Report Generation Agent: switching to sqlalchemy

[lotif]

Summary

Switching the sqlite connection to a SQLAlchemy connection to take advantage of it being agnostic of database and the read only database connection implementation

Clickup Ticket(s): Link(s) if applicable.

Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📝 Documentation update
• 🔧 Refactoring (no functional changes)
• ⚡ Performance improvement
• 🧪 Test improvements
• 🔒 Security fix

Changes Made

• Added report generation and AML DB connections to the client manager
• Refactored all the report generation scripts
• Small refactoring on a couple of AML investigation agent functions

Testing

• Tests pass locally (uv run pytest tests/)
• Type checking passes (uv run mypy <src_dir>)
• Linting passes (uv run ruff check src_dir/)
• Manual testing performed (describe below)

Manual testing details:

Tested the Report Generation demo UI and the evaluation script

Checklist

• Code follows the project's style guidelines
• Self-review of code completed
• Documentation updated (if applicable)
• No sensitive information (API keys, credentials) exposed