chore: update build configuration and add npmignore to exclude development files from package distribution

Author: 2noScript

.npmignore

@@ -0,0 +1,16 @@
+# Development files
+src/
+scripts/
+esbuild.config.js
+tsconfig.json
+tsconfig.build.json
+eslint.config.js
+.prettierrc
+.prettierrc.json
+AGENTS.md
+.git/
+.vscode/
+.DS_Store
+
+# Dependencies (đã có trong package.json)
+node_modules/

tsconfig.build.json

@@ -5,7 +5,9 @@
     "emitDeclarationOnly": true,
     "outDir": "./dist",
     "declaration": true,
-    "declarationMap": false
+    "declarationMap": false,
+    "rootDir": "./src",
+    "ignoreDeprecations": "6.0"
   },
   "include": ["src/**/*"]
 }