Initial release: Emby Media Player integration for Home Assistant

Features:
- Media player entities for active Emby client sessions
- Full playback control (play, pause, stop, seek)
- Volume control and mute/unmute
- Next/previous track navigation
- Media metadata display (title, artist, album, thumbnail)
- Media library browsing
- WebSocket for real-time state updates with polling fallback
- Config flow UI for easy setup
- HACS compatible

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

custom_components/emby_player/strings.json

@@ -0,0 +1,43 @@
+{
+  "config": {
+    "step": {
+      "user": {
+        "title": "Connect to Emby Server",
+        "description": "Enter your Emby server connection details. You can find your API key in Emby Server Dashboard > Expert > Advanced > Security.",
+        "data": {
+          "host": "Host",
+          "port": "Port",
+          "api_key": "API Key",
+          "ssl": "Use SSL"
+        }
+      },
+      "user_select": {
+        "title": "Select User",
+        "description": "Select the Emby user account to use for browsing and playback.",
+        "data": {
+          "user_id": "User"
+        }
+      }
+    },
+    "error": {
+      "cannot_connect": "Cannot connect to Emby server. Please check the host and port.",
+      "invalid_auth": "Invalid API key. Please check your credentials.",
+      "no_users": "No users found on the Emby server.",
+      "unknown": "An unexpected error occurred."
+    },
+    "abort": {
+      "already_configured": "This Emby server and user combination is already configured."
+    }
+  },
+  "options": {
+    "step": {
+      "init": {
+        "title": "Emby Media Player Options",
+        "description": "Configure polling interval for session updates (used as fallback when WebSocket is unavailable).",
+        "data": {
+          "scan_interval": "Scan Interval"
+        }
+      }
+    }
+  }
+}