v0.1.0

Changelog

• 419fb0c ci: publish homebrew formula via github app token
• ce4d3df refactor(cli): migrate to cobra and add version subcommand
• 35c0dc2 refactor(render): drop provider-specific credential pre-check
• 7556aaa feat: token pre-check, multiline reject, fail-closed guard
• 7d81208 ci: add build/test workflow and release automation
• 46805d6 docs: add README
• c30e4c7 feat(cli): add render command with -f/-o/stdin
• a9540aa feat(render): vals-backed resolve pipeline (fail-closed runtime)
• 395657e feat(dotenv): line-preserving scanner and emitter
• 42bf701 chore: initialize module