feat: 添加搜索工具功能（Tavily Search）

- 新增 SearchToolConfig 模型：支持搜索工具配置
- Agent 增加 tools 字段：可配置可用工具列表
- 后台管理增加搜索工具配置页面
- Agent 管理增加工具启用开关
- 网页端增加搜索工具禁用复选框
- WebSocket chat 处理增加搜索调用逻辑
- 默认配置 Tavily Search API

templates/admin_v2/index.html

@@ -42,6 +42,7 @@
             <div class="nav-item active" data-page="llm-providers"><i class="ri-cloud-line"></i> 大模型池</div>
             <div class="nav-item" data-page="agents"><i class="ri-robot-2-line"></i> Agent管理</div>
             <div class="nav-item" data-page="channels"><i class="ri-chat-3-line"></i> 渠道管理</div>
+            <div class="nav-item" data-page="search-tools"><i class="ri-search-line"></i> 搜索工具</div>
             <div class="nav-item" data-page="stats"><i class="ri-bar-chart-box-line"></i> 统计数据</div>
         </div>
     </div>
@@ -109,6 +110,23 @@
             </div>
         </div>
 
+        <!-- 搜索工具 -->
+        <div class="page-section" id="page-search-tools">
+            <div class="page-header"><h2><i class="ri-search-line"></i> 搜索工具配置</h2></div>
+            <div class="card">
+                <div class="card-header d-flex justify-content-between">
+                    <span>搜索工具列表（Tavily、Google等）</span>
+                    <button class="btn btn-primary btn-sm" onclick="showAddSearchToolModal()"><i class="ri-add-line"></i> 添加</button>
+                </div>
+                <div class="card-body">
+                    <table class="table">
+                        <thead><tr><th>名称</th><th>提供商</th><th>API Key</th><th>最大结果</th><th>默认</th><th>状态</th><th>操作</th></tr></thead>
+                        <tbody id="search-tools-list"><tr><td colspan="7" class="text-center">加载中...</td></tr></tbody>
+                    </table>
+                </div>
+            </div>
+        </div>
+
         <!-- 统计 -->
         <div class="page-section" id="page-stats">
             <div class="page-header"><h2><i class="ri-bar-chart-box-line"></i> 统计数据</h2></div>
@@ -152,6 +170,8 @@
             <div class="row mt-3"><div class="col-md-4 form-check"><input type="checkbox" class="form-check-input" id="agent-active" checked><label class="form-check-label">启用</label></div><div class="col-md-4 form-check"><input type="checkbox" class="form-check-input" id="agent-default"><label class="form-check-label">默认</label></div><div class="col-md-4"><label class="form-label">温度覆盖</label><input type="number" class="form-control" id="agent-temperature-override" step="0.1"></div></div>
             <hr><h6>思考功能</h6>
             <div class="thinking-config"><div class="form-check"><input type="checkbox" class="form-check-input" id="agent-enable-thinking" checked><label class="form-check-label">启用思考</label></div><div class="mt-2"><label class="form-label">思考提示词</label><textarea class="form-control" id="agent-thinking-prompt" rows="2"></textarea></div><div class="row mt-2"><div class="col-md-6"><label class="form-label">前缀</label><input type="text" class="form-control" id="agent-thinking-prefix"></div><div class="col-md-6"><label class="form-label">后缀</label><input type="text" class="form-control" id="agent-thinking-suffix"></div></div></div>
+            <hr><h6>工具配置</h6>
+            <div class="thinking-config"><div class="form-check"><input type="checkbox" class="form-check-input" id="agent-tool-search"><label class="form-check-label">启用搜索工具</label></div><small class="text-muted">启用后 Agent 可以使用搜索功能获取实时信息</small></div>
         </form></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="saveAgent()">保存</button></div>
     </div></div></div>
@@ -180,6 +200,22 @@
         <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="saveMatrixConfig()">保存</button></div>
     </div></div></div>
 
