chore: add package metadata and files constraint for npm publish

Author: metyatech

package.json

@@ -6,6 +6,25 @@
   "bin": {
     "task-tracker": "dist/cli.js"
   },
+  "files": [
+    "dist",
+    "LICENSE",
+    "README.md"
+  ],
+  "publishConfig": {
+    "access": "public"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/metyatech/task-tracker.git"
+  },
+  "bugs": {
+    "url": "https://github.com/metyatech/task-tracker/issues"
+  },
+  "homepage": "https://github.com/metyatech/task-tracker",
+  "engines": {
+    "node": ">=18"
+  },
   "scripts": {
     "build": "tsup",
     "test": "vitest run",