v0.4.0

Added

• Full test suite: 45 tests covering coordinator, sensors, binary sensor, and config flow
• SECURITY.md — vulnerability reporting policy via GitHub Private Security Advisory
• Dependabot configured for pip and GitHub Actions dependencies
• CI: ruff lint and pytest jobs added to validate workflow (4 separate jobs)
• translations/en.json — entity names served from HA translations system

Changed

• All entity classes use _attr_has_entity_name = True + _attr_translation_key — names driven by translations instead of hardcoded strings
• strings.json and translations/en.json fully synced
• Station ID leading zeros stripped on entry (e.g. 007 → 7) to prevent duplicate entries
• DeviceInfo definition consolidated — binary sensor reuses shared helper from sensor platform
• Coordinator iterates fuel types via FUEL_TYPES constant instead of hardcoded list

Fixed

• config_flow: unique ID was set before station ID normalization — entering 007 and 7 could create duplicate entries for the same station; unique ID is now set after normalization
• __init__: async_unload_entry used dict.pop(key) which would raise KeyError if coordinator was never stored due to a failed setup; changed to .pop(key, None)
• binary_sensor: midnight-crossing detection used close_time <= open_time — equal times (e.g. 9 a.m.–9 a.m.) were incorrectly treated as midnight-crossing ranges; changed to <
• sensor: FuelPriceSensor used state_class = MEASUREMENT with device_class = MONETARY — invalid combination per HA validation; changed to TOTAL