feat: streamline workflow orchestration and chat routing

Add Zhipu web search integration, remove obsolete workflow nodes and resume handling, and separate model, agent, and workflow chat execution.

docs/script/sql/update/2026-07-29-zhipu-web-search-node.sql

@@ -0,0 +1,66 @@
+-- 智谱 Web Search 工作流扩展节点
+-- 内部组件名继续使用 Google，以兼容现有前端组件和已保存流程。
+
+UPDATE `t_workflow_component`
+SET `title` = '网络搜索',
+    `remark` = '调用智谱 Web Search 检索互联网信息',
+    `display_order` = 40,
+    `is_enable` = 1,
+    `is_deleted` = 0,
+    `update_time` = NOW()
+WHERE `name` = 'Google'
+  AND `tenant_id` = '000000';
+
+INSERT INTO `t_workflow_component`
+    (`uuid`, `name`, `title`, `remark`, `display_order`, `is_enable`,
+     `create_time`, `update_time`, `is_deleted`, `tenant_id`)
+SELECT
+    'a7f8c2d44e5b4c83a9d6f103c2b47e18',
+    'Google',
+    '网络搜索',
+    '调用智谱 Web Search 检索互联网信息',
+    40,
+    1,
+    NOW(),
+    NOW(),
+    0,
+    '000000'
+FROM DUAL
+WHERE NOT EXISTS (
+    SELECT 1
+    FROM `t_workflow_component`
+    WHERE `name` = 'Google'
+      AND `tenant_id` = '000000'
+);
+
+UPDATE `sys_config`
+SET `config_name` = '网络搜索节点响应模板',
+    `config_value` = '🔍 网络搜索节点处理完成：',
+    `update_time` = NOW()
+WHERE `config_key` = 'node.googleSearch.template'
+  AND `tenant_id` = '000000';
+
+INSERT INTO `sys_config`
+    (`config_id`, `tenant_id`, `config_name`, `config_key`, `config_value`,
+     `config_type`, `create_dept`, `create_by`, `create_time`, `update_by`,
+     `update_time`, `remark`)
+SELECT
+    2084157200000000003,
+    '000000',
+    '网络搜索节点响应模板',
+    'node.googleSearch.template',
+    '🔍 网络搜索节点处理完成：',
+    'Y',
+    103,
+    1,
+    NOW(),
+    1,
+    NOW(),
+    '智谱 Web Search 工作流扩展节点'
+FROM DUAL
+WHERE NOT EXISTS (
+    SELECT 1
+    FROM `sys_config`
+    WHERE `config_key` = 'node.googleSearch.template'
+      AND `tenant_id` = '000000'
+);