The 'sumo' build is required for crypto_pwhash (Argon2id), which Ente
uses to derive the KEK from the user's password. Pinned to exact
versions in package.json with integrity hashes in yarn.lock per repo
policy on hash-pinned external references.
package.json declares the project as ESM with NodeNext module resolution,
exposing dist/index.js as the library entry and dist/bin/quack.js as the
CLI binary. Dev dependencies are pinned to exact versions (yarn.lock holds
the integrity hashes per repo policy on hash-pinned external references).
Adds a placeholder src/index.ts and a single smoke test so make check is
not a no-op.
