Python exec tool for Ava

Create a Python execution tool that allows Ava to run Python code snippets.

Context

Ava is a Telegram bot agent (Omni/Agent/Telegram.hs) that needs to execute Python code for data processing, API calls, and automation tasks as part of customer acquisition for PodcastItLater.

Requirements

1. Create Omni/Agent/Tools/Python.hs module 2. Tool name: python_exec 3. Execute Python snippets via subprocess 4. Capture stdout/stderr and return as result 5. Timeout after 30 seconds 6. Available stdlib: requests, json, csv, re, datetime, urllib

Tool Schema

{
  "name": "python_exec",
  "parameters": {
    "code": "string (required) - Python code to execute",
    "timeout": "integer (optional) - timeout in seconds, default 30"
  }
}

Implementation Notes

• Use System.Process.readProcessWithExitCode
• Write code to temp file, execute with python3
• Clean up temp file after execution
• Return JSON with stdout, stderr, exit_code fields
• Follow patterns in Omni/Agent/Tools/Email.hs for tool structure

Testing

• Add unit tests following Omni.Test patterns
• Test: simple print statement
• Test: import requests and make HTTP call
• Test: timeout handling
• Test: syntax error handling

Files to Modify

• Create: Omni/Agent/Tools/Python.hs
• Modify: Omni/Agent/Telegram.hs (add tool to telegram agent's tool list)

Verification

• bild Omni/Agent/Tools/Python.hs
• bild --test Omni/Agent/Tools/Python.hs