Collapse CSS-class presence checks and column-gate permutations into
table-driven variants. The rest of this file covers real user flows
(retry uniqueness FN-bug, paste/drag upload, plan approval, inline
editing, agent assignment, etc.) and was left intact.
- mobile responsive structure 6→1 (class-presence aggregate)
- Commits tab visibility 3→1 (it.each over done-task variants)
- Refinement button column gate 5→2 (it.each over columns)
- Workflow tab visibility 4→1 (it.each over data states)
5,676 → 5,433 LOC (-243). 190 tests still passing.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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