feat(ai-web): 完成JPA存储适配

service-ai/database/service_ai_group.sql

@@ -1,9 +1,10 @@
 CREATE TABLE `service_ai_group`
 (
     `id`            bigint       NOT NULL,
+    `created_time`  datetime(6) DEFAULT NULL,
+    `modified_time` datetime(6) DEFAULT NULL,
+    `name`          varchar(255) NOT NULL,
+    `status`        tinyint      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;
+    PRIMARY KEY (`id`)
+) DEFAULT CHARSET=utf8mb4;