Fix icon loading in PyInstaller builds

PyInstaller bundles data files into sys._MEIPASS, not the executable directory.

- Add get_resource_path() helper in main.py and main_window.py
- Use _MEIPASS for bundled resources (icon, web files)
- Keep app_dir pointing to executable directory for user data (macros.json)

This fixes the missing icon in taskbar and system tray on Windows builds.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

main.py

@@ -7,21 +7,32 @@ import multiprocessing
 
 
 def get_app_dir():
-    """Get the application directory."""
+    """Get the application directory (where macros.json and macro_images are stored)."""
     if getattr(sys, 'frozen', False):
-        # Running as compiled executable
+        # Running as compiled executable - use executable's directory for user data
         return os.path.dirname(sys.executable)
     else:
         # Running as script
         return os.path.dirname(os.path.abspath(__file__))
 
 
+def get_resource_path(relative_path):
+    """Get the path to a bundled resource file."""
+    if getattr(sys, 'frozen', False):
+        # Running as compiled executable - resources are in _MEIPASS
+        base_path = sys._MEIPASS
+    else:
+        # Running as script - resources are in the script directory
+        base_path = os.path.dirname(os.path.abspath(__file__))
+    return os.path.join(base_path, relative_path)
+
+
 def main():
     """Main entry point."""
     # Required for multiprocessing on Windows
     multiprocessing.freeze_support()
 
-    # Get app directory
+    # Get directories
     app_dir = get_app_dir()
 
     # Import PySide6 after freeze_support
@@ -34,8 +45,8 @@ def main():
     app.setApplicationName("MacroPad Server")
     app.setOrganizationName("MacroPad")
 
-    # Set application icon
-    icon_path = os.path.join(app_dir, "Macro Pad.png")
+    # Set application icon (from bundled resources)
+    icon_path = get_resource_path("Macro Pad.png")
     if os.path.exists(icon_path):
         app.setWindowIcon(QIcon(icon_path))