Untrack the local cockpit-launcher wrappers

startrp-800x600.bat/.ps1 rode into the previous commit unintentionally;
remove them from tracking (local copies untouched) and gitignore them so
a bulk add cannot sweep them back in.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.gitignore

@@ -53,6 +53,10 @@ Thumbs.db
 desktop.ini
 .DS_Store
 
+# Local cockpit-launcher experiments — deliberately untracked
+assets/RP411/startrp-800x600.bat
+assets/RP411/startrp-800x600.ps1
+
 # Bundled game working copy: committed wholesale as runtime data (see
 # docs/ASSETS.md). Re-include the binaries the global rules above would skip.
 !assets/**/*.exe