[FEATURE] Add --profile flag for performance profiling

[jwesleye]

Feature Description

Detailed performance profiling showing timing breakdown, memory usage, and bottlenecks.

Problem/Motivation

When optimizing agents, I need to understand where time is spent (API calls, tool execution, parsing).

Proposed Solution

chat_loop myagent --profile

# Shows detailed breakdown:
# Query processing: 2.3s
#   - API call: 2.1s (91%)
#   - Tool execution: 0.15s (7%)
#   - Parsing: 0.05s (2%)
# Memory peak: 234 MB

Benefits

• Identify performance bottlenecks
• Optimize slow agents
• Debug latency issues
• Resource monitoring

Priority

• Critical
• High
• Medium
• Low

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity.
It will be closed in 14 days if no further activity occurs.

If this issue is still relevant, please:

• Comment to keep it open
• Remove the "status: stale" label
• Provide additional information or updates

Thank you for your contributions!

[jwesleye]

Closing as out of scope for this AWS Strands-focused CLI tool.

This project is focused on providing a simple, efficient command-line interface for AWS Strands agents. Advanced features like workflow automation, collaboration tools, and complex UI enhancements would add significant complexity without serving the core use case.

We're keeping the scope focused on:

• Solid AWS Strands agent integration
• Essential CLI features (history, templates, sessions)
• Developer productivity (debugging, validation)
• Simple, maintainable codebase

Thank you for the suggestion!