build commonjs and ESM (#10)

package.json

@@ -2,9 +2,17 @@
   "name": "@arklabs/wallet-sdk",
   "version": "0.0.5",
   "description": "Bitcoin wallet SDK with Taproot and Ark integration",
-  "main": "dist/index.js",
-  "types": "dist/index.d.ts",
   "type": "module",
+  "main": "./dist/cjs/index.js",
+  "module": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "import": "./dist/index.js",
+      "require": "./dist/cjs/index.js",
+      "types": "./dist/index.d.ts"
+    }
+  },
   "files": [
     "dist"
   ],
@@ -13,7 +21,7 @@
     "registry": "https://registry.npmjs.org/"
   },
   "scripts": {
-    "build": "tsc",
+    "build": "rm -rf dist && tsc && tsc -p tsconfig.cjs.json",
     "test": "vitest run",
     "test:unit": "vitest run --exclude test/integration.test.ts",
     "test:setup": "node test/setup.js",

tsconfig.cjs.json

@@ -0,0 +1,7 @@
+{
+    "extends": "./tsconfig.json",
+    "compilerOptions": {
+        "module": "commonjs",
+        "outDir": "./dist/cjs"
+    }
+} 

tsconfig.json

@@ -1,22 +1,19 @@
 {
     "compilerOptions": {
         "target": "es2020",
-        "module": "commonjs",
+        "module": "esnext",
+        "moduleResolution": "node",
         "declaration": true,
         "outDir": "./dist",
         "strict": true,
         "esModuleInterop": true,
         "skipLibCheck": true,
         "forceConsistentCasingInFileNames": true,
-        "moduleResolution": "node",
         "resolveJsonModule": true,
         "isolatedModules": true
     },
     "include": [
-        "src",
-        "test/integration.test.ts", 
-        "test/wallet.test.ts", 
-        "test/esplora.test.ts"    
+        "src"
     ],
     "exclude": [
         "node_modules",