Initial commit with Email Import Wizard and Task Processor updates

paperless-backend/src/database/entities/content.entity.ts

@@ -0,0 +1,22 @@
+import { Entity, PrimaryGeneratedColumn, Column, OneToOne, JoinColumn, Index } from 'typeorm';
+import { Attachment } from './attachment.entity';
+
+@Entity('Contents')
+export class Content {
+  @PrimaryGeneratedColumn({ type: 'int' })
+  Id!: number;
+
+  @Index('IX_Contents_AttachmentEntityId', { unique: true })
+  @Column({ type: 'int' })
+  AttachmentEntityId!: number;
+
+  @Column({ name: 'Content', type: 'longblob' })
+  Content1!: Buffer;
+
+  @Column({ type: 'bigint' })
+  ContentLength!: number;
+
+  @OneToOne(() => Attachment, (attachment) => attachment.Content)
+  @JoinColumn({ name: 'AttachmentEntityId' })
+  AttachmentEntity!: Attachment;
+}