fix: loosen the BaseSchema type (#13734)

Author: ascorbic

.changeset/bright-breads-report.md

@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Loosen content layer schema types

packages/astro/types/content.d.ts

@@ -45,22 +45,7 @@ declare module 'astro:content' {
 		has: (key: string) => boolean;
 	}
 
-	type BaseAtomicSchema = import('astro/zod').AnyZodObject;
-
-	type BaseCompositeSchema =
-		| import('astro/zod').ZodUnion<[BaseAtomicSchema, ...BaseAtomicSchema[]]>
-		| import('astro/zod').ZodDiscriminatedUnion<string, BaseAtomicSchema[]>
-		// If we have a union of unions, give up on trying to type-check it all. You're on your own.
-		| import('astro/zod').ZodUnion<[import('astro/zod').ZodUnion<z.any>, ...z.any[]]>;
-
-	type BaseSchemaWithoutEffects =
-		| BaseAtomicSchema
-		| BaseCompositeSchema
-		| import('astro/zod').ZodIntersection<BaseAtomicSchema, BaseAtomicSchema | BaseCompositeSchema>;
-
-	export type BaseSchema =
-		| BaseSchemaWithoutEffects
-		| import('astro/zod').ZodEffects<BaseSchemaWithoutEffects>;
+	export type BaseSchema = import('astro/zod').ZodType
 
 	export type SchemaContext = { image: ImageFunction };