Add tool call support to trace processing functionality

[devin-ai-integration]

Add tool call support and Unicode handling to trace processing functionality

This PR replicates the changes from PR #313, PR #315, and PR #318 to add enhanced tool call support and Unicode handling to the trace processing functionality.

Changes

• Added ToolCall interface to trace_util.ts
• Updated Trace interface to include tool_calls property
• Added functions to extract and process tool calls from events
• Added support for tool messages with array content
• Added support for assistant messages with array content
• Enhanced error handling with proper null checks
• Updated UI components to display tool calls in the traces table
• Updated conversation view to handle and display tool calls with improved formatting
• Added tool_calls property to DspyTrace and CrewAITrace interfaces
• Added Unicode escape sequence handling in render-span-attribute-value.tsx

Testing

• Verified build compiles successfully with no TypeScript errors

Link to Devin run: https://app.devin.ai/sessions/03b563b751764bf5889b7c63d83da2e0
Requested by: [email protected]

[devin-ai-integration]

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