improvement(trace-span): make tool calls separately collect in the tracespan

[icecrasher321]

Description

Make tool calls separately collect in the trace span. And align model responses with overall duration.

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Screen.Recording.2025-07-12.at.1.56.12.PM.mov

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added tests that prove my fix is effective or that my feature works
• All tests pass locally and in CI (bun run test)
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules
• I have updated version numbers as needed (if needed)
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

Security Considerations:

• My changes do not introduce any new security vulnerabilities
• I have considered the security implications of my changes

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[greptile-apps]

PR Summary

Enhanced traceability by modifying how tool calls are collected within trace spans, improving debugging and monitoring capabilities.

• Separates tool calls into individual trace spans for better granularity in tracking and debugging
• Fixed collection mechanism to prevent data mixing between different tool calls
• Added automated testing to verify correct span collection behavior

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[delve-auditor]

✅ No security or compliance issues detected. Reviewed everything up to 6967ac0.

Security Overview

• 🔎 Scanned files: 3 changed file(s)

Detected Code Changes

Change Type	Relevant files
Enhancement	► trace-spans-display.tsx     Add collapsible input/output sections     Add tool call data display ► trace-spans.ts     Enhance execution tracing with sequential segments     Improve tool call handling ► trace-spans.test.ts     Add comprehensive test coverage

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