v1.5.11

What's Changed

• docs(readme): restructure following codex-app-transfer template by @Cmochance in #39
• ci(release): add macOS Intel build to release matrix by @Cmochance in #41
• ci(release): switch macOS Intel runner from macos-13 to macos-15 by @Cmochance in #42
• ci(release): use macos-15-intel runner for Intel build by @Cmochance in #43
• fix(backend): relax tokens constraint to prevent silent account write-back bypass by @Cmochance in #44
• feat(ci): add experimental Linux x86_64 build (.deb + .AppImage) by @Cmochance in #40
• feat(quota): optimize quota refresh logic, add relative countdowns, parallelize card refreshes by @Cmochance in #45

Full Changelog: v1.5.10...v1.5.11