refactor: use unimport built-in type gen for dirs

examples/auto-imports/nitro.config.ts

@@ -0,0 +1,3 @@
+import { defineNitroConfig } from "nitropack";
+
+export default defineNitroConfig({});

examples/auto-imports/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "example-auto-imports",
+  "private": true,
+  "scripts": {
+    "dev": "nitro dev",
+    "build": "nitro build"
+  },
+  "devDependencies": {
+    "nitropack": "latest"
+  }
+}

examples/auto-imports/routes/index.ts

@@ -0,0 +1 @@
+export default defineEventHandler(() => `<h1>${makeGreeting('Nitro')}</h1>`);

examples/auto-imports/tsconfig.json

@@ -0,0 +1,3 @@
+{
+  "extends": "./.nitro/types/tsconfig.json"
+}

examples/auto-imports/utils/hello.ts

@@ -0,0 +1,3 @@
+export function makeGreeting(name: string) {
+  return `Hello, ${name}!`;
+}

package.json

@@ -102,7 +102,7 @@
     "std-env": "^3.3.2",
     "ufo": "^1.1.0",
     "unenv": "^1.2.1",
-    "unimport": "^3.0.1",
+    "unimport": "^3.0.2",
     "unstorage": "^1.1.5"
   },
   "devDependencies": {

src/build.ts

@@ -95,13 +95,7 @@ export async function writeTypes(nitro: Nitro) {
   let autoImportedTypes: string[] = [];
 
   if (nitro.unimport) {
-    await nitro.unimport.modifyDynamicImports(async () => {
-      const { dirs } = nitro.options.imports as { dirs: string[] };
-      return (await scanDirExports(dirs)).map((i) => ({
-        ...i,
-        from: i.from.replace(/\.ts$/, ""),
-      }));
-    });
+    await nitro.unimport.init();
     autoImportedTypes = [
       (
         await nitro.unimport.generateTypeDeclarations({