feat: sync implementation for the user entity (#16234)

* ci: print out typeorm generation changes

* feat: sync implementation for the user entity

wip

---------

Co-authored-by: Jason Rasmussen <jason@rasm.me>

server/src/entities/sync-checkpoint.entity.ts

@@ -0,0 +1,24 @@
+import { SessionEntity } from 'src/entities/session.entity';
+import { SyncEntityType } from 'src/enum';
+import { Column, CreateDateColumn, Entity, ManyToOne, PrimaryColumn, UpdateDateColumn } from 'typeorm';
+
+@Entity('session_sync_checkpoints')
+export class SessionSyncCheckpointEntity {
+  @ManyToOne(() => SessionEntity, { onDelete: 'CASCADE', onUpdate: 'CASCADE' })
+  session?: SessionEntity;
+
+  @PrimaryColumn()
+  sessionId!: string;
+
+  @PrimaryColumn({ type: 'varchar' })
+  type!: SyncEntityType;
+
+  @CreateDateColumn({ type: 'timestamptz' })
+  createdAt!: Date;
+
+  @UpdateDateColumn({ type: 'timestamptz' })
+  updatedAt!: Date;
+
+  @Column()
+  ack!: string;
+}