Implement pricing management functionality and update related components

- Added new endpoints for managing global pricing settings, including retrieval and updates for `PricePerConfigPerQuarter` and `PricePerConfigPerYear`.
- Updated `RoleService` and related commands to remove pricing fields from role management, ensuring a clear separation between role configurations and global pricing.
- Enhanced the `FactoryResetCommandHandler` to include seeding of pricing settings during a factory reset.
- Modified frontend components to support new pricing settings, including forms for creating and updating pricing information.
- Updated API documentation to reflect changes in pricing management endpoints and their expected request/response formats.
- Adjusted tests to ensure proper coverage for new pricing functionalities and their integration with existing role management features.

backend/src/PnvPanel.Application/Support/ListSelectableRoles/ListSelectableRolesQueryHandler.cs

@@ -9,31 +9,29 @@ public sealed class ListSelectableRolesQueryHandler(
     IRoleService roleService,
     IIdentityService identityService,
     ICurrentUser currentUser
-) : IQueryHandler<ListSelectableRolesQuery, Result<IReadOnlyList<SelectableRoleDto>>>
+) : IQueryHandler<ListSelectableRolesQuery, Result<IReadOnlyList<RoleDto>>>
 {
     // Совпадает со значением Infrastructure.Identity.RoleNames.Admin — см. пояснение в
     // CreateRoleRequestTicketCommandHandler (Application не может ссылаться на Infrastructure).
     private const string AdminRoleName = "admin";
 
-    public async Task<Result<IReadOnlyList<SelectableRoleDto>>> Handle(
+    public async Task<Result<IReadOnlyList<RoleDto>>> Handle(
         ListSelectableRolesQuery query,
         CancellationToken cancellationToken
     )
     {
         if (currentUser.UserId is not { } userId)
-            return Result.Failure<IReadOnlyList<SelectableRoleDto>>(AuthErrors.Unauthorized);
+            return Result.Failure<IReadOnlyList<RoleDto>>(AuthErrors.Unauthorized);
 
         var profile = await identityService.GetProfileAsync(userId, cancellationToken);
         var roles = await roleService.ListRolesAsync(cancellationToken);
 
         // Без admin (нельзя запросить) и без текущей роли пользователя (уже есть — нечего запрашивать).
-        // Цена (RoleDto.PricePerConfigPer*) намеренно не пробрасывается — видна только админу.
         var selectable = roles
             .Where(r => !r.Name.Equals(AdminRoleName, StringComparison.OrdinalIgnoreCase))
             .Where(r => profile is null || r.Id != profile.RoleId)
-            .Select(r => new SelectableRoleDto(r.Id, r.Name, r.MaxConfigs, r.MaxIpLimit))
             .ToList();
 
-        return Result.Success<IReadOnlyList<SelectableRoleDto>>(selectable);
+        return Result.Success<IReadOnlyList<RoleDto>>(selectable);
     }
 }