refactor: user avatar color (#17753)

server/src/schema/migrations/1745244781846-AddUserAvatarColorColumn.ts

@@ -0,0 +1,14 @@
+import { Kysely, sql } from 'kysely';
+
+export async function up(db: Kysely<any>): Promise<void> {
+  await sql`ALTER TABLE "users" ADD "avatarColor" character varying;`.execute(db);
+  await sql`
+    UPDATE "users"
+    SET "avatarColor" = "user_metadata"."value"->'avatar'->>'color'
+    FROM "user_metadata"
+    WHERE "users"."id" = "user_metadata"."userId" AND "user_metadata"."key" = 'preferences';`.execute(db);
+}
+
+export async function down(db: Kysely<any>): Promise<void> {
+  await sql`ALTER TABLE "users" DROP COLUMN "avatarColor";`.execute(db);
+}