Defines shared API contract between frontend and backend:
- types.ts: TypeScript interfaces for Next.js frontend
- models.py: Matching Pydantic models for FastAPI backend
Covers: User, Flow, Trigger, Execution, WasmModule, Marketplace,
ProjectMemory, and pagination/error types.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
