Export AstroConfigType properly as type and not as a Zod schema value

.changeset/green-islands-repeat.md

@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Fix AstroConfigSchema type export

packages/astro/src/@types/astro.ts

@@ -13,10 +13,9 @@ import type { AddressInfo } from 'node:net';
 import type * as rollup from 'rollup';
 import type { TsConfigJson } from 'tsconfig-resolver';
 import type * as vite from 'vite';
-import type { z } from 'zod';
 import type { SerializedSSRManifest } from '../core/app/types';
 import type { PageBuildData } from '../core/build/types';
-import type { AstroConfigSchema } from '../core/config';
+import type { AstroConfigType } from '../core/config';
 import type { AstroTimer } from '../core/config/timer';
 import type { AstroCookies } from '../core/cookies';
 import type { LogOptions, LoggerLevel } from '../core/logger/core';
@@ -1352,7 +1351,7 @@ export interface ResolvedInjectedRoute extends InjectedRoute {
  * Resolved Astro Config
  * Config with user settings along with all defaults filled in.
  */
-export interface AstroConfig extends z.output<typeof AstroConfigSchema> {
+export interface AstroConfig extends AstroConfigType {
 	// Public:
 	// This is a more detailed type than zod validation gives us.
 	// TypeScript still confirms zod validation matches this type.

packages/astro/src/core/config/index.ts

@@ -1,6 +1,6 @@
 export { resolveConfig, resolveConfigPath, resolveFlags, resolveRoot } from './config.js';
 export { createNodeLogging } from './logging.js';
 export { mergeConfig } from './merge.js';
-export type { AstroConfigSchema } from './schema';
+export type { AstroConfigType } from './schema';
 export { createSettings } from './settings.js';
 export { loadTSConfig, updateTSConfigForFramework } from './tsconfig.js';

packages/astro/src/core/config/schema.ts

@@ -266,6 +266,8 @@ export const AstroConfigSchema = z.object({
 	legacy: z.object({}).optional().default({}),
 });
 
+export type AstroConfigType = z.infer<typeof AstroConfigSchema>;
+
 export function createRelativeSchema(cmd: string, fileProtocolRoot: string) {
 	// We need to extend the global schema to add transforms that are relative to root.
 	// This is type checked against the global schema to make sure we still match.