* docs: align documentation theme with Sencho app branding
- Change dark background from #0F172A (blue-tinted slate) to #090909 (neutral dark)
- Update accent colors to match app brand oklch(0.72 0.14 200)
- Add custom.css to increase navbar and footer logo size from 28px to 36px
* fix(deps): resolve npm audit vulnerabilities in backend
Fix path-to-regexp (high) and brace-expansion (moderate) via npm audit fix.
Anso