Implement language detection in the agent

[n1colasf]

Description

Introduces a new pretool for language detection and runtime context setting to improve multilingual support and user experience. The tool detects the language of the latest user message, sets assistant context accordingly, and dynamically translates fallback messages when needed. Also includes agent configuration updates and database migration to register and integrate the tool.

Type of Change

• Bug fix (non-breaking change that fixes an issue)

Related Issues

Fixes #1

Changes Made

• Added a new pretool LanguageAndMessageNotInfo in agents/tools.py to:
  • Detect the language of the latest user message using pycld2
  • Set runtime language context for the assistant
  • Translate the "no information" fallback message dynamically using translate
• Integrated the new tool into CogsolFrameworkAgent by adding it to the pretools pipeline in agent.py
• Added database migration 0004_auto_20260325_1545.py to:
  • Register the LanguageAndMessageNotInfo tool in the database
  • Update the pretools field of CogsolFrameworkAgent to include the new tool
  • Update the __code__ field of CogSolScaffoldGenerator with improved code generation logic for multiple component types
• Ensured safe handling of translation and detection failures with fallback behavior

Testing Done

• Tested manually:

Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings