add-reporter

Guide through adding a new reporter named $ARGUMENTS to MegaLinter.

Steps:

1. Create the class in megalinter/reporters/<Name>Reporter.py extending megalinter.Reporter
2. Implement required methods:

- manageactivation() — check env var like <NAME>REPORTER=true to enable/disable - producereport() — generate the report output - Optionally: initialize(), addreport_item()

1. Register the reporter — check how existing reporters are discovered and loaded in megalinter/MegaLinter.py
2. Reference patterns from existing reporters:

- Simple output: ConsoleReporter.py, TapReporter.py - CI integration: GithubCommentReporter.py, GitlabCommentReporter.py - File output: JsonReporter.py, SarifReporter.py - External service: ApiReporter.py, EmailReporter.py

1. Update documentation — add a docs page describing configuration
2. Update CHANGELOG.md in the repository root (not docs/) — add one line under Reporters in the beta section:

``text - Add <ReporterName>: <what CI system or output format it supports, one sentence> ``

1. Branch naming: use user/add-<reporter-name>-reporter