Feature Flags Evaluator Phase 2a · Evaluator Service Contract + Deterministic JS Module + Examples Runner

Evaluator module is LIVE · pure JS · runs in browser + Node · reads registry.json directly. Phase 2a+ HTTP boundary is now live as a sibling folder — service.html · feature-flags-service/ · parity-locked Python port · 19/19 examples pass · dev-mode only.
Still not built: Redis cache · pubsub · override stores (2b) · transition API (2c) · admin flip UI (3). Contract · evaluator_contract.json · Module · evaluator.js · Examples · evaluator_examples.json