[Documentation] Create Development Scripts Guide

[12mv2]

## Description
Create a detailed guide explaining all npm scripts available in the project, their purposes, and when to use them during development.

### Task Requirements
1. Document each script in package.json
2. Explain when and why to use each script
3. Provide example use cases
4. Include common troubleshooting tips

### Scripts to Document
```json
{
  "build": "npm run compile && webpack --config webpack.config.js",
  "build:prod": "npm run compile && webpack --config webpack.prod.js",
  "compile": "tsc -p ./tsconfig.json",
  "webpack": "webpack",
  "watch": "concurrently \"webpack --watch\" \"tsc -watch -p ./tsconfig.json\"",
  "lint": "eslint src",
  "pretest": "npm run compile",
  "test": "node ./out/test/runTest.js",
  "test:parser-performance": "TEST_SUITE=parser-performance npm run test",
  "package": "vsce package"
}