                            </div>
+                            <p class="text-muted mb-0">点击下方按钮生成静态sitemap文件</p>
+                            {% endif %}
+                        </div>
+                    </div>
+                </div>
+
+                <div class="col-md-6">
+                    <div class="card">
+                        <div class="card-header bg-info text-white">
+                            <h5 class="mb-0">
+                                <i class="fa fa-globe"></i> 动态Sitemap
+                            </h5>
+                        </div>
+                        <div class="card-body">
+                            <p>动态sitemap路由始终可用：</p>
+                            <div class="input-group mb-3">
+                                <input type="text" class="form-control" value="{{ request.url_root }}sitemap.xml" readonly>
+                                <button class="btn btn-outline-secondary" type="button" onclick="copyToClipboard('{{ request.url_root }}sitemap.xml')">
+                                    <i class="fa fa-copy"></i> 复制
+                                </button>
+                            </div>
+                            <p class="text-muted small mb-0">
+                                <i class="fa fa-info-circle"></i> 动态sitemap实时反映数据库内容，无需手动生成
+                            </p>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 操作按钮区 -->
+            <div class="row mb-4">
+                <div class="col-md-12">
+                    <div class="card">
+                        <div class="card-header bg-dark text-white">
+                            <h5 class="mb-0">
+                                <i class="fa fa-tools"></i> 快速操作
+                            </h5>
+                        </div>
+                        <div class="card-body">
+                            <div class="row">
+                                <div class="col-md-6 mb-3">
+                                    <h6><i class="fa fa-file-code"></i> 生成静态Sitemap</h6>
+                                    <p class="text-muted small">生成static/sitemap.xml文件，可用于静态服务或下载</p>
+                                    <button id="generateSitemapBtn" class="btn btn-success btn-lg w-100">
+                                        <i class="fa fa-cog"></i> 生成静态sitemap.xml
+                                    </button>
+                                </div>
+
+                                <div class="col-md-6 mb-3">
+                                    <h6><i class="fa fa-bell"></i> 通知搜索引擎</h6>
+                                    <p class="text-muted small">向Google、Baidu、Bing提交sitemap更新通知</p>
+                                    <button id="notifyEnginesBtn" class="btn btn-primary btn-lg w-100">
+                                        <i class="fa fa-paper-plane"></i> 通知搜索引擎更新
+                                    </button>
+                                </div>
+                            </div>
+
+                            <div class="row mt-3">
+                                <div class="col-md-12">
+                                    <button id="doAllBtn" class="btn btn-warning btn-lg w-100">
+                                        <i class="fa fa-rocket"></i> 一键生成并通知（推荐）
+                                    </button>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 操作结果显示区 -->
+            <div class="row">
+                <div class="col-md-12">
+                    <div id="resultArea" class="card" style="display: none;">
+                        <div class="card-header bg-secondary text-white">
+                            <h5 class="mb-0">
+                                <i class="fa fa-history"></i> 操作结果
+                            </h5>
+                        </div>
+                        <div class="card-body" id="resultContent">
+                            <!-- 动态填充内容 -->
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+        </div>
+    </div>
+</div>
+
+<style>
+.card {
+    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+    margin-bottom: 20px;
+}
+
+.btn-lg {
+    padding: 12px 24px;
+    font-size: 16px;
+}
+
+#resultArea {
+    animation: slideDown 0.3s ease-out;
+}
+
+@keyframes slideDown {
+    from {
+        opacity: 0;
+        transform: translateY(-10px);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}
+
+.result-item {
+    padding: 12px;
+    border-left: 4px solid #ddd;
+    margin-bottom: 10px;
+    background: #f8f9fa;
+}
+
+.result-item.success {
+    border-left-color: #28a745;
+    background: #d4edda;
+}
+
+.result-item.error {
+    border-left-color: #dc3545;
+    background: #f8d7da;
+}
+
+.result-item.warning {
+    border-left-color: #ffc107;
+    background: #fff3cd;
+}
+</style>
+
+<script>
+// 复制到剪贴板
+function copyToClipboard(text) {
+    navigator.clipboard.writeText(text).then(() => {
+        alert('已复制到剪贴板！');
+    });
+}
+
+// 禁用按钮
+function disableButtons() {
+    document.querySelectorAll('#generateSitemapBtn, #notifyEnginesBtn, #doAllBtn').forEach(btn => {
+        btn.disabled = true;
+    });
+}
+
+// 启用按钮
+function enableButtons() {
+    document.querySelectorAll('#generateSitemapBtn, #notifyEnginesBtn, #doAllBtn').forEach(btn => {
+        btn.disabled = false;
+    });
+}
+
+// 显示结果
+function showResult(html) {
+    const resultArea = document.getElementById('resultArea');
+    const resultContent = document.getElementById('resultContent');
+    resultContent.innerHTML = html;
+    resultArea.style.display = 'block';
+    resultArea.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
+}
+
+// 生成静态sitemap
+document.getElementById('generateSitemapBtn').addEventListener('click', async function() {
+    disableButtons();
+    const originalText = this.innerHTML;
+    this.innerHTML = '<i class="fa fa-spinner fa-spin"></i> 生成中...';
+
+    try {
+        const response = await fetch('/api/generate-static-sitemap', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json'
+            }
+        });
+
+        const data = await response.json();
+
+        if (data.success) {
+            showResult(`
+                <div class="result-item success">
