Add reference checks and native Repairs for Hass-Cleaner 1.1.0

[dkwolf1]

Summary

• Add the optional Hass-Cleaner Companion integration and native Repairs.
• Check static references across automations, scripts, dashboards, scenes, groups, supported helpers/templates and energy/statistics configuration.
• Show dependency locations, source counts and coverage limitations.
• Revalidate references before registry cleanup.
• Include English/Dutch documentation, translations and exports.

Validation

• Automated Python and JavaScript regression tests.
• Separate companion installation required.
• Live Home Assistant acceptance testing remains required before release.