Local gates

Use the Makefile targets in normal development:

make check-fmt
make typecheck
make lint
make test

The Makefile is a wrapper. The command behaviour lives in package.json:

• make check-fmt -> bun run check:fmt
• make typecheck -> bun run check:types
• make lint -> bun run lint
• make test -> bun run test

bun run lint runs Biome first, then Oxlint, then Markdown linting:

bun run lint:biome
bun run lint:oxlint
bun run lint:markdown

make all runs build, check-fmt, lint, typecheck, and test in that order.