Nomad changes

docs/snippets/wasm/api/client_extract_single_file.md

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+```typescript title="WASM"
+// HTTP client approach for file extraction via multipart upload
+// Use this when uploading files from a browser form
+
+const fileInput = document.getElementById("file") as HTMLInputElement;
+const file = fileInput.files?.[0];
+
+if (file) {
+  const formData = new FormData();
+  formData.append("file", file);
+  formData.append("mime_type", file.type || "application/octet-stream");
+
+  const response = await fetch("http://localhost:8000/extract/file", {
+    method: "POST",
+    body: formData,
+  });
+
+  const result = await response.json();
+  console.log(`Extracted ${result.content.length} characters`);
+  console.log(`Title: ${result.metadata?.title ?? "Unknown"}`);
+}
+```