Standardizes code formatting across the repository and establishes Datadog Synthetics CI workflow with correct action version.

Changes

• Code formatting: Ran deno fmt on 7 files (JS, JSON, Markdown) to enforce consistent style

  • Arrow functions now use explicit parameter parentheses
  • Standardized 2-space indentation
  • Added trailing commas where appropriate

• Datadog workflow: Created .github/workflows/datadog-synthetics.yml

  • Uses datadog/[email protected] (v1 tag doesn't exist)
  • Configured for push/PR triggers on main branch
  • Added explicit permissions: contents: read to limit GITHUB_TOKEN scope

Example

// Before
const selections = vscode.window.activeTextEditor.selections
  .map(s => vscode.window.activeTextEditor.document.getText(s))

// After  
const selections = vscode.window.activeTextEditor.selections
  .map((s) => vscode.window.activeTextEditor.document.getText(s))

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