[feat] LLM Based Template Logic Executor

[devanshi00]

Overview

This PR introduces an LLM-based generic logic executor for Accord Project templates. It enables execution of templates even when no logic.ts is provided, using a reasoning-based fallback powered by an LLM.

The goal is to explore a flexible, extensible alternative to traditional TypeScript-based logic while maintaining full backward compatibility.

• LLM Executor

  • Acts as a fallback or replacement for logic.ts
  • Processes:
    • contract text
    • Concerto models
    • current state
    • incoming request
  • Produces:
    • updated state
    • response object
    • emitted events

• Execution Modes

  • disabled – default behavior (TypeScript only)
  • fallback – use LLM only if logic.ts is absent/fails
  • force – always use LLM executor

• Integration

  • Integrated into TemplateArchiveProcessor
  • Seamlessly fits into existing execution pipeline

• Normalization Layer

  • Ensures outputs conform to Accord runtime expectations:
    • timestamps
    • identifiers
    • ordering

• Backward Compatibility

  • Existing templates with logic.ts remain unaffected

• Logging

  • Clear indication of execution path:
    • TypeScript vs LLM

PR Review

@DianaLease @dselman