# Sprint 189 Plan: Replay and Rollback Enforcement II

## Context
Contract enforcement must integrate with production completion loop.

## Goals
1. Wire replay/rollback enforcement into production loop
2. Require deterministic evidence artifacts for closure
3. Add loop-level blocked reason normalization

## Steps

### Step 1984: Production loop contract preflight (10 tests)
Add preflight checks for replay/rollback contract completeness.

### Step 1985: Evidence artifact closure checks (10 tests)
Require contract-declared artifacts before green status.

### Step 1986: Blocked reason normalization (8 tests)
Normalize blocked reasons for missing contract/evidence cases.

### Step 1987: Loop summary contract diagnostics (8 tests)
Expose deterministic counters in loop summary JSON.

### Step 1988: Sprint 189 Integration Summary (8 tests)
Add `editor/src/Sprint189IntegrationSummary.h`.

## Architecture Gate
- Production loop closure requires contract-complete evidence.