feat(freight): track onboarding-phase edit history for companies

Ticket #238 — pre-approval edits and document uploads write straight
to the live company row with no approval gate and, until now, no
trace. Adds an append-only company_revisions log (diffed field
changes, document uploads) recorded from updateProfile and
uploadCompanyDocuments, exposed via GET /companies/:id/revisions and
shown as "Version history" on the backoffice customer detail page.

apps/edr-freight-web/backoffice/src/components/customers/CompanyRevisionHistory.tsx

@@ -0,0 +1,53 @@
+import { Badge, Box, Card, Group, Stack, Text } from "@mantine/core";
+import { useQuery } from "@tanstack/react-query";
+import { History } from "lucide-react";
+
+import { api } from "@/services/api";
+import { formatDate } from "./format";
+
+/**
+ * Onboarding-phase edit history: what changed on the company record before it
+ * reached Active, the write path that has no approval gate (unlike edits made
+ * after approval, which go through {@link ChangeRequestReview} instead).
+ */
+export function CompanyRevisionHistory({ companyId }: { companyId: string }) {
+  const query = useQuery(
+    api.customers.revisions.queryOptions({ input: { id: companyId } }),
+  );
+  const revisions = query.data ?? [];
+  if (revisions.length === 0) return null;
+
+  return (
+    <Card withBorder>
+      <Stack gap="sm">
+        <Group gap="xs">
+          <History size={16} />
+          <Text fw={600} c="edr-text">
+            Version history
+          </Text>
+        </Group>
+        {revisions.map((rev) => (
+          <Box key={rev.id}>
+            <Group gap="sm" wrap="nowrap" align="flex-start">
+              <Badge color="gray" variant="light" radius="md" tt="none">
+                {formatDate(rev.createdAt)}
+              </Badge>
+              <Text size="sm" c="edr-text" tt="capitalize">
+                {rev.summary}
+              </Text>
+            </Group>
+            {rev.changes.length > 0 && (
+              <Stack gap={2} ml={4} mt={4}>
+                {rev.changes.map((c, i) => (
+                  <Text key={i} size="xs" c="dimmed">
+                    {c.label}: {c.from ?? "—"} → {c.to ?? "—"}
+                  </Text>
+                ))}
+              </Stack>
+            )}
+          </Box>
+        ))}
+      </Stack>
+    </Card>
+  );
+}

apps/edr-freight-web/backoffice/src/components/customers/index.ts

@@ -13,6 +13,7 @@ export {
   ChangeRequestReview,
   ChangeRequestPendingBadge,
 } from "./ChangeRequestReview";
+export { CompanyRevisionHistory } from "./CompanyRevisionHistory";
 export {
   RequestDocumentChangeModal,
   type RequestDocumentChangeModalProps,