Commit all staged and unstaged changes into git, assign the next tag in sequence, then ask for confirmation before pushing.

Before committing, check the current branch (`git branch --show-current`). If it's
`main`, follow CLAUDE.md's Branching & Merge Requests exceptions (small fixes,
typos/formatting, or explicit user request) — otherwise stop and ask, since releases
are not one of the documented straight-to-main cases.

No tagging scheme (semver vs. calver, `v` prefix, etc.) is documented in CLAUDE.md
yet — infer the existing pattern from `git tag --list` if any tags exist, otherwise
ask the user which scheme to start with instead of guessing.