Move vendor-neutral firewall and network types (FirewallAction, Direction,
IpProtocol, NetworkProtocol, VipMode, LaggProtocol) from harmony Score
modules to harmony_types::firewall as industry-standard IaC types.
Display impls use human-readable names (IPv4, CARP, LACP) — not wire
format. OPNsense-specific wire translations live in opnsense-api::wire
via the ToOPNsenseValue trait ("inet", "carp", "lacp").
Dependency chain: harmony_types → opnsense-api → opnsense-config → harmony.
Users import types from harmony_types, translations happen transparently
in the infrastructure layer.
Includes 6 new tests verifying all wire value translations.
Jean-Gabriel Gill-Couture
b98b2aa3f7