Add local blob-triggered CSV validation with Azurite

tools/ImportAssist.Upload/Program.cs

@@ -0,0 +1,21 @@
+using Azure.Storage.Blobs;
+
+if (args.Length != 1 || !File.Exists(args[0]))
+{
+    Console.Error.WriteLine("Bitte eine vorhandene Datei angeben.");
+    Environment.ExitCode = 1;
+    return;
+}
+
+var container = new BlobContainerClient(
+    "UseDevelopmentStorage=true",
+    "imports");
+
+await container.CreateIfNotExistsAsync();
+
+var blobName = $"{Guid.NewGuid():N}-{Path.GetFileName(args[0])}";
+var blob = container.GetBlobClient(blobName);
+
+await blob.UploadAsync(args[0]);
+
+Console.WriteLine($"Hochgeladen: imports/{blobName}");