## Why

Phase 1 already proved the shadow pending scaffold can be added without drifting RC1. That did not answer the only question that actually matters for this strategy now: after a false veto, which glued weak-rebound paths deserve a fast trend reentry, and is the bottleneck entry timing or the post-entry exit treatment?

The next step should stay lean. We do not need a new platform. We need a repeatable review pack that turns this question into concrete subtype-level evidence.

## What Changes

- Add a dedicated review script for glued followthrough profit-loop analysis.
- Reconstruct blocked-candidate observations directly from strategy logic.
- Compare probe reentry trades across:
- subtype lane
- same-close vs next-open execution
- post-entry upside and post-exit followthrough
- Publish CSV + Markdown outputs.
- Keep RC1 default strategy behavior unchanged.

## Capabilities

### New Capabilities
- `followthrough-profit-loop-research`: reproducible blocked-candidate and reentry-trade review focused on false-veto recovery.

### Unchanged Capabilities
- `glued-followthrough-shadow-pending`: existing Phase 1 pending scaffold remains intact.
- `shadow-branch-observation`: RC1 default governance path remains unchanged.

## Impact

- Affected code: new review script, new tests, new OpenSpec change pack.
- Runtime impact: offline research/reporting only.
- Strategy impact: none to RC1 default branch.