.d.tsに移行

package.json

@@ -6,8 +6,8 @@
   "types": "dist/types/index.d.ts",
   "type": "module",
   "scripts": {
-    "build": "tsc && tsc-alias",
-    "prepare": "tsc && tsc-alias"
+    "build": "tsc && tsc-alias && cpx \"src/**/*.d.ts\" dist/types",
+    "prepare": "tsc && tsc-alias && cpx \"src/**/*.d.ts\" dist/types"
   },
   "keywords": [
     "uwuzu",
@@ -27,6 +27,7 @@
   "packageManager": "pnpm@10.17.0",
   "devDependencies": {
     "@types/node": "^25.0.3",
+    "cpx": "^1.5.0",
     "fs": "0.0.1-security",
     "tsc-alias": "^1.8.16",
     "typescript": "^5.9.3",