fix(types): remove runtime config index signature

Author: onmax

src/runtime/composables/useSafeRuntimeConfig.ts

@@ -1,7 +1,7 @@
 import { useRuntimeConfig } from '#imports'
 
 declare global {
-  interface NuxtSafeRuntimeConfig extends Record<string, unknown> {}
+  interface NuxtSafeRuntimeConfig {}
 }
 
 /**

test/fixtures/server-typing/server/utils/config.ts

@@ -1,5 +1,7 @@
 export function getTypedServerConfig(): { secretKey: string, apiBase: string } {
   const config = useSafeRuntimeConfig()
+  // @ts-expect-error unknown keys must be rejected to catch typos
+  type _InvalidKey = typeof config.notARealConfigKey
 
   const secretKey: string = config.secretKey
   const apiBase: string = config.public.apiBase