feat(knowledge): 补充建表语句和脚本

service-ai/database/service_ai_group.sql

@@ -0,0 +1,9 @@
+CREATE TABLE `service_ai_group`
+(
+    `id`            bigint       NOT NULL,
+    `knowledge_id`  bigint       NOT NULL,
+    `name`          varchar(100) NOT NULL,
+    `status`        varchar(10)  NOT NULL DEFAULT 'RUNNING',
+    `created_time`  datetime     NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `modified_time` datetime     NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
+) DEFAULT CHARSET = utf8mb4;