Burglin' Gnomes: finalize fix, docs, and BepInEx install support

Final tuned values baked in as defaults: HudScale=0.8, WorldLabelScale=0.8.

- install.sh gains METHOD=bepinex: installs BepInEx from vendor + the prebuilt
  plugin, with a matching uninstall that leaves BepInEx/ alone (other mods may
  depend on it). Success banner is now method-aware.
- Ship the prebuilt plugin DLL so users don't need a .NET SDK.
- Per-game README documenting why the camera is deliberately untouched
  (orthographic, constant orthographicSize = already Hor+), the two-canvas UI
  problem, tuning, and where the plugin log actually lives.
- Root README lists both games and both fix methods.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

games/BurglinGnomes/game.conf

@@ -9,7 +9,8 @@ ENGINE="Unity 6 (6000.0.62f1), Mono backend, URP + Cinemachine"
 # Fix method: BepInEx plugin (not SUWSF — no DRM, managed C# assemblies)
 METHOD="bepinex"
 LOADER="winhttp.dll"          # BepInEx's Doorstop proxy
+PLUGIN_DLL="BurglinGnomes.UltraWideFix.dll"
 LAUNCH_OPTION='WINEDLLOVERRIDES="winhttp=n,b" %command%'
 
 PREFIX_INI=""                 # no config-level tweak identified yet
-STATUS="IN PROGRESS — symptoms: camera zoomed (Vert-) + broken UI at 32:9"
+STATUS="Confirmed working at 5120x1440 (32:9) — HUD + nameplate scaling"