refactor user preferences and create user auth entity

src/main/entity/user-auth.ts

@@ -0,0 +1,28 @@
+import {
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  CreateDateColumn,
+  UpdateDateColumn,
+} from "typeorm";
+
+@Entity("user_auth")
+export class UserAuth {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @Column("text", { default: "" })
+  accessToken: string;
+
+  @Column("text", { default: "" })
+  refreshToken: string;
+
+  @Column("int", { default: 0 })
+  tokenExpirationTimestamp: number;
+
+  @CreateDateColumn()
+  createdAt: Date;
+
+  @UpdateDateColumn()
+  updatedAt: Date;
+}

src/main/entity/user-preferences.entity.ts

@@ -37,13 +37,4 @@ export class UserPreferences {
 
   @UpdateDateColumn()
   updatedAt: Date;
-
-  @Column("text", { default: "" })
-  accessToken: string;
-
-  @Column("text", { default: "" })
-  refreshToken: string;
-
-  @Column("int", { default: 0 })
-  tokenExpirationTimestamp: number;
 }