add export/inport number

apps/edr-freight-web/backoffice/src/components/fleet/FleetFormDialog.tsx

@@ -271,8 +271,14 @@ const FleetFormDialog = ({
       return;
     }
     if (!validate()) return;
+    // Derived fields are never edited, so form state for them can be stale (or
+    // seeded from the record) — recompute before building the payload.
+    const submitted: Record<string, unknown> = { ...values };
+    fields.forEach((field) => {
+      if (field.derivedValue) submitted[field.name] = field.derivedValue(values);
+    });
     const payload = Object.fromEntries(
-      Object.entries(values)
+      Object.entries(submitted)
         .map(([key, value]) => {
           if (value === FLEET_SELECT_NONE || value === "")
             return [key, undefined];
@@ -294,6 +300,23 @@ const FleetFormDialog = ({
     // only by verification and never hand-edited.
     const isDisabled = Boolean(field.disabled || field.faydaLocked);
 
+    // Computed from other fields (e.g. the import run implied by the export
+    // run) — read-only, and recomputed here rather than read from form state.
+    if (field.derivedValue) {
+      return (
+        <TextInput
+          key={field.name}
+          label={field.label}
+          description={field.description}
+          placeholder={field.placeholder}
+          value={field.derivedValue(values)}
+          readOnly
+          variant="filled"
+          error={error}
+        />
+      );
+    }
+
     if (field.type === "radio") {
       return (
         <Radio.Group
@@ -319,6 +342,8 @@ const FleetFormDialog = ({
         <Select
           key={field.name}
           label={field.label}
+          description={field.description}
+          placeholder={field.placeholder}
           data={field.options ?? []}
           value={
             value == null || value === ""