2026.2.1-pre5

What's Changed

• Add sigmoid-based occupancy detection framework by @Hankanman in #353
• Fix critical bugs, stop silent failures, add type safety by @Hankanman in #354
• Add sleep presence detection via HA Person integration by @Hankanman in #355
• Improve prior calculation accuracy by @Hankanman in #356
• Add purpose-aware activity detection sensors by @Hankanman in #357
• Fix activity detection accuracy by @Hankanman in #358

Full Changelog: 2026.1.1...2026.2.1-pre5