German for 'quack', matching the Ente (German for 'duck') naming. All
references updated: package name, CLI binary, X-Client-Package header,
test descriptions, temp dir prefixes, README, Makefile docker tag.
Tests are deliberately excluded from the pre-commit hook so that the
TDD red-phase commit (failing tests landing before implementation) can
land on a feature branch. CI still runs full make check via docker build
so a red branch cannot reach main.
Targets: test (vitest, with conditional verbose rerun pattern), lint
(eslint + prettier), fmt / fmt-check (prettier), check (test + lint +
fmt-check), build (tsc), dev (tsc --watch), clean, docker, hooks.
Uses GNU timeout when available to hard-cap make test at 30 seconds, per
repo policy. Falls through without a cap on systems where timeout is
absent.
