feat(editorial): validate publications and preserve partial event updates

src/lib/validators/event.ts

@@ -25,7 +25,11 @@ export const createEventSchema = z.object({
 		emptyToUndefined,
 		z.coerce.number().int().positive().nullable().optional(),
 	),
-	startsAt: z.coerce.date(),
+	startsAt: z.preprocess(
+		(value) =>
+			value == null || typeof value === "boolean" ? undefined : value,
+		z.coerce.date(),
+	),
 	endsAt: z.preprocess(emptyToUndefined, z.coerce.date().nullable().optional()),
 	maxPlayers: z.preprocess(
 		emptyToUndefined,
@@ -45,7 +49,15 @@ export const createEventSchema = z.object({
 	),
 });
 
-export const updateEventSchema = createEventSchema.partial();
+// Zod applies defaults inside optional schemas; partial edits must not reset state.
+export const updateEventSchema = createEventSchema.partial().extend({
+	status: createEventSchema.shape.status.removeDefault().optional(),
+	isRecurring: createEventSchema.shape.isRecurring.removeDefault().optional(),
+	image: z.preprocess(
+		(value) => (value === "" ? null : value),
+		z.string().max(500).nullable().optional(),
+	),
+});
 
 export const eventPrizeSchema = z.object({
 	eventId: z.coerce.number().int().positive(),