feat(reporter): Markdown report generator + package config

[sepehr-safari]

Summary

Creates the @ocpp-debugkit/reporter package with a Markdown report generator.

Closes #24

Changes

New package: packages/reporter/

• src/markdown.ts — generateMarkdownReport() producing:
  • Session overview (station, connector, transaction, start/end, duration, status)
  • Timeline summary (event count, duration, action sequence)
  • Failures (severity emoji, description, event IDs, suggested steps)
  • Suggested next steps (aggregated from all failures)
  • Raw event appendix (compact table)
  • Parse warnings (if any)
• src/types.ts — AnalysisResult input type
• src/markdown.test.ts — 11 tests
• package.json — publish-ready

Verification

• pnpm lint — ✅
• pnpm typecheck — ✅
• pnpm test — ✅ (179 tests)
• pnpm build — ✅
• pnpm format:check — ✅