Persist auth session across app updates

• Stay logged in after updating Hyprnote

Fix note title sync in left sidebar for event-attached sessions

• Editing a note title attached to an event now updates the sidebar correctly

Preserve ignored calendar events after app restart

• Previously ignored events stay ignored after calendar sync

Improve trial expiration handling

• Show "Upgrade to Pro" for expired trials instead of "Start Free Trial"
• Auto-reset cloud STT and Hyprnote LLM settings when trial expires
• Weekly reminder modal with dismiss option

Preserve 'me' label when merging contacts

• The 'me' contact label is no longer lost when merging duplicate contacts

Add git hash display in feedback modal

• Helps with bug tracking and debugging