Refactor project into two standalone components

Split monorepo into separate units for future independent repositories:
- media-server/: Standalone FastAPI server with own README, requirements,
  config example, and CLAUDE.md
- haos-integration/: HACS-ready Home Assistant integration with hacs.json,
  own README, and CLAUDE.md

Both components now have their own .gitignore files and can be easily
extracted into separate repositories.

Also adds custom icon support for scripts configuration.

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

haos-integration/custom_components/remote_media_player/translations/en.json

@@ -0,0 +1,61 @@
+{
+  "config": {
+    "step": {
+      "user": {
+        "title": "Connect to Media Server",
+        "description": "Enter the connection details for your Media Server.",
+        "data": {
+          "host": "Host",
+          "port": "Port",
+          "token": "API Token",
+          "name": "Name",
+          "poll_interval": "Poll Interval"
+        },
+        "data_description": {
+          "host": "Hostname or IP address of the Media Server",
+          "port": "Port number (default: 8765)",
+          "token": "API authentication token from the server configuration",
+          "name": "Display name for this media player",
+          "poll_interval": "How often to poll for status updates (seconds)"
+        }
+      }
+    },
+    "error": {
+      "cannot_connect": "Failed to connect to the Media Server. Please check the host and port.",
+      "invalid_auth": "Invalid API token. Please check your token.",
+      "unknown": "An unexpected error occurred."
+    },
+    "abort": {
+      "already_configured": "This Media Server is already configured."
+    }
+  },
+  "options": {
+    "step": {
+      "init": {
+        "title": "Options",
+        "data": {
+          "poll_interval": "Poll Interval"
+        },
+        "data_description": {
+          "poll_interval": "How often to poll for status updates (seconds)"
+        }
+      }
+    }
+  },
+  "services": {
+    "execute_script": {
+      "name": "Execute Script",
+      "description": "Execute a pre-defined script on the media server.",
+      "fields": {
+        "script_name": {
+          "name": "Script Name",
+          "description": "Name of the script to execute (as defined in server config)"
+        },
+        "args": {
+          "name": "Arguments",
+          "description": "Optional list of arguments to pass to the script"
+        }
+      }
+    }
+  }
+}