Allow sorting by timestamp in structured logs and traces

[adamint]

Description

Adds the ability to sort by timestamp for traces and structured logs. For this, I had to extend OtlpHelpers.GetItems to also accept a sorting function as is provided to us in GetData in the data grids.

Fixes #4190

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
    • If yes, did you have an API Review for it?
      • Yes
      • No
    • Did you add <remarks /> and <code /> elements on your triple slash comments?
      • Yes
      • No
  • No
• Does the change make any security assumptions or guarantees?
  • Yes
    • If yes, have you done a threat model and had a security review?
      • Yes
      • No
  • No
• Does the change require an update in our Aspire docs?
  • Yes
    • Is this introducing a breaking change?
      • Yes
        • Link to aspire-docs issue (please use this breaking-change template):
      • No
        • Link to aspire-docs issue (please use this doc-idea template):
  • No

[Copilot]

Pull Request Overview

This PR adds sorting functionality by timestamp for both traces and structured logs. Key changes include new tests for sorting, updates to API context objects and helper methods to accept a sort function, and UI component adjustments to enable sortable columns.

Reviewed Changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/Aspire.Dashboard.Tests/TelemetryRepositoryTests/TraceTests.cs	Added tests to validate trace sorting and subset selection
tests/Aspire.Dashboard.Tests/TelemetryRepositoryTests/LogTests.cs	Added tests to validate log sorting and subset selection
src/Aspire.Dashboard/Components/Pages/StructuredLogs.razor.cs	Updated log page to use sortable columns with a new GridSort instance
src/Aspire.Dashboard/Otlp/Storage/GetLogsContext.cs	Extended context with a new SortFunction property
src/Aspire.Dashboard/Otlp/Model/OtlpHelpers.cs	Modified GetItems overloads to support sorting
src/Aspire.Dashboard/Components/Pages/Traces.razor.cs	Updated traces page to use sortable columns with a new GridSort instance
src/Aspire.Dashboard/Model/TracesViewModel.cs	Updated GetTraces method to accept a sort function
src/Aspire.Dashboard/Model/StructuredLogsViewModel.cs	Updated GetLogs method to accept a sort function
src/Aspire.Dashboard/Otlp/Storage/TelemetryRepository.cs	Enhanced GetLogs/GetTraces to propagate sort functions; issues with parameter order in GetLogs call
src/Aspire.Dashboard/Components/Pages/StructuredLogs.razor	Enabled sorting on the timestamp column
src/Aspire.Dashboard/Components/Pages/Traces.razor	Enabled sorting on the timestamp column

[JamesNK]

A problem with sorting in this direction:

If you're not scrolled to bottom, new logs or traces will push what you're currently viewing off the page. Ideally the grid would keep position. In other words, as new items were added to the grid, the scrollbar would update to keep the currently viewed items on the screen.

Example of the problem:

Pausing collection is a work around. But it's not a good experience without pausing.

[adamint]

A problem with sorting in this direction:

If you're not scrolled to bottom, new logs or traces will push what you're currently viewing off the page. Ideally the grid would keep position. In other words, as new items were added to the grid, the scrollbar would update to keep the currently viewed items on the screen.

Example of the problem:

Pausing collection is a work around. But it's not a good experience without pausing.

So, dependent on #8184?

[adamint]

Or do we also stop the page from scrolling

[JamesNK]

Investigate what is involved to keep position. This must be a common problem with examples of solutions.

I don't think this needs to be in 9.2.

[adamint]

Reached out to Vincent for advice.

[vnbaaij]

We don't have any good ways of maintaining or changing scroll positions in the DataGrid, I'm afraid...

[danmoseley]

closing stale PR's. this seems like it needs more design work if we do it.