Rename project to sacredK

sacred_re.dll/.exe/.ini/.log/_crash files are now sacredK.*; inventory saves
with the old "sacred_re.inventory" format id still load.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/mods/guards.cpp

@@ -11,7 +11,7 @@ namespace game {
 // cParticleSystem_burningBone::Render (vf04 0x774e10, vtable 0x895b84):
 // crashed reading the device it was given, which was null (2026-10-16, Esc
 // pressed while walking; Windows reported sacred.exe+0x374e39). Who renders
-// it without a device is not known yet (sacred_re_crash.txt will tell). With
+// it without a device is not known yet (sacredK_crash.txt will tell). With
 // no device there is nothing to draw.
 // (device, a 4x4 matrix by value; ret 0x44).
 struct Matrix4 {