[Traces] Toast Error handling

[TackAdam]

Description

Update the toast message to be more robust and always dispaly error to keep user informed. And ensure fallback error message to cover all cases.
Add testing.

Before silently failing error example:

Crash.mov

New error handling example:

503Error.mov

No errors on empty data:

EmptyDataNoError.mov

Failed to parse field example:

Issues Resolved

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[ps48]

Should the error.statusCode be changed to error.status? I see the special parsing done in the UI layer in the helper function.

[TackAdam]

I think checking statusCode is correct:

• The helper function is already designed to handle both statusCode and status properties, with statusCode being checked first.

• Changing to error.status would break consistency with the rest of the codebase, which exclusively uses error.statusCode.

• The current implementation follows the established pattern across all router files in the project.

[codecov]

Codecov Report

Attention: Patch coverage is 82.14286% with 5 lines in your changes missing coverage. Please review.

Project coverage is 56.35%. Comparing base (c33aad8) to head (0154818).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...ents/trace_analytics/requests/helper_functions.tsx	82.14%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2463      +/-   ##
==========================================
+ Coverage   56.29%   56.35%   +0.05%     
==========================================
  Files         398      398              
  Lines       16121    16153      +32     
  Branches     4490     4501      +11     
==========================================
+ Hits         9076     9103      +27     
- Misses       6967     6971       +4     
- Partials       78       79       +1     

Flag	Coverage Δ
dashboards-observability	56.35% <82.14%> (+0.05%)	⬆️

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