refactor: database types (#19624)

server/src/schema/tables/memory-audit.table.ts

@@ -1,10 +1,5 @@
-import { ColumnType } from 'kysely';
 import { PrimaryGeneratedUuidV7Column } from 'src/decorators';
-import { Column, CreateDateColumn, Table } from 'src/sql-tools';
-
-type Timestamp = ColumnType<Date, Date | string, Date | string>;
-type Generated<T> =
-  T extends ColumnType<infer S, infer I, infer U> ? ColumnType<S, I | undefined, U> : ColumnType<T, T | undefined, T>;
+import { Column, CreateDateColumn, Generated, Table, Timestamp } from 'src/sql-tools';
 
 @Table('memories_audit')
 export class MemoryAuditTable {
@@ -18,5 +13,5 @@ export class MemoryAuditTable {
   userId!: string;
 
   @CreateDateColumn({ default: () => 'clock_timestamp()', indexName: 'IDX_memories_audit_deleted_at' })
-  deletedAt!: Timestamp;
+  deletedAt!: Generated<Timestamp>;
 }