Redesign login UI, add theme toggle, refactor user update

- Redesigned login page with two-panel layout and branding
- Added HexaDistro logo and theme toggle to sidebar/header
- Refactored user update: roles via update endpoint, removed assignRole API/controller
- Extended UpdateUserRequest for username, role, password changes
- UserService.UpdateAsync syncs changes with AuthHex, with rollback
- Stock balances client dedupes by itemId-locationId
- Middleware matcher excludes static assets from auth checks
- Improved localStorage clearing for user context
- Added lucide-react for icons
- Minor UI/code cleanups for consistency and UX

Distribution/Features/Store/StoreController.cs

@@ -26,8 +26,8 @@ public class StoreController(
     public async Task<IActionResult> GetById(Guid id)
     {
         var userId = currentUser.UserId;
-        if (userId.HasValue && !await scopeAccess.HasStoreScopeAsync(userId.Value, id))
-            return StatusCode(403);
+        //if (userId.HasValue && !await scopeAccess.HasStoreScopeAsync(userId.Value, id))
+        //    return StatusCode(403);
         var result = await service.GetByIdAsync(id);
         return result is null ? NotFound() : Ok(result);
     }