Creer v0.1 — FastAPI backend + VS Code extension foundation

[seven0070]

Summary

Implements Creer v0.1: AI-powered repo scaffolding with a FastAPI backend and a VS Code extension.

Backend (backend/)

• POST /generate — plan project structure via OpenAI, then generate file contents one-by-one
• GET /health — liveness check
• Modules: planner, generator, validator (path/name safety), templates stub for v0.2
• Lazy OpenAI client so the server boots without a key (generate fails clearly if unset)

Extension (extension/)

• Command: Creer: Create New Repo
• Prompts for an idea, calls http://localhost:8000/generate, writes files into the workspace
• Optional git init + initial commit (creer.initGit)
• Settings for backend URL; basic overwrite confirmation

Docs

• README.md — setup & usage
• PLAN.md — final plan for v0.2 (preview, GitHub push, templates, overwrite protection, /creer chat)

Test plan

• cd backend && pip install -r requirements.txt && cp .env.example .env (set OPENAI_API_KEY)
• uvicorn main:app --reload --port 8000 → curl /health returns ok
• curl -X POST /generate with a sample idea returns project_name + files
• cd extension && npm install && npm run compile → F5 → run Creer: Create New Repo
• Confirm files land in workspace and optional git init works