Add Api and startup check for sufficient storage capacity (#13888)

MediaBrowser.Model/System/SystemStorageInfo.cs

@@ -0,0 +1,56 @@
+using System.Collections.Generic;
+
+namespace MediaBrowser.Model.System;
+
+/// <summary>
+/// Contains informations about the systems storage.
+/// </summary>
+public class SystemStorageInfo
+{
+    /// <summary>
+    /// Gets or sets the program data path.
+    /// </summary>
+    /// <value>The program data path.</value>
+    public required FolderStorageInfo ProgramDataFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the web UI resources path.
+    /// </summary>
+    /// <value>The web UI resources path.</value>
+    public required FolderStorageInfo WebFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the items by name path.
+    /// </summary>
+    /// <value>The items by name path.</value>
+    public required FolderStorageInfo ImageCacheFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the cache path.
+    /// </summary>
+    /// <value>The cache path.</value>
+    public required FolderStorageInfo CacheFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the log path.
+    /// </summary>
+    /// <value>The log path.</value>
+    public required FolderStorageInfo LogFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the internal metadata path.
+    /// </summary>
+    /// <value>The internal metadata path.</value>
+    public required FolderStorageInfo InternalMetadataFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the transcode path.
+    /// </summary>
+    /// <value>The transcode path.</value>
+    public required FolderStorageInfo TranscodingTempFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the storage informations of all libraries.
+    /// </summary>
+    public required IReadOnlyCollection<LibraryStorageInfo> Libraries { get; set; }
+}