+                    <h5><i class="fa fa-check-circle"></i> 生成成功</h5>
+                    <p>${data.message}</p>
+                    <table class="table table-sm mt-2">
+                        <tr><th>URL数量：</th><td>${data.total_urls}</td></tr>
+                        <tr><th>文件路径：</th><td><code>${data.file_path}</code></td></tr>
+                        <tr><th>生成时间：</th><td>${data.timestamp}</td></tr>
+                    </table>
+                </div>
+            `);
+            // 刷新页面以更新sitemap状态
+            setTimeout(() => location.reload(), 2000);
+        } else {
+            showResult(`
+                <div class="result-item error">
+                    <h5><i class="fa fa-times-circle"></i> 生成失败</h5>
+                    <p>${data.message}</p>
+                </div>
+            `);
+        }
+    } catch (error) {
+        showResult(`
+            <div class="result-item error">
+                <h5><i class="fa fa-times-circle"></i> 请求失败</h5>
+                <p>网络错误: ${error.message}</p>
+            </div>
+        `);
+    } finally {
+        this.innerHTML = originalText;
+        enableButtons();
+    }
+});
+
+// 通知搜索引擎
+document.getElementById('notifyEnginesBtn').addEventListener('click', async function() {
+    disableButtons();
+    const originalText = this.innerHTML;
+    this.innerHTML = '<i class="fa fa-spinner fa-spin"></i> 通知中...';
+
+    try {
+        const response = await fetch('/api/notify-search-engines', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json'
+            }
+        });
+
+        const data = await response.json();
+
+        if (data.success) {
+            let resultsHtml = `
+                <div class="result-item success">
+                    <h5><i class="fa fa-check-circle"></i> ${data.message}</h5>
+                    <p>Sitemap URL: <code>${data.sitemap_url}</code></p>
+                </div>
+            `;
+
+            data.results.forEach(result => {
+                const statusClass = result.status === 'success' ? 'success' : 'error';
+                const icon = result.status === 'success' ? 'fa-check-circle' : 'fa-exclamation-circle';
+                resultsHtml += `
+                    <div class="result-item ${statusClass}">
+                        <h6><i class="fa ${icon}"></i> ${result.engine}</h6>
+                        <p>${result.message}</p>
+                    </div>
+                `;
+            });
+
+            showResult(resultsHtml);
+        } else {
+            showResult(`
+                <div class="result-item error">
+                    <h5><i class="fa fa-times-circle"></i> 通知失败</h5>
+                    <p>${data.message}</p>
+                </div>
+            `);
+        }
+    } catch (error) {
+        showResult(`
+            <div class="result-item error">
+                <h5><i class="fa fa-times-circle"></i> 请求失败</h5>
+                <p>网络错误: ${error.message}</p>
+            </div>
+        `);
+    } finally {
+        this.innerHTML = originalText;
+        enableButtons();
+    }
+});
+
+// 一键生成并通知
+document.getElementById('doAllBtn').addEventListener('click', async function() {
+    disableButtons();
+    const originalText = this.innerHTML;
+    this.innerHTML = '<i class="fa fa-spinner fa-spin"></i> 处理中...';
+
+    let allResultsHtml = '';
+
+    try {
+        // Step 1: 生成sitemap
+        const sitemapResponse = await fetch('/api/generate-static-sitemap', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json'
+            }
+        });
+
+        const sitemapData = await sitemapResponse.json();
+
+        if (sitemapData.success) {
+            allResultsHtml += `
+                <div class="result-item success">
+                    <h5><i class="fa fa-check-circle"></i> 步骤1：生成sitemap成功</h5>
+                    <p>${sitemapData.message}</p>
+                </div>
+            `;
+
+            // Step 2: 通知搜索引擎
+            const notifyResponse = await fetch('/api/notify-search-engines', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json'
+                }
+            });
+
+            const notifyData = await notifyResponse.json();
+
+            if (notifyData.success) {
+                allResultsHtml += `
+                    <div class="result-item success">
+                        <h5><i class="fa fa-check-circle"></i> 步骤2：${notifyData.message}</h5>
+                    </div>
+                `;
+
+                notifyData.results.forEach(result => {
+                    const statusClass = result.status === 'success' ? 'success' : 'warning';
+                    const icon = result.status === 'success' ? 'fa-check-circle' : 'fa-exclamation-circle';
+                    allResultsHtml += `
+                        <div class="result-item ${statusClass}">
+                            <h6><i class="fa ${icon}"></i> ${result.engine}</h6>
+                            <p>${result.message}</p>
+                        </div>
+                    `;
+                });
+            } else {
+                allResultsHtml += `
+                    <div class="result-item error">
+                        <h5><i class="fa fa-times-circle"></i> 步骤2：通知搜索引擎失败</h5>
+                        <p>${notifyData.message}</p>
+                    </div>
+                `;
+            }
+        } else {
+            allResultsHtml += `
+                <div class="result-item error">
+                    <h5><i class="fa fa-times-circle"></i> 步骤1：生成sitemap失败</h5>
+                    <p>${sitemapData.message}</p>
+                </div>
+            `;
+        }
+
+        showResult(allResultsHtml);
+
+        // 如果全部成功，2秒后刷新页面
+        if (sitemapData.success) {
+            setTimeout(() => location.reload(), 3000);
+        }
+
+    } catch (error) {
+        showResult(`
+            <div class="result-item error">
+                <h5><i class="fa fa-times-circle"></i> 操作失败</h5>
+                <p>网络错误: ${error.message}</p>
+            </div>
+        `);
+    } finally {
+        this.innerHTML = originalText;
+        enableButtons();
+    }
+});
+</script>
+{% endblock %}