first commit of refactor

frontend/src/components/AddressForm.jsx

@@ -0,0 +1,45 @@
+import { useState } from "react";
+import Input from "./Input";
+import Button from "./Button";
+
+export default function AddressForm({ onSubmit }) {
+  const [address, setAddress] = useState("");
+  const [label, setLabel] = useState("");
+
+  const canSubmit = address.trim().length > 0;
+
+  function handleSubmit(e) {
+    e.preventDefault();
+    if (!canSubmit) return;
+
+    onSubmit({
+      address: address.trim(),
+      label: label.trim(),
+    });
+
+    setAddress("");
+    setLabel("");
+  }
+
+  return (
+    <form onSubmit={handleSubmit}>
+      <Input
+        label="Blockchain Address"
+        value={address}
+        onChange={setAddress}
+        placeholder="0x..."
+      />
+
+      <Input
+        label="Label (optional)"
+        value={label}
+        onChange={setLabel}
+        placeholder="Treasury, Cold Wallet, etc."
+      />
+
+      <Button type="submit" disabled={!canSubmit}>
+        Add Address
+      </Button>
+    </form>
+  );
+}