28e5922fce
Add detailed documentation to the masque handler package covering: - Package-level doc explaining MASQUE protocol (RFC 9298 CONNECT-UDP, RFC 9114 CONNECT-TCP) and request flow - Doc comments on all exported and unexported types, methods, and structs - Inline comments explaining HTTP/3 context extraction and data path - Field-level comments on metadata struct explaining each config param - Step-by-step flow and data path diagrams for handleConnectUDP and handleConnectTCP