Worker F's README told users to 'cp .env.example .env' but a blanket .env.*
gitignore rule silently dropped it. Un-ignore .env.example (real .env stays
ignored) and generate the template from internal/config: every TAPIR_* var,
which command needs it, accurate defaults, op/port-forward notes for demo time.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Excludes build artifacts and the .claude/skills symlink (wired by the skills
installer, never committed — matches the mathias/skills convention) and local
env files.