Test pocketdiff

pocketdiff is a CLI (bin/cli.js) that reads a unified diff and writes one self-contained HTML review file. There's no server — every check below is either a local command or a single HTTP fetch. Run from the repo root.

npm install   # Node >= 16

A green run is: unit tests pass, the driver says pocketdiff: OK, every input form writes the expected file(s), the output has zero external assets, and the error paths print a recovery hint.

1. Unit tests (fast, no network)

node test/test.js     # -> "All tests passed."