feat: 优化项目目录结构

apps/backend/src/blog/entity/Blog.entity.ts

@@ -0,0 +1,50 @@
+import {
+  Column,
+  CreateDateColumn,
+  DeleteDateColumn,
+  Entity,
+  OneToMany,
+  PrimaryGeneratedColumn,
+  UpdateDateColumn,
+} from 'typeorm';
+import { BlogComment } from './BlogComment.entity';
+import { BlogPermission } from '../blog.permission.enum';
+
+/** @todo 考虑后续将权限的数据类型替换为json，以提高查询效率 */
+@Entity()
+export class Blog {
+  @PrimaryGeneratedColumn('uuid')
+  id: string;
+
+  @Column()
+  title: string;
+
+  @Column()
+  description: string;
+
+  @Column()
+  contentUrl: string;
+
+  @Column({ default: 0 })
+  viewCount: number;
+
+  @CreateDateColumn({ precision: 3 })
+  createdAt: Date;
+
+  @UpdateDateColumn({ precision: 3 })
+  updatedAt: Date;
+
+  @DeleteDateColumn({ precision: 3, nullable: true })
+  deletedAt: Date;
+
+  // 权限
+  @Column('simple-array', { default: '' })
+  permissions: BlogPermission[];
+
+  @Column({ nullable: true })
+  password_hash: string | null;
+
+  // 关系
+  @OneToMany(() => BlogComment, (comment) => comment.blog)
+  comments: BlogComment[];
+}