v0.2.0

Changelog

• 058c9ce ci: migrate goreleaser config to v2 schema
• 436aa80 feat: add explicit --hex/-x flag for default hex output format
• fbc2355 feat: default password generation to simple, shell-safe character set
• a8f4c0b fix: eliminate modulo bias, insecure fallback, and infinite loop in password generation
• 0f26da5 refactor: replace cobra with kong for CLI parsing
• e69dfa2 refactor: simplify CLI using kong idioms