Add local repo contents

frontend/src/app/components/shared/VersionChip.tsx

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+/**
+ * Small "V3" badge for document rows/listings, rendered when the doc has
+ * at least one assistant-edit version. Matches the chip in the side
+ * panel's edit-tab header.
+ */
+export function VersionChip({ n }: { n: number | null | undefined }) {
+    if (typeof n !== "number" || !Number.isFinite(n) || n < 1) return null;
+    return (
+        <span className="shrink-0 inline-flex items-center rounded-md border border-gray-200 bg-white px-1 py-0.5 text-[10px] font-medium text-gray-500">
+            V{n}
+        </span>
+    );
+}