v0.3.0

Added

• pkg/litefake — a fake openccu-lite box. occulited's HTTP API
  (token auth with method tiers, the XML-RPC proxy with its verbatim
  init refusal, the SSE event stream with resume/filters/resync and
  stream limits, /state, metadata, system, pairing, UPnP), composed
  on top of per-interface simulator listeners the way occulited sits on
  a real box's interface processes. Moved here from OpenCCU-Loom's test
  harness (tests/harness/litefake) so any client can use it; written
  from the condensed wire contract in pkg/litefake/CONTRACT.md. That
  contract is pre-1.0, so the package may change in minor releases.
• -mode lite on the CLI: serve the fake box standalone on a fixed
  address (-lite-listen, default :2121), loading every embedded
  device type by default; -lite-devices restricts the fleet,
  -lite-tokens, -lite-interfaces and -lite-tls steer auth,
  topology and transport.
• litefake.Options.ListenAddr: bind the box API to a fixed
  address; empty keeps the loopback-ephemeral in-process test default.