refactor(core): Move interrelated entities to @n8n/db (#15050)

packages/@n8n/db/src/entities/workflow-statistics.ts

@@ -0,0 +1,26 @@
+import { Column, Entity, ManyToOne, PrimaryColumn } from '@n8n/typeorm';
+
+import { DateTimeColumn } from './abstract-entity';
+import { StatisticsNames } from './types-db';
+import { WorkflowEntity } from './workflow-entity';
+
+@Entity()
+export class WorkflowStatistics {
+	@Column()
+	count: number;
+
+	@Column()
+	rootCount: number;
+
+	@DateTimeColumn()
+	latestEvent: Date;
+
+	@PrimaryColumn({ length: 128 })
+	name: StatisticsNames;
+
+	@ManyToOne('WorkflowEntity', 'shared')
+	workflow: WorkflowEntity;
+
+	@PrimaryColumn()
+	workflowId: string;
+}