+    <!-- Search Tool Modal -->
+    <div class="modal fade" id="searchToolModal"><div class="modal-dialog"><div class="modal-content">
+        <div class="modal-header"><h5 class="modal-title">添加/编辑搜索工具</h5><button type="button" class="btn-close" data-bs-dismiss="modal"></button></div>
+        <div class="modal-body"><form id="search-tool-form">
+            <input type="hidden" id="search-tool-id">
+            <div class="mb-3"><label class="form-label">名称</label><input type="text" class="form-control" id="search-tool-name" value="Tavily Search"></div>
+            <div class="mb-3"><label class="form-label">提供商</label><select class="form-select" id="search-tool-provider"><option value="tavily">Tavily</option><option value="google">Google</option><option value="bing">Bing</option></select></div>
+            <div class="mb-3"><label class="form-label">API Key *</label><input type="text" class="form-control" id="search-tool-api-key" required></div>
+            <div class="mb-3"><label class="form-label">API地址（可选）</label><input type="text" class="form-control" id="search-tool-api-base"></div>
+            <div class="row"><div class="col-md-6"><label class="form-label">最大结果数</label><input type="number" class="form-control" id="search-tool-max-results" value="5"></div><div class="col-md-6"><label class="form-label">搜索深度</label><select class="form-select" id="search-tool-depth"><option value="basic">Basic</option><option value="advanced">Advanced</option></select></div></div>
+            <div class="mt-3 form-check"><input type="checkbox" class="form-check-input" id="search-tool-active" checked><label class="form-check-label">启用</label></div>
+            <div class="mt-2 form-check"><input type="checkbox" class="form-check-input" id="search-tool-default"><label class="form-check-label">设为默认</label></div>
+        </form></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="saveSearchTool()">保存</button></div>
+    </div></div></div>
+
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
     <script>
         // 全局数据
@@ -190,6 +226,7 @@
             if (page === 'llm-providers') loadProviders();
             if (page === 'agents') loadAgents();
             if (page === 'channels') loadChannels();
+            if (page === 'search-tools') loadSearchTools();
             if (page === 'stats') loadStats();
         }
 
@@ -348,11 +385,18 @@
             document.getElementById('agent-thinking-prompt').value = a.thinking_prompt || '';
             document.getElementById('agent-thinking-prefix').value = a.thinking_prefix || '';
             document.getElementById('agent-thinking-suffix').value = a.thinking_suffix || '';
+            // 工具配置
+            const tools = a.tools || [];
+            document.getElementById('agent-tool-search').checked = tools.includes('search');
             new bootstrap.Modal(document.getElementById('agentModal')).show();
         }
 
         async function saveAgent() {
             const id = document.getElementById('agent-id').value;
+            // 处理工具列表
+            const tools = [];
+            if (document.getElementById('agent-tool-search').checked) tools.push('search');
+            
             const data = {
                 name: document.getElementById('agent-name').value,
                 display_name: document.getElementById('agent-display-name').value,
@@ -367,7 +411,8 @@
                 enable_thinking: document.getElementById('agent-enable-thinking').checked,
                 thinking_prompt: document.getElementById('agent-thinking-prompt').value,
                 thinking_prefix: document.getElementById('agent-thinking-prefix').value,
-                thinking_suffix: document.getElementById('agent-thinking-suffix').value
+                thinking_suffix: document.getElementById('agent-thinking-suffix').value,
+                tools: tools  // 工具列表
             };
             const res = await fetch(id ? `/api/v2/agents/${id}` : '/api/v2/agents', { method: id ? 'PUT' : 'POST', headers:{'Content-Type':'application/json'}, body: JSON.stringify(data) });
             const result = await res.json();
@@ -482,6 +527,102 @@
             document.getElementById('stat-agents').textContent = (agentsData.agents || []).length;
         }
 
