[Subtask] Translate composePrompt to Python

[debuggerone]

Subtask Overview

This subtask focuses on translating the composePrompt.ts utility from JavaScript to Python to enable dynamic prompt generation for the AgentM migration.

Tasks

• [x] Convert the JavaScript composePrompt.ts function to Python, ensuring all functionality is preserved.
• [x] Implement prompt templates and variable replacements using Python string formatting methods.
• [x] Test the translated function to ensure it generates prompts dynamically and correctly.

Acceptance Criteria

• The composePrompt function is fully translated to Python.
• Python string formatting methods are used effectively for prompt generation.
• The translated function is tested and validated to ensure accurate prompt creation.

[Stevenic]

This was just a super simple string substitution library that swaps {{var}} with a normalized text string. I've built numerous different template expansion engines in the past but honestly this approach covers the 90% case with only 1% of the complexity.