CLAUDE.md Starter Templates — 12 Project Types

12 battle-tested CLAUDE.md templates covering: Next.js, Rails, Python/FastAPI, React Native/Expo, Swift/iOS, Go microservices, Rust CLI tools, monorepos (Turborepo/Nx), Django, Express/Node, Flutter, and Solidity/Foundry. Each template includes the right build/test/lint commands, architecture notes, common pitfalls, and project-specific conventions that actually matter. Not generic boilerplate — these are distilled from real projects and tuned so agents spend zero time figuring out how to work in the codebase.