Phase: 3 — L7 Networking + WAF + API Security Goal: Wire all Phase 2 and Phase 3 components together into a single production-grade security proxy. Add structured logging, hot-reload config, integration tests, fuzz tests, and load testing. Day 90 capstone: Unified Security Proxy.
Background in this wiki: OSI guide, Part 15 (architecture decisions by layer) and HTTPS guide Ch 18 (end-to-end diagnosis).