- replace fixed `[first, second]` destructuring with dynamic segment-aware matching
- find nav items using prefix segment comparison instead of first-segment-only match
- compute `itemSegCount` from matched nav item href to support multi-segment routes
- derive sub-segment index dynamically so breadcrumb labels resolve correctly for nested paths
- swap `ChevronDownIcon` and `ChevronRightIcon` for `ArrowDown01Icon` and `ArrowRight01Icon` in AdminSidebar and AdminTop
- add `ArrowDown01Icon`, `ArrowLeft01Icon`, `ArrowRight01Icon`, and `ArrowUp01Icon` to shared icons index
- remove `ChevronDownIcon` and `ChevronRightIcon` from shared icons index
- replace inline hamburger/close svg with Menu01Icon component in AdminTop
- replace inline chevron svg with ChevronRightIcon component for breadcrumbs
- add ChevronRightIcon and Menu01Icon imports to AdminTop
- fix UserCircle02Icon fill values from hardcoded #ffffff to currentColor
- add `Logout02Icon` to admin top bar logout button
- add `SmartPhone01Icon` and `ComputerIcon` to profile page session list
- update icons index to use hugeicons react package imports
- reduce app name font size from text-lg to text-sm in AdminTop mobile header
- make profile page cards full-width on mobile with sm:min-w-3/5 breakpoint
- stack photo upload layout vertically on mobile using flex-col sm:flex-row
- add flex-wrap to photo action buttons for small screens
- make TabNav horizontally scrollable with hidden scrollbar on mobile
- add shrink-0 and whitespace-nowrap to tab buttons to prevent wrapping