v1.0.1

Added

• Continuous integration: Validate workflow (hassfest + HACS action) and
  Test workflow (ruff lint/format check + pytest).
• Test suite covering the config flow, entry setup/unload, and the coordinator's
  behaviour on an API error.
• Ruff configuration (pyproject.toml) with a curated lint rule set and isort settings.

Changed

• manifest.json keys sorted to be hassfest-conform (domain/name first, then alphabetical).

Fixed

• First setup with an unreachable API now raises ConfigEntryNotReady (so Home
  Assistant retries) instead of completing setup with empty data.

See the full CHANGELOG.

v1.0.0 — School Holidays

Robuste Schulferien-Sensoren fuer beliebiges Land/Bundesland ueber openholidaysapi.org. binary_sensor heute/morgen + sensor naechste Ferien; Mitternachts-Rollover; mehrsprachig DE/EN/ES/FR.