Quote enum type names in dev truncate-db DROP TYPE statements.

Matches DROP TABLE identifier quoting so reserved or mixed-case names drop safely.

backend/src/database/utils/drop.ts

@@ -41,7 +41,7 @@ void (async () => {
 
         for (const enumType of enums) {
             try {
-                await initializedDataSource.query(`DROP TYPE IF EXISTS ${enumType.typname} CASCADE;`);
+                await initializedDataSource.query(`DROP TYPE IF EXISTS "${enumType.typname}" CASCADE;`);
 
                 console.info(`Dropped enum: ${enumType.typname}`);
             } catch (error) {