feat(guild): enable CORS and add members listing API

src/members/members.service.ts

@@ -0,0 +1,20 @@
+import { Injectable } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { Repository } from 'typeorm';
+import { GuildMember } from '../entities/guild-member.entity';
+
+@Injectable()
+export class MembersService {
+  constructor(
+    @InjectRepository(GuildMember)
+    private readonly memberRepo: Repository<GuildMember>,
+  ) {}
+
+  list(guildId?: string) {
+    if (guildId) {
+      return this.memberRepo.find({ where: { guildId, status: 'active' }, order: { createdAt: 'ASC' }, take: 500 });
+    }
+    return this.memberRepo.find({ where: { status: 'active' }, order: { createdAt: 'ASC' }, take: 500 });
+  }
+}
+