Add access control rework

server/src/entities/ServerChannelPermissionEntity.ts

@@ -0,0 +1,26 @@
+import {
+  Column,
+  Entity,
+  PrimaryColumn
+} from 'typeorm';
+
+@Entity('server_channel_permissions')
+export class ServerChannelPermissionEntity {
+  @PrimaryColumn('text')
+  serverId!: string;
+
+  @PrimaryColumn('text')
+  channelId!: string;
+
+  @PrimaryColumn('text')
+  targetType!: 'role' | 'user';
+
+  @PrimaryColumn('text')
+  targetId!: string;
+
+  @PrimaryColumn('text')
+  permission!: string;
+
+  @Column('text')
+  value!: 'allow' | 'deny' | 'inherit';
+}