feature flags Shipped
What this lens looks for
All features gated behind feature flags from initial implementation; FeatureFlagProvider interface (isEnabled(key) -> Bool); local default implementation (UserDefaults/SharedPreferences/localStorage/JSON config); swappable backend via DI; each spec lists flag keys in a Feature Flags section
What its verifier checks
No feature code reachable without a flag check; FeatureFlagProvider interface (not a concrete store) used at call sites; flag keys documented in spec; local default implementation present and injectable