Feature Flag Manager Overview Implements feature flag systems for controlled rollouts and A/B testing. Covers flag definition, deterministic user bucketing (same user always sees the same variant), attribute-based targeting, percentage rollouts, and flag lifecycle management. Builds self-hosted solutions — no third-party dependencies. Instructions 1. Flag Definition Schema Store flags in database with in-memory cache (refresh every 30 seconds or on webhook). 2. Deterministic Bucketing Use MurmurHash3 for stable, uniform distribution: Properties: - Deterministic : Same user + same flag = same…