feat(emulator): standardize bin build process for consistency (#365)

Make emulator package match the standard CLI package pattern used by
cli, device-profiler, and mqtt-bridge packages. This ensures all CLI
packages build and handle executable permissions identically.

Changes:
- Update tsconfig.json to use rootDir "." instead of "src"
- Include "bin" directory in tsconfig compilation
- Add chmod to build script for dist bin files

Closes #361

Author: groupsky

packages/emulator/package.json

@@ -34,7 +34,7 @@
     "access": "public"
   },
   "scripts": {
-    "build": "npm run build:esm && npm run build:cjs && npm run build:package-json",
+    "build": "npm run build:esm && npm run build:cjs && npm run build:package-json && chmod +x dist/esm/bin/ya-modbus-emulator.js dist/cjs/bin/ya-modbus-emulator.js",
     "clean": "rm -rf dist",
     "test": "jest",
     "build:esm": "../../node_modules/.bin/tsc -p tsconfig.esm.json",

packages/emulator/tsconfig.json

@@ -2,13 +2,13 @@
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
     "outDir": "dist",
-    "rootDir": "src",
+    "rootDir": ".",
     "declaration": true,
     "declarationMap": true,
     "composite": true,
     "module": "ESNext",
     "moduleResolution": "bundler"
   },
-  "include": ["src"],
+  "include": ["src", "bin"],
   "exclude": ["src/**/*.test.ts"]
 }