Nightly 20260930

Nightly build of Voyage at a5b15e925d.

Changes since nightly 20260927:

• a5b15e925d Drop unsupported UI locales and merge Bengali variants
• d266f43056 Require translations for new strings at commit time
• b89c04865e Offer translation for media gallery captions
• edd7fc2fb5 Fix search translation crash and jumped-to timeline snapping to the latest message
• d93ac63e73 Restore keyboard state around URL preview image viewer
• 7d8d5e4c8c Add support for MSC4550 explicit links
• a34379b287 Fix translated sends dropping emotes, Google sentence spacing and stale translations after edits
• 41a1c11472 Use translate.google.com's own endpoint for Google translation
• cb9bc704ca Fix viewer on just-sent images
• 6de961661f Fix blank timeline after jumping to a search result
• f409bb1ed2 Unify code block rendering across rich text surfaces
• c11c854659 Clear all account caches and reclaim search index files
• 30fda6fa90 Remove timeline gap healing from pagination
• 5e615a4f34 Unlinkify /me sender names
• 92fdf36ec5 Avoid Glide activity lookups during view cleanup
• 2d90b4779b Fix animated avatar playback, cropping and previews
• 8bc925fc25 Preserve composer keyboard state across media and selections
• be366ef1c5 Improve code appearance and add inline tap to copy