added backlink to dataset in spans

[skull8888888]

Important

This PR adds functionality to link datapoints to spans, updating the database schema, API, and frontend components accordingly.

• Database:
  • Add datapoint_to_span table with foreign keys to dataset_datapoints and spans in 0004_worthless_kitty_pryde.sql.
  • Update relations.ts and schema.ts to include datapoint_to_span relations.
• API:
  • Update route.ts in datapoints to handle POST requests linking datapoints to spans.
  • Add new route in spans to retrieve datapoints linked to a span.
• Frontend:
  • Update dataset.tsx to handle datapoint selection and deletion.
  • Add span-datasets.tsx to display datasets linked to a span.
  • Update export-spans-dialog.tsx to include sourceSpanId when exporting spans to datasets.
  • Modify span-view-span.tsx to include SpanDatasets component.

^{This description was created by for 1630c4f. It will automatically update as commits are pushed.}

[ellipsis-dev]

❌ Changes requested. Reviewed everything up to 1630c4f in 1 minute and 33 seconds

More details

• Looked at 3568 lines of code in 15 files
• Skipped 0 files when reviewing.
• Skipped posting 4 drafted comments based on config settings.

1. frontend/app/api/projects/[projectId]/datasets/[datasetId]/datapoints/route.ts:55

• Draft comment:
  Consider providing more detailed error messages in the response to aid in debugging when validation fails.
• Reason this comment was not posted:
  Confidence changes required: 50%
  The use of safeParse in the POST method is good for validation, but the error message could be more descriptive for better debugging.

2. frontend/app/api/projects/[projectId]/spans/[spanId]/datapoints/route.ts:15

• Draft comment:
  Consider using a consistent response status code for unauthorized access, such as 403, to align with the rest of the application.
• Reason this comment was not posted:
  Confidence changes required: 50%
  In the GET method of the new route.ts file, the response status for unauthorized access should be consistent with the rest of the application.

3. frontend/components/traces/traces-table.tsx:143

• Draft comment:
  Ensure all dependencies used within the useEffect are included in the dependency array to prevent potential bugs.
• Reason this comment was not posted:
  Confidence changes required: 50%
  The useEffect hook in the traces-table.tsx file should include all dependencies that are used within the effect to ensure it runs correctly.

4. frontend/components/traces/trace-view.tsx:70

• Draft comment:
  Ensure all dependencies used within the useEffect are included in the dependency array to prevent potential bugs.
• Reason this comment was not posted:
  Confidence changes required: 50%
  The useEffect hook in the trace-view.tsx file should include all dependencies that are used within the effect to ensure it runs correctly.

Workflow ID: wflow_X6awhqed3aDZpte3

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[ellipsis-dev]

Consider adding a check for the user's session to ensure that the user is authenticated before proceeding with the POST request.