Runtime deps: ethers 6.16.0 (all Ethereum operations) and
libsodium-wrappers-sumo 0.8.2 (Argon2id + XSalsa20-Poly1305 for
encrypting secrets at rest). README now documents all dependencies
with versions/licenses, a crypto policy forbidding raw primitives
in application code, and the updated encryption scheme.
Makefile, Dockerfile, CI workflow, prettier config, manifests for
Chrome (MV3) and Firefox (MV2), source directory structure, and
minimal test suite. All checks pass.