Ten tasks, 58 steps, TDD throughout. Tasks 1-3 fix the P0 (manifest
enumeration, working default URL, and the live-corpus test whose absence
let the defect survive); 4-7 are metadata and packaging; 8-10 rewrite
README, NEWS and CONTRIBUTING.
Distribution mechanics stay out of scope -- r-universe publishes check
results on registration, so it comes after final verification is green.