+        // ===== 搜索工具 =====
+        async function loadSearchTools() {
+            const res = await fetch('/api/v2/search-tools');
+            const data = await res.json();
+            const tools = data.configs || [];
+            const tbody = document.getElementById('search-tools-list');
+            if (tools.length === 0) {
+                tbody.innerHTML = '<tr><td colspan="7" class="text-center text-muted">暂无配置，点击添加按钮创建</td></tr>';
+                return;
+            }
+            tbody.innerHTML = tools.map(t => `
+                <tr>
+                    <td>${t.name}</td>
+                    <td>${t.provider}</td>
+                    <td><small class="text-muted">${t.api_key ? t.api_key.substring(0, 10) + '...' : '-'}</small></td>
+                    <td>${t.max_results}</td>
+                    <td>${t.is_default ? '<i class="ri-check-line text-success"></i>' : ''}</td>
+                    <td>${t.is_active ? '<span class="badge bg-success">启用</span>' : '<span class="badge bg-secondary">禁用</span>'}</td>
+                    <td>
+                        <button class="btn btn-sm btn-outline-primary" onclick="editSearchTool(${t.id})"><i class="ri-edit-line"></i></button>
+                        <button class="btn btn-sm btn-outline-danger" onclick="deleteSearchTool(${t.id})"><i class="ri-delete-bin-line"></i></button>
+                    </td>
+                </tr>
+            `).join('');
+        }
+
+        function showAddSearchToolModal() {
+            document.getElementById('search-tool-id').value = '';
+            document.getElementById('search-tool-name').value = 'Tavily Search';
+            document.getElementById('search-tool-provider').value = 'tavily';
+            document.getElementById('search-tool-api-key').value = '';
+            document.getElementById('search-tool-api-base').value = '';
+            document.getElementById('search-tool-max-results').value = 5;
+            document.getElementById('search-tool-depth').value = 'basic';
+            document.getElementById('search-tool-active').checked = true;
+            document.getElementById('search-tool-default').checked = false;
+            new bootstrap.Modal(document.getElementById('searchToolModal')).show();
+        }
+
+        async function editSearchTool(id) {
+            const res = await fetch('/api/v2/search-tools');
+            const data = await res.json();
+            const tool = (data.configs || []).find(t => t.id === id);
+            if (!tool) return;
+            document.getElementById('search-tool-id').value = tool.id;
+            document.getElementById('search-tool-name').value = tool.name;
+            document.getElementById('search-tool-provider').value = tool.provider;
+            document.getElementById('search-tool-api-key').value = tool.api_key || '';
+            document.getElementById('search-tool-api-base').value = tool.api_base || '';
+            document.getElementById('search-tool-max-results').value = tool.max_results;
+            document.getElementById('search-tool-depth').value = tool.search_depth;
+            document.getElementById('search-tool-active').checked = tool.is_active;
+            document.getElementById('search-tool-default').checked = tool.is_default;
+            new bootstrap.Modal(document.getElementById('searchToolModal')).show();
+        }
+
+        async function saveSearchTool() {
+            const id = document.getElementById('search-tool-id').value;
+            const data = {
+                name: document.getElementById('search-tool-name').value,
+                provider: document.getElementById('search-tool-provider').value,
+                api_key: document.getElementById('search-tool-api-key').value,
+                api_base: document.getElementById('search-tool-api-base').value,
+                max_results: parseInt(document.getElementById('search-tool-max-results').value),
+                search_depth: document.getElementById('search-tool-depth').value,
+                is_active: document.getElementById('search-tool-active').checked,
+                is_default: document.getElementById('search-tool-default').checked
+            };
+            let res;
+            if (id) {
+                res = await fetch(`/api/v2/search-tools/${id}`, { method: 'PUT', headers: {'Content-Type': 'application/json'}, body: JSON.stringify(data) });
+            } else {
+                res = await fetch('/api/v2/search-tools', { method: 'POST', headers: {'Content-Type': 'application/json'}, body: JSON.stringify(data) });
+            }
+            const result = await res.json();
+            if (result.success) {
+                bootstrap.Modal.getInstance(document.getElementById('searchToolModal')).hide();
+                loadSearchTools();
+                alert('保存成功');
+            } else {
+                alert('保存失败: ' + result.message);
+            }
+        }
+
+        async function deleteSearchTool(id) {
+            if (!confirm('确定删除此搜索工具配置？')) return;
+            const res = await fetch(`/api/v2/search-tools/${id}`, { method: 'DELETE' });
+            const result = await res.json();
+            if (result.success) {
+                loadSearchTools();
+                alert('删除成功');
+            } else {
+                alert('删除失败');
+            }
+        }
+
         // ===== 初始化 =====
         document.addEventListener('DOMContentLoaded', function() {
             // 页面切换事件绑定