LibreNostr v0.5.1

Fixed

• Typing @name to mention someone could take several seconds before any
  result appeared. The search first tries a relay-side NIP-50 query, then
  fell back to a second, unfiltered query only if that failed — but the two
  ran strictly one after the other, so on a relay pool without NIP-50
  support (the common case here) every search paid both queries' full
  timeouts back to back. They now run at the same time; the fallback is
  cancelled the moment the NIP-50 query alone comes back with something, so
  a relay that does support NIP-50 is unaffected.
• A note that quoted or mentioned another note sometimes showed "Mentioned
  event not found" even though the referenced note existed and rendered
  fine elsewhere (the home feed, an opened thread). Search results,
  notifications, and article comments never fetched the notes a note
  quoted, only the note itself — now they do, matching the feed and
  thread screens. The "not found" card also has a working retry button
  now, instead of being a dead end after a single failed attempt.
• Some quoted or mentioned notes rendered as raw nostr:nevent1… text
  instead of a card — a reference that matched the expected format but
  failed to decode (a corrupted copy-paste, a checksum another client
  mangled) used to be silently dropped with no trace, leaving the literal
  text on screen forever. It's now shown as an unresolved-reference card
  like any other note that can't be found, instead of leaking as text.
• Video attachments almost never showed a preview frame, even when the
  note carried one. The video's own metadata tag can include a preview
  image, but it was never read — only Primal's own (now-unused) preview
  service was checked, so it fell back to nothing.
• The app sometimes loaded only your own notes and only your own
  notifications for a while after a cold start — notifications now retry
  a genuinely empty first response instead of treating it as "no
  notifications, ever," matching a fix already in place for the note feed.
• Zap notifications showed the sats-zapped amount only for a direct zap on
  your own post — a zap on a post you were mentioned in, or on a post that
  mentioned one of yours, showed the zap icon with no amount at all.
• The feed could visibly jump mid-scroll as more notes loaded. A background
  refresh of like/repost/zap counts for the newly-loaded page could land
  after you'd already scrolled further, and the resulting reflow used the
  scroll position's on-screen index rather than the note actually under
  it — turning off index-based placeholders in favor of per-note identity
  fixes the reflow to track the right note instead of the wrong index.
• On the Dark Pixel theme, the follow/unfollow button on a profile could be
  partly hidden behind the avatar once you already followed that person —
  the button's monospace font ran wider than the space reserved for it.

Removed

• On-device note translation. It added a large, always-on cost to every
  build (native toolchain, a ~70-language detection model) for a feature
  that saw essentially no use. The code isn't gone, just disconnected from
  the build, in case it's worth reviving in a more selective form later.