feat: remove createMergedSchema function and update tsdown configuration for cleaner structure

Author: productdevbook

src/internal/create-merged-schema.ts

@@ -17,7 +17,6 @@ export default defineConfig({
     'src/context.ts',
     'src/utils/index.ts',
     'src/routes',
-    'src/internal/index.ts',
     'src/graphql.d.ts',
     'src/ecosystem',
   ],
@@ -33,7 +32,6 @@ export default defineConfig({
     'nitropack/kit',
     'graphql',
     'graphql-yoga',
-    '@graphql-tools/schema',
     'h3',
     '#nitro-internal-virtual/server-defs',
     '#nitro-internal-virtual/server-resolvers',