fix reload cdb plugin

src/cdb-loader/cdb-loader.service.ts

-import { ConsoleLogger, Injectable } from '@nestjs/common';
-import { PluginDef, UsePlugin } from 'koishi-nestjs';
+import { ConsoleLogger, Injectable, OnModuleInit } from '@nestjs/common';
+import { InjectContext, PluginDef, UsePlugin } from 'koishi-nestjs';
 import { ConfigService } from '@nestjs/config';
 import path from 'path';
 import fs from 'fs';
 import simpleGit, { ResetMode, SimpleGit } from 'simple-git';
 import YGOCardPlugin from 'koishi-plugin-ygocard';
 import { Cron } from '@nestjs/schedule';
+import { Context, ForkScope } from 'koishi';
 
 async function exists(path: string) {
   try {
@@ -17,13 +18,16 @@ async function exists(path: string) {
 }
 
 @Injectable()
-export class CdbLoaderService extends ConsoleLogger {
+export class CdbLoaderService extends ConsoleLogger implements OnModuleInit {
   private repoUrl = this.config.get<string>('CDB_REPO');
   private repoPath = path.join(process.cwd(), 'ygopro-database');
   private repoBranch = this.config.get<string>('CDB_BRANCH');
   private git: SimpleGit;
 
-  constructor(private config: ConfigService) {
+  constructor(
+    private config: ConfigService,
+    @InjectContext() private ctx: Context,
+  ) {
     super('CdbLoaderService');
   }
 
@@ -39,10 +43,11 @@ export class CdbLoaderService extends ConsoleLogger {
     this.git = simpleGit(this.repoPath);
   }
 
-  @UsePlugin()
-  async load() {
+  private state: ForkScope;
+
+  async onModuleInit() {
     await this.initRepo();
-    return PluginDef(YGOCardPlugin, {
+    this.state = this.ctx.plugin(YGOCardPlugin, {
       databasePaths: [path.join(this.repoPath, 'locales', 'zh-CN')],
       matchCount: 20,
       lang: 'cn',
@@ -55,6 +60,9 @@ export class CdbLoaderService extends ConsoleLogger {
     this.log('Updating repo');
     await this.git.fetch(['origin', this.repoBranch]);
     await this.git.reset(ResetMode.HARD, ['origin/' + this.repoBranch]);
+    if (this.state) {
+      this.state.restart();
+    }
     this.log('Repo updated');
   }
 }