Improve trace view with specialized displays for different span types

[a5anka]

Summary

The current trace view displays raw span attributes. We need to improve this by showing relevant, structured information based on the type of span being viewed.

Span Types and Key Information

1. LLM Spans

When viewing an LLM call span, display:

• System prompt
• Conversation history
• User prompt
• Tool list (when using tool-calling APIs)
• Response

Key metadata: Token counts (input/output), model name

2. Tool Spans

When viewing a tool execution span, display:

• Tool name
• Tool input (parameters)
• Tool output (result)

Key metadata: Execution duration, status

3. Knowledge/RAG Spans

When viewing a retrieval span, display:

• Query
• Retrieved context/documents

Key metadata: Number of results, retrieval latency

4. Other Spans

For generic spans, display:

• Input
• Output

Key metadata: Duration, status, attributes

References

• OpenTelemetry GenAI Semantic Conventions
• OpenTelemetry GenAI Agent Spans