- Add logger to all exporters for consistent error handling
- Add Course.Validate() method with ValidationError type
- Create shared test fixtures in internal/testdata
- Refactor config passing: NewArticulateParser now takes *config.Config
- Add NewLoggerFromConfig() factory for logger creation
- Add context cancellation with signal handling (SIGINT/SIGTERM)
- Add godoc examples for loggers and exporters
- Add HTML exporter error path tests
- Add fuzz tests for parser and HTMLCleaner
- Fix markdown output: trim whitespace, collapse blank lines
- Remove test output files from repo
- Add CGO_ENABLED=1 to CI test step for race detection
- Fix docker job needs (remove dependency-review, only runs on PRs)
- Restore .pre-commit-config.yaml for local dev safety
- Rename html_template.html to .gohtml (conventional extension)
- Add GitHub URL and default branch info to AGENTS.md
- Add .dprint.jsonc config
- Various formatting normalization