Vibe Coding — Implementation Plan Generator

Generate IMPLEMENTATION_PLAN.md. The ordered build roadmap that vibe-coding-build follows step by step.

Prerequisites Check

1. Read ./docs/PRD.md — features to build
2. Read ./docs/TECH_STACK.md — setup and tooling steps
3. Read run_target from progress.txt — determines final phase title and steps
4. Read ./docs/BACKEND_STRUCTURE.md — data models and API endpoints
5. Read ./docs/FRONTEND_GUIDELINES.md — component structure
6. Read ./docs/APP_FLOW.md — screens and dependencies