fix: can save an event type without a slug (calcom#21922)

Author: anikdhabal

packages/prisma/zod-utils.ts

@@ -228,7 +228,13 @@ export type IntervalLimitsType = IntervalLimit | null;
 
 export { intervalLimitsType } from "@calcom/lib/intervalLimits/intervalLimitSchema";
 
-export const eventTypeSlug = z.string().transform((val) => slugify(val.trim()));
+export const eventTypeSlug = z
+  .string()
+  .trim()
+  .transform((val) => slugify(val))
+  .refine((val) => val.length >= 1, {
+    message: "Please enter at least one character",
+  });
 
 export const stringToDate = z.string().transform((a) => new Date(a));