Use exact versions in webui frontend package.json to satisfy the monorepo pinned dependency policy enforced by GitHub Actions. Co-authored-by: Cursor <cursoragent@cursor.com>
Document main/upstream-sync/feature branch strategy, add sync/push scripts, track .pi/agent extensions and webui in git, and disable startup changelog via showChangelogOnStartup. Co-authored-by: Cursor <cursoragent@cursor.com>