wip

Advance work-in-progress across many repos by fanning out a subagent tree that rebases every branch, resolves conflicts, tests, and fixes failures — looping while it makes progress and ending with a ✅/❌ tree report. Use when the user wants to advance, process, or sweep their WIP across projects (the manual `j g` → /git:conflicts → `j ta` → /build:fix loop, automated). Accepts optional include/exclude project filters.