build: migrate core ts packages to tsdown

packages/@core/composables/build.config.ts

@@ -1,7 +0,0 @@
-import { defineBuildConfig } from 'unbuild';
-
-export default defineBuildConfig({
-  clean: true,
-  declaration: true,
-  entries: ['src/index'],
-});

packages/@core/composables/package.json

@@ -11,7 +11,7 @@
   "license": "MIT",
   "type": "module",
   "scripts": {
-    "build": "pnpm unbuild"
+    "build": "tsdown"
   },
   "files": [
     "dist"
@@ -29,7 +29,7 @@
   "publishConfig": {
     "exports": {
       ".": {
-        "types": "./dist/index.d.ts",
+        "types": "./dist/index.d.mts",
         "default": "./dist/index.mjs"
       }
     }

packages/@core/composables/tsdown.config.ts

@@ -0,0 +1,8 @@
+import { defineConfig } from 'tsdown';
+
+export default defineConfig({
+  clean: true,
+  dts: true,
+  entry: ['src/index.ts'],
+  format: ['esm'],
+});