feat: add aliyun oss storage foundation

Tiku.Infrastructure/Storage/ObjectStorageOptions.cs

@@ -0,0 +1,28 @@
+namespace Tiku.Infrastructure.Storage;
+
+public sealed class ObjectStorageOptions
+{
+    public const string SectionName = "Storage";
+
+    public string DefaultProvider { get; set; } = "local_dev";
+    public string DefaultBucket { get; set; } = "tenant-assets";
+    public string? PublicBaseUrl { get; set; }
+    public long MaxUploadBytes { get; set; } = 1024L * 1024 * 500;
+    public string[] AllowedMimePrefixes { get; set; } = ["image/", "video/", "audio/"];
+    public string[] AllowedMimeTypes { get; set; } =
+    [
+        "application/pdf",
+        "application/json",
+        "text/csv",
+        "application/vnd.ms-excel",
+        "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+        "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
+    ];
+
+    public bool RequireTenantPrefix { get; set; } = true;
+
+    public static bool BeValid(ObjectStorageOptions options) =>
+        options.MaxUploadBytes > 0 &&
+        !string.IsNullOrWhiteSpace(options.DefaultProvider) &&
+        !string.IsNullOrWhiteSpace(options.DefaultBucket);
+}