Transaction Summary by Operator: add grid sorting, paging, and fix filter button alignment

[Copilot]

The Transaction Summary by Operator page was missing column sorting and pagination, and the filter action buttons were misaligned. This brings it to parity with the Transaction Summary by Merchant page.

Changes

TransactionSummaryOperator.razor.cs

• Sorting — Added _sortColumn/_sortAscending state and a PagedOperators computed property that sorts across all columns (OperatorName, TotalCount, TotalValue, AverageValue, AuthorisedCount, DeclinedCount, AuthorisedPercentage) with toggle-on-re-click behaviour
• Paging — Added _pageSize, _currentPage, TotalPages, GoToPage(); LoadSummaryData resets to page 1 on new data
• Bug fix — ClearFilters was resetting dropdown values to "" instead of "-1", causing parse errors on the next load

TransactionSummaryOperator.razor

• Sortable headers — Each <th> wired to SortBy(column) with a ↑/↓ indicator on the active column
• Paging controls — First/prev/numbered/next/last buttons below the table with a "Showing X–Y of Z results" label; rendered only when TotalPages > 1
• Button alignment — Filter button container changed from <div class="mt-4"> to <div class="mt-4 flex items-center gap-2"> with inline-flex items-center on each button, matching the Merchant summary page

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• f.feedz.io
  • Triggering command: /usr/bin/dotnet dotnet build EstateManagementUI.BlazorServer/EstateManagementUI.BlazorServer.csproj /home/REDACTED/work/EstateManagementUI/EstateManagementUI/EstateManagementUI.BlazorServer/Components/Layout/EntryLayout.razor /home/REDACTED/work/EstateManagementUI/EstateManagementUI/EstateManagementUI.BlazorServer/Components/Pages/Estate/Index.razor /home/REDACTED/work/EstateManagementUI/EstateManagementUI/EstateManagementUI.BlazorServer/Components/Pages/AccessDenied.razor /home/REDACTED/work/EstateManagementUI/EstateManagementUI/EstateManagementUI.BlazorServer/Components/Pages/EntryScreen.razor /home/REDACTED/work/EstateManagementUI/EstateManagementUI/EstateManagementUI.BlazorServer/Components/Pages/Contracts/New.razor /home/REDACTED/work/EstateManagementUI/EstateManagementUI/EstateManagementUI.BlazorServer/Components/Pages/Contracts/Index.razor /home/REDACTED/work/EstateManagementUI/EstateManagementUI/EstateManagementUI.BlazorSer�� /home/REDACTED/work/EstateManagementUI/EstateManagementUI/EstateManagementUI.BlazorServer/Components/Pages/Contracts/View.razor /home/REDACTED/work/EstateManagementUI/EstateManagementUI/EstateManagementUI.BlazorServer/Components/Pages/Merchants/New.razor (dns block)
  • Triggering command: /opt/hostedtoolcache/CodeQL/2.24.2/x64/codeql/csharp/tools/linux64/Semmle.Autobuild.CSharp /opt/hostedtoolcache/CodeQL/2.24.2/x64/codeql/csharp/tools/linux64/Semmle.Autobuild.CSharp (dns block)
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/EstateManagementUI/EstateManagementUI/EstateManagementUI.sln --packages /tmp/codeql-scratch-08f19c0a64ebe883/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/tmp/codeql-scratch-08f19c0a64ebe883/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/tmp/codeql-scratch-08f19c0a64ebe883/dbs/csharp/working/emptyFakeDotnetRoot /p:AllowMissingPrunePackageData=true (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Transaction Summary By Operator</issue_title>
<issue_description>- Cant order grid

• add paging to grid
• apply filters and clear filters buttons not aligned</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Transaction Summary By Operator #805

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