251206:1710 specs: frontend plan P1,P3 wait Verification

backend/src/common/auth/entities/refresh-token.entity.ts

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+import {
+  Entity,
+  Column,
+  PrimaryGeneratedColumn,
+  CreateDateColumn,
+  ManyToOne,
+  JoinColumn,
+} from 'typeorm';
+import { User } from '../../../modules/user/entities/user.entity';
+
+@Entity('refresh_tokens')
+export class RefreshToken {
+  @PrimaryGeneratedColumn({ name: 'token_id' })
+  tokenId!: number;
+
+  @Column({ name: 'user_id' })
+  userId!: number;
+
+  @Column({ name: 'token_hash', length: 255 })
+  tokenHash!: string;
+
+  @Column({ name: 'expires_at' })
+  expiresAt!: Date;
+
+  @Column({ name: 'is_revoked', default: false })
+  isRevoked!: boolean;
+
+  @CreateDateColumn({ name: 'created_at' })
+  createdAt!: Date;
+
+  @Column({ name: 'replaced_by_token', nullable: true, length: 255 })
+  replacedByToken?: string; // For rotation support
+
+  // Relations
+  @ManyToOne(() => User, { onDelete: 'CASCADE' })
+  @JoinColumn({ name: 'user_id' })
+  user?: User;
+}