Citadel v0.5.0-nightly.20260613.109

Automated nightly release.

Includes updater metadata (latest.json) for Tauri updater clients.

What's Changed

• test: stress-library generator and query benchmarks by @phildenhoff in #119
• perf: remove startup pending floor; fix silent cover-load failure by @phildenhoff in #121
• perf: Authors page at scale — has_cover, O(n) counts, virtualized list by @phildenhoff in #122
• perf: scope edit-route data; retire whole-library fetch by @phildenhoff in #123
• perf: cover thumbnails + instant grid scroll at library scale by @phildenhoff in #124
• First-run welcome that teaches both ways into a library by @phildenhoff in #125

Full Changelog: v0.5.0...v0.5.0-nightly.20260613.109