feat: keep track of page contributors (#959)

* WIP

* feat: store and retrieve page contributors

apps/server/src/database/migrations/20250327T145832-add-contributorIds-to-pages.ts

@@ -0,0 +1,12 @@
+import { type Kysely, sql } from 'kysely';
+
+export async function up(db: Kysely<any>): Promise<void> {
+  await db.schema
+    .alterTable('pages')
+    .addColumn('contributor_ids', sql`uuid[]`, (col) => col.defaultTo("{}"))
+    .execute();
+}
+
+export async function down(db: Kysely<any>): Promise<void> {
+  await db.schema.alterTable('pages').dropColumn('contributor_ids').execute();
+}