Phase 1 wave 3 + barrel: BaseNodeAdapter + index.js exports

- src/nodered/BaseNodeAdapter.js — base class for every nodeClass.js
  Lifecycle: config build → domain instantiate → child.register on
  Port 2 → tick (opt-in) or 'output-changed' subscription (default
  event-driven) → status updater → input dispatch via commandRegistry →
  close handler with clean teardown.
- index.js — additive exports of all Phase 1 modules:
  UnitPolicy, ChildRouter, LatestWinsGate, HealthStatus, BaseDomain,
  statusBadge, StatusUpdater, createRegistry, CommandRegistry,
  BaseNodeAdapter, stats. Existing exports unchanged.

113 unit tests pass under node:test.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

index.js

@@ -35,6 +35,21 @@ const { loadModel } = require('./datasets/assetData/modelData/index.js');
 const { POSITIONS, POSITION_VALUES, isValidPosition } = require('./src/constants/positions.js');
 const Fysics = require('./src/convert/fysics.js');
 
+// Refactor platform infrastructure (additive — see .claude/refactor/CONTRACTS.md).
+// Domain-side
+const UnitPolicy = require('./src/domain/UnitPolicy.js');
+const ChildRouter = require('./src/domain/ChildRouter.js');
+const LatestWinsGate = require('./src/domain/LatestWinsGate.js');
+const HealthStatus = require('./src/domain/HealthStatus.js');
+const BaseDomain = require('./src/domain/BaseDomain.js');
+// Node-RED-side
+const { statusBadge } = require('./src/nodered/statusBadge.js');
+const { StatusUpdater } = require('./src/nodered/statusUpdater.js');
+const { createRegistry, CommandRegistry } = require('./src/nodered/commandRegistry.js');
+const BaseNodeAdapter = require('./src/nodered/BaseNodeAdapter.js');
+// Stats helpers
+const stats = require('./src/stats/index.js');
+
 // Export everything
 module.exports = {
     predict,
@@ -63,5 +78,17 @@ module.exports = {
     POSITIONS,
     POSITION_VALUES,
     isValidPosition,
-    Fysics
+    Fysics,
+    // refactor infra (Phase 1)
+    UnitPolicy,
+    ChildRouter,
+    LatestWinsGate,
+    HealthStatus,
+    BaseDomain,
+    statusBadge,
+    StatusUpdater,
+    createRegistry,
+    CommandRegistry,
+    BaseNodeAdapter,
+    stats
 };