fix: ast package.jsonからbun exports conditionを削除しdistを参照するよう修正

Author: r74tech

packages/ast/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wdprlib/ast",
-  "version": "0.1.4",
+  "version": "0.1.5",
   "description": "AST types for Wikidot markup",
   "keywords": [
     "ast",
@@ -19,12 +19,11 @@
   ],
   "type": "module",
   "sideEffects": false,
-  "main": "./src/index.ts",
-  "module": "./src/index.ts",
-  "types": "./src/index.ts",
+  "main": "./dist/index.cjs",
+  "module": "./dist/index.js",
+  "types": "./dist/index.d.ts",
   "exports": {
     ".": {
-      "bun": "./src/index.ts",
       "import": {
         "types": "./dist/index.d.ts",
         "default": "./dist/index.js"