Labonair v1.9.1

Changelog

• chore: bump version to 1.9.1 (ed5f846)
• refactor(icons): regenerate all app icons from updated source (cccfe22)
• chore: update handshake.md after Nexum → Labonair rename (4d382a0)
• fix: rename remaining Nexum references in HTML entry points and default theme (566a704)
• docs: rename Nexum → Labonair in CI/CD, issue templates, and documentation (31cca0c)
• refactor(frontend): rename Nexum → Labonair in TypeScript frontend with data migration (c840c7c)
• refactor(rust): rename Nexum → Labonair in backend, config, and shell integration (62da1cf)
• feat(command-palette,git-graph): add SC commands, fix tab order, improve no-repo state (468d273)
• fix(ai): remove focus ring outline from AiInputBar (7730ac6)
• feat(explorer): dim gitignored files/folders in file tree (2327093)