Important

Migrate queries to use traces_all_amt for improved performance and update related functions and documentation.

• Behavior:
  • Migrate queries to use traces_all_amt instead of traces for better performance in observations.ts, scores.ts, and observations.ts in public-api.
  • Introduce measureAndReturn for query execution, handling both existing and new execution paths.
• Functions:
  • Update getObservationsTableInternal, generateObservationsForPublicApi, getObservationsCountForPublicApi to use AMT logic.
  • Update _handleGenerateScoresForPublicApi, _handleGetScoresCountForPublicApi to use AMT logic.
• Misc:
  • Update README.md to reflect changes in query handling and checklist for traces table access patterns.

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