feat: add vite-layers

vite-layers/test/fixtures/tsconfig-cfg/app/app.config.ts

@@ -0,0 +1,5 @@
+export default {
+  name: 'app',
+  extends: ['../base'],
+  tsConfig: { compilerOptions: { strict: false, lib: ['ESNext'] } },
+}

vite-layers/test/fixtures/tsconfig-cfg/base/app.config.ts

@@ -0,0 +1 @@
+export default { name: 'base', tsConfig: { compilerOptions: { types: ['node'] } } }