feat: notifications (#17701)

* feat: notifications

* UI works

* chore: pr feedback

* initial fetch and clear notification upon logging out

* fix: merge

---------

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

server/src/schema/tables/notification.table.ts

@@ -0,0 +1,52 @@
+import { UpdatedAtTrigger, UpdateIdColumn } from 'src/decorators';
+import { NotificationLevel, NotificationType } from 'src/enum';
+import { UserTable } from 'src/schema/tables/user.table';
+import {
+  Column,
+  CreateDateColumn,
+  DeleteDateColumn,
+  ForeignKeyColumn,
+  PrimaryGeneratedColumn,
+  Table,
+  UpdateDateColumn,
+} from 'src/sql-tools';
+
+@Table('notifications')
+@UpdatedAtTrigger('notifications_updated_at')
+export class NotificationTable {
+  @PrimaryGeneratedColumn()
+  id!: string;
+
+  @CreateDateColumn()
+  createdAt!: Date;
+
+  @UpdateDateColumn()
+  updatedAt!: Date;
+
+  @DeleteDateColumn()
+  deletedAt?: Date;
+
+  @UpdateIdColumn({ indexName: 'IDX_notifications_update_id' })
+  updateId?: string;
+
+  @ForeignKeyColumn(() => UserTable, { onDelete: 'CASCADE', onUpdate: 'CASCADE', nullable: true })
+  userId!: string;
+
+  @Column({ default: NotificationLevel.Info })
+  level!: NotificationLevel;
+
+  @Column({ default: NotificationLevel.Info })
+  type!: NotificationType;
+
+  @Column({ type: 'jsonb', nullable: true })
+  data!: any | null;
+
+  @Column()
+  title!: string;
+
+  @Column({ type: 'text', nullable: true })
+  description!: string;
+
+  @Column({ type: 'timestamp with time zone', nullable: true })
+  readAt?: Date | null;
+}