Add traceAI and ai-evaluation to Tools section

[SuhaniNagpal7]

Summary

• Adds traceAI — OpenTelemetry-native tracing framework for LLM/Agent apps, auto-instruments LangChain, LlamaIndex, OpenAI, Anthropic, CrewAI, etc.
• Adds ai-evaluation — LLM evaluation framework with 50+ metrics, LLM-as-Judge, and guardrail scanners — well-suited for RAG evaluation

Test plan

• Entries follow existing Tools template
• Placed alongside RAGAS-style RAG tooling