feat(sensor): restore latest_events attribute and wire format_events service to it (v1.2.2)

[Copilot]

latest_events was dropped from the sensor's extra_state_attributes in v1.2.1. Additionally, the format_events service was reading from the full cumulative events list rather than the per-update delta.

Changes

• sensor.py — Re-introduces _latest_events:

  • First run: all events from the feed, sorted newest → oldest
  • Subsequent updates: only events not previously seen, sorted newest → oldest
  • Exposed via extra_state_attributes["latest_events"] (raw dicts, unformatted)
  • Written back to hass.data[DOMAIN][entry_id]["latest_events"] so other components can consume it

• __init__.py — format_events service now reads from latest_events instead of events, scoping formatted output to the delta of the most recent feed poll

• manifest.json — version bumped to 1.2.2

Resulting attribute shape

extra_state_attributes = {
    "events": [...],         # cumulative, up to MAX_EVENTS=50, newest first
    "latest_events": [...],  # new events this update only (all on first run), newest first
}

Each entry in latest_events is a raw dict with keys: id, title, place, magnitude, time, updated, coordinates, distance. The format_events service applies formatting at call time from these raw dicts.

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[code-review-doctor]

Some things to consider. View full project report here.

[code-review-doctor]

Suggested change

	filtered_events, key=lambda e: parse_event_time(e), reverse=True
	filtered_events, key=parse_event_time, reverse=True

Avoid unnecessarily wrapping parse_event_time in a lambda. Read more.