feat: add ability to create vector search indexes MCP-234

[nirinchev]

Proposed changes

This adds the ability to create a vector search index to the create-index tool. It is still WIP, but putting it here so that we can run accuracy tests.

Checklist

• Integration tests for vector search indexes
• Accuracy tests

[github-actions]

📊 Accuracy Test Results

📈 Summary

Metric	Value
Commit SHA	d52d9957053cc2ae0f59eed7e2a57cb8fdf4763e
Run ID	f099752f-8877-429b-8369-35603ceb8914
Status	done
Total Prompts Evaluated	61
Models Tested	1
Average Accuracy	96.7%
Responses with 0% Accuracy	1
Responses with 75% Accuracy	4
Responses with 100% Accuracy	56

📊 Baseline Comparison

Metric	Value
Baseline Commit	f384834ee558a0a9c79c0105194b0f6dcdc12fe4
Baseline Run ID	0cb61b79-616f-4733-808f-b6bf54739dd6
Baseline Run Status	done
Responses Improved	1
Responses Regressed	2

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📎 Download Full HTML Report - Look for the accuracy-test-summary artifact for detailed results.

Report generated on: 10/7/2025, 12:29:08 PM