iNAV RealFlight bridge — fly on a real tune — SITL Forge - FPV Laboratory Steam update #798830

This update adds a new, much lower-latency way to connect SITL Forge to **iNAV SITL**, plus real-time physics improvements that benefit every flight mode. ## ✨ New: iNAV RealFlight transport (recommended) SITL Forge now speaks iNAV's native **RealFlight** interface (`--sim=rf`). Instead of streaming sensors over MSP and polling for motor outputs, iNAV runs **in lockstep** with the simulator — it advances one step per exchange and pushes its motors to us directly. What that means for you: **heavy quads finally fly on a normal PID tune.** The old MSP path forced a near-zero I-term or the craft would oscillate; the RealFlight bridge removes that latency, so your 10" / 13" builds hold attitude the way they should. - Lockstep, low-latency control loop - iNAV pushes motors directly — no polling round-trip - GPS / nav modes (POSHOLD, RTH, waypoints) driven by your simulated position - Now the *...