chore(#31): rename Windows binary meshcore_open -> offband_meshcore

BINARY_NAME in windows/CMakeLists.txt + InternalName/OriginalFilename in Runner.rc. Window title, CompanyName, ProductName, FileDescription already Offband; Android label already Offband Meshcore. macos/linux binary-name mirror: follow-up.

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

windows/CMakeLists.txt

@@ -4,7 +4,7 @@ project(meshcore_open LANGUAGES CXX)
 
 # The name of the executable created for the application. Change this to change
 # the on-disk name of your application.
-set(BINARY_NAME "meshcore_open")
+set(BINARY_NAME "offband_meshcore")
 
 # Explicitly opt in to modern CMake behaviors to avoid warnings with recent
 # versions of CMake.

windows/runner/Runner.rc

@@ -92,9 +92,9 @@ BEGIN
             VALUE "CompanyName", "Offband" "\0"
             VALUE "FileDescription", "Offband Meshcore" "\0"
             VALUE "FileVersion", VERSION_AS_STRING "\0"
-            VALUE "InternalName", "meshcore_open" "\0"
+            VALUE "InternalName", "offband_meshcore" "\0"
             VALUE "LegalCopyright", "Copyright (C) 2025 Offband. All rights reserved." "\0"
-            VALUE "OriginalFilename", "meshcore_open.exe" "\0"
+            VALUE "OriginalFilename", "offband_meshcore.exe" "\0"
             VALUE "ProductName", "Offband Meshcore" "\0"
             VALUE "ProductVersion", VERSION_AS_STRING "\0"
         END