Don't clear selected log entry in structured logs if filters are removed

[Copilot]

Clearing the selected entry on any filter change was overly aggressive — removing a filter can only expand the result set, so the current selection is always still valid in that case.

Changes

• StructuredLogs.razor.cs — HandleSelectedLogLevelChangedAsync: Skip ClearSelectedLogEntryAsync when the log level is reset to "All" (null). Only clear when a restrictive level filter is applied.

• Resources.razor.cs — VisibleResourcesChangedAsync: Replace the unconditional ClearSelectedResourceAsync() call with a check against the existing Filter() predicate. The selection is only cleared when the selected resource no longer passes the active filters. This covers all filter variants (type, state, health state, text search) correctly in both directions — a removed filter preserves selection, an added filter that excludes the selection still clears it.

// Before
await ClearSelectedResourceAsync();

// After — only clear if selected resource is filtered out
if (SelectedResource is null || !Filter(SelectedResource))
{
    await ClearSelectedResourceAsync();
}

Checklist

• Is this feature complete?
  • Yes. Ready to ship.
  • No. Follow-up changes expected.
• Are you including unit tests for the changes and scenario tests if relevant?
  • Yes
  • No
• Did you add public API?
  • Yes
  • No
• Does the change make any security assumptions or guarantees?
  • Yes
  • No
• Does the change require an update in our Aspire docs?
  • Yes
  • No

Warning

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

• dnceng.pkgs.visualstudio.com
  • Triggering command: /usr/share/dotnet/dotnet dotnet test tests/Aspire.Dashboard.Components.Tests/Aspire.Dashboard.Components.Tests.csproj -- --filter-not-trait quarantined=true --filter-not-trait outerloop=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
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