Add declaration files and point npm to dist.

package.json

@@ -2,7 +2,8 @@
   "name": "@finvis/usxi",
   "version": "1.1.0",
   "description": "",
-  "main": "index.js",
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
   "scripts": {
     "start": "node dist/index.js",
     "build": "tsc",

tsconfig.json

@@ -1,7 +1,8 @@
 {
     "extends": "@tsconfig/node-lts/tsconfig.json",
     "compilerOptions": {
-        "outDir": "dist"
+        "outDir": "dist",
+        "declaration": true,
     },
     "include": ["src"],
     "exclude": ["node_modules"]