Initial commit: Media server and Home Assistant integration

- FastAPI server for Windows media control via WinRT/SMTC
- Home Assistant custom integration with media player entity
- Script button entities for system commands
- Position tracking with grace period for track skip handling
- Server availability detection in HA entity

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

media_server/requirements.txt

@@ -0,0 +1,28 @@
+# Core dependencies
+fastapi>=0.109.0
+uvicorn[standard]>=0.27.0
+pydantic>=2.0
+pydantic-settings>=2.0
+pyyaml>=6.0
+
+# Windows media control (install on Windows only)
+# pip install winsdk pywin32 pycaw comtypes
+winsdk>=1.0.0b10; sys_platform == "win32"
+pywin32>=306; sys_platform == "win32"
+comtypes>=1.2.0; sys_platform == "win32"
+pycaw>=20230407; sys_platform == "win32"
+
+# Linux media control (install on Linux only)
+# pip install dbus-python PyGObject
+# Note: dbus-python requires system dependencies:
+# sudo apt-get install libdbus-1-dev libglib2.0-dev python3-gi
+# dbus-python>=1.3.2; sys_platform == "linux"
+# PyGObject>=3.46.0; sys_platform == "linux"
+
+# macOS media control
+# No additional dependencies needed - uses osascript (AppleScript)
+
+# Android media control (via Termux)
+# Requires Termux and Termux:API apps from F-Droid
+# In Termux: pkg install python termux-api
+# No additional pip packages needed