Add CI/CD pipelines, NSIS installer, ES module bundling, and ruff linting

- Add Gitea Actions workflows: test.yml (lint + test on push/PR) and
  release.yml (build + NSIS installer + upload on v* tags)
- Add NSIS installer with optional desktop shortcut and auto-start
- Add esbuild bundler: ES module migration with IIFE bundle output
- Add build-dist-windows.sh for cross-building Windows distribution
- Fix all ruff lint errors (import sorting, unused imports, line length)
- Remove redundant scripts (start-server.bat, stop-server.bat,
  start-server-background.vbs)
- Update CLAUDE.md with CI/CD and release documentation

media_server/services/macos_media.py

@@ -3,7 +3,6 @@
 import asyncio
 import logging
 import subprocess
-import json
 from typing import Optional
 
 from ..models import MediaState, MediaStatus
@@ -203,11 +202,6 @@ class MacOSMediaController(MediaController):
     async def play(self) -> bool:
         """Resume playback using media key simulation."""
         # Use system media key
-        script = '''
-            tell application "System Events"
-                key code 16 using {command down, option down}
-            end tell
-        '''
         # Fallback: try specific app
         active_app = self._get_active_app()
         if active_app == "Spotify":