Added
- Encrypted letters now appear as interactive 3D envelopes with Nushu script -- flip and open them to reveal the secret writing inside
- Zap receipts and profile metadata events now render in feeds and detail pages
- Remote signer callback page for NIP-46 login flows (Amber, Primal)
Changed
- Post action buttons extracted into a reusable PostActionBar component
- Badge detail page streamlined with unified tab bar
Fixed
- Hashtags now support accented and Unicode characters
- Letter compose opens correctly from notifications and the letters page
- Letter font picker loads fonts so each option previews in the correct typeface
- Zap comment positioned inside the right column instead of floating with offset
- Safe-area padding on pinned SubHeaderBar only applies when scrolled to top