RED4ext logging shim

EdgeWeightGPS is a RED4ext plugin used to probe native GPS/mappin code paths without changing gameplay data.

It writes EdgeWeightGPS.log beside the installed DLL:

Cyberpunk 2077/red4ext/plugins/EdgeWeightGPS/EdgeWeightGPS.log

Current behavior:

Logs plugin load/unload.
Logs the RED4ext plugin handle and SDK pointer value passed to Main.
Registers Running game-state callbacks so route tests can be timestamped.
Hooks selected native wrappers and cores around GPSSystem, mappin tracking, world-map mappin selection, and map path framing.
Resolves the native mappin system when one of those paths fires, logs relevant vtable slot addresses, and temporarily hooks the route-adjacent slots.

Current route-probe focus:

FrameMappinPath wrapper/core: 0x27c4314, 0x27bc1ec
SetSelectedMappin wrappers/core: 0x27c4a38, 0x27c4944, 0x27c49c4, 0x27c1684
TrackCustomPositionMappin wrapper/core: 0x27c4aac, 0x27c2318
mappin-system slots 0x1f0, 0x280, and 0x2f0

Build and install from the Fedora toolbox:

toolbox run -c 2077 ./tools/install_red4ext_shim.sh

This shim is read-only. It does not enable any of the archived traffic data patches.