implement-with-remote-feedback

Execute a plan document into code through a disciplined, git-centric workflow — plan's phases refined into reviewable sprints up front, clean checkout, properly named branch, continuous WIP tracking, small meaningful commits, and a push after every commit so the remote branch is the monitoring channel. Use when a plan doc exists, the user is ready to build it, and others need live visibility, with optional in-flight PR, per-sprint PR, or PR-at-end strategies elected up front.