# Sprint 179 Plan: Constructive Runtime GA Hardening and Tier Promotion Controls

## Context
`docs/constructive_editing_runtime_plan.md` Phase E calls for final end-to-end
hardening and promotion controls based on real evidence.

## Goals
1. Add constructive smoke scenarios across language families
2. Enforce rollout controls that only promote evidence-backed tiers
3. Publish a reproducible readiness report for release gating

## Steps

### Step 1934: End-to-end constructive smoke scenarios per language family (12 tests)
Create curated smoke flows for systems/managed/dynamic representative targets.

Tests (12): scenario pass/fail schema, deterministic seed control, expected output
assertions, and evidence attachment for each smoke run.

### Step 1935: Rollout control policy enforcement (10 tests)
Wire promotion policy to require replay/rollback + gate evidence thresholds.

Tests (10): promotion block on missing evidence, promotion allow on complete
evidence, policy override traceability, and deterministic rule evaluation.

### Step 1936: Tier promotion gate runner integration (10 tests)
Integrate policy checks with tier transitions and release gating workflows.

Tests (10): transition state machine validity, staged promotion/rollback behavior,
non-green prevention, and reproducible decision packets.

### Step 1937: Constructive runtime readiness report bundle (8 tests)
Generate release-grade report:
- smoke coverage matrix
- determinism/recovery metrics
- blocked classes + remediation backlog

Tests (8): report schema validity, artifact completeness, deterministic ordering,
and compatibility with downstream publish tooling.

### Step 1938: Sprint 179 Integration Summary (8 tests)
Add `editor/src/Sprint179IntegrationSummary.h`.
Record:
- `steps_completed=5`
- `constructive_smoke_scenarios_active=true`
- `promotion_controls_evidence_backed=true`
- `ga_readiness_report_published=true`
- `success=true`

## Architecture Gate
- No tier promotion without evidence-backed replay/recovery coverage
- Release readiness must include deterministic constructive smoke outcomes