fix connect

package.json

 {
   "name": "koishi-plugin-ygocard",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "Koishi Plugin for YGOPro card query",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",

src/plugin.ts

@@ -59,6 +59,10 @@ export class MyPlugin {
     this.ctx = ctx;
     this.config = schemaTransform(YGOCardConfig, config);
     await this.loadDBs();
+    ctx.on('connect', () => this.loadDBs());
+    ctx.on('disconnect', () => {
+      this.dbs.forEach((db) => db.close());
+    });
     ctx
       .command(
         `${this.config.commandName} <cardQuery:string>`,