0.7.14 — Snapshot reliability (wraps neolink 0.7.12)

Wraps neolink 0.7.12. Hardens camera snapshot reliability.

• Camera snapshots (the MQTT status/preview image behind the Home Assistant camera entity) are validated as complete images before being published: an incomplete capture is retried and the last good frame is kept rather than published.

No add-on configuration changes are required to keep today's behaviour.