Add documentation for GitHub Actions workflows #4

	name: Build VSIX

	on:
	push:
	branches:
	- main
	- 'copilot/**'
	pull_request:
	branches:
	- main
	workflow_dispatch:

	jobs:
	build-vscode-extension:
	name: Build VSCode Extension
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version: '22'
	cache: 'npm'
	cache-dependency-path: kotlin-vscode/package-lock.json

	- name: Install dependencies
	working-directory: kotlin-vscode
	run: npm ci

	- name: Compile extension
	working-directory: kotlin-vscode
	run: npm run compile

	- name: Create dummy LSP server archive
	run: \|
	# Create a minimal dummy zip to satisfy the unpack-server script
	mkdir -p /tmp/dummy-lsp
	touch /tmp/dummy-lsp/.gitkeep
	cd /tmp && zip -r dummy-lsp.zip dummy-lsp/

	- name: Package extension
	working-directory: kotlin-vscode
	env:
	LSP_ZIP_PATH: /tmp/dummy-lsp.zip
	run: \|
	# Install vsce globally
	npm install -g @vscode/vsce

	# Get version from package.json
	VERSION=$(node -p "require('./package.json').version")

	# Package the extension
	# The vscode:prepublish script will run which packages the extension and unpacks the dummy server
	vsce package "$VERSION" --out "../kotlin-vscode-${VERSION}.vsix"

	- name: Upload VSIX artifact
	uses: actions/upload-artifact@v4
	with:
	name: vscode-extension
	path: kotlin-vscode-*.vsix
	retention-days: 30

	- name: List generated files
	run: \|
	echo "Generated VSIX files:"
	ls -lh kotlin-vscode-*.vsix

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