Makes the cheap half of last tick's P0 automatic. A folder rename had
rewritten three npm package names, so bun install failed in a fresh clone
while everything here passed -- the real packages were already in
node_modules from before the rename, making the breakage invisible to every
build and every gate.
Checks two things, offline, in milliseconds: the declared name resolves under
node_modules/, AND the installed package's own name field equals the declared
key. The first alone catches the capacitor case; the second catches a name
that resolves to a DIFFERENT package, which a path-only check would miss.
Together they detect the corrupted-name class without a network round-trip,
which is what lets it run on every build rather than in a nightly job nobody
watches.
It does not replace the clone test. A gate can only see what is IN the repo;
only a clone sees what the repo fails to do on a clean machine.
Negative-tested four ways: recreating the EXACT P0 (the three
@deployment/capacitor/* names) FAILS naming all three; a name that resolves
to a package whose own name differs FAILS; an absent node_modules SKIPs
honestly rather than passing or failing; an empty dependency list FAILS via
the vacuous guard. Wired into build:unlocked and confirmed running inside a
full build (17 declared, 17 verified, exit 0).
