MCP Debugger

# tests/fixtures/javascript-e2e/app.ts @source-hash: 1cd6846134d9b5e0 @generated: 2026-02-10T00:41:22Z ## Purpose E2E testing fixture for debugging TypeScript applications with source maps. Provides a minimal TypeScript program with a designated breakpoint location for testing debugging capabilities. ## Key Elements - **greeting variable** (L2): String literal constant `'hello world'` with explicit type annotation - **shout variable** (L3): Derived uppercase transformation with `// BREAK_HERE` comment indicating designated breakpoint location - **Console output** (L4): Simple logging of the transformed string ## Dependencies - TypeScript compiler (implicit via .ts extension) - Source map support (implied by E2E debugging context) ## Architecture Notes - Minimal program structure optimized for debugging scenarios - Type annotations demonstrate TypeScript features for testing - Strategic breakpoint placement for E2E test automation - No external dependencies or complex logic - focuses on debugging workflow verification ## Testing Context The `// BREAK_HERE` comment (L3) serves as a marker for automated debugging tests to verify breakpoint functionality in TypeScript environments with source map support.