Adds --verify (requires --public-key) to LicenseMinterCli. After writing the output file the CLI parses the freshly-minted token through LicenseValidator against the supplied public key. On verify failure the output file is deleted (so the bad token is not accidentally shipped) and the CLI exits 3. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>