Nomad changes

docs/snippets/kotlin/api/client_extract_single_file.md

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+```kotlin title="Kotlin"
+import java.net.URI
+import java.net.http.HttpClient
+import java.net.http.HttpRequest
+import java.net.http.HttpResponse
+import java.nio.file.Files
+import java.nio.file.Paths
+
+fun main() {
+    val client = HttpClient.newHttpClient()
+    val path = Paths.get("document.pdf")
+    val bytes = Files.readAllBytes(path)
+    val fileName = path.fileName.toString()
+
+    val boundary = "----KreuzbergBoundary${System.currentTimeMillis()}"
+    val crlf = "\r\n"
+    val header = (
+        "--$boundary$crlf" +
+        "Content-Disposition: form-data; name=\"file\"; filename=\"$fileName\"$crlf" +
+        "Content-Type: application/pdf$crlf$crlf"
+    ).toByteArray()
+    val footer = "$crlf--$boundary--$crlf".toByteArray()
+
+    val body = ByteArray(header.size + bytes.size + footer.size)
+    System.arraycopy(header, 0, body, 0, header.size)
+    System.arraycopy(bytes, 0, body, header.size, bytes.size)
+    System.arraycopy(footer, 0, body, header.size + bytes.size, footer.size)
+
+    val request = HttpRequest.newBuilder()
+        .uri(URI.create("http://localhost:8000/extract"))
+        .header("Content-Type", "multipart/form-data; boundary=$boundary")
+        .POST(HttpRequest.BodyPublishers.ofByteArray(body))
+        .build()
+
+    val response = client.send(request, HttpResponse.BodyHandlers.ofString())
+    println(response.body())
+}
+```