Remove lastName field from UserSettings and database

- Removed lastName from UserSettings interface
- Updated UserSettingsForm to remove lastName input field
- Removed lastName from all database operations
- Updated form validation schema to remove lastName validation
- Updated ViewLocationCard to use only firstName for recipient name
- Removed lastName from user settings form state tracking
- Updated Croatian translations to reflect changes

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/lib/actions/userSettingsActions.ts

@@ -15,7 +15,6 @@ import * as IBAN from 'iban';
 export type State = {
     errors?: {
         firstName?: string[];
-        lastName?: string[];
         street?: string[];
         town?: string[];
         iban?: string[];
@@ -31,7 +30,6 @@ export type State = {
  */
 const FormSchema = (t: IntlTemplateFn) => z.object({
     firstName: z.string().optional(),
-    lastName: z.string().optional(),
     street: z.string().optional(),
     town: z.string().optional(),
     iban: z.string()
@@ -57,15 +55,6 @@ const FormSchema = (t: IntlTemplateFn) => z.object({
     message: t("first-name-required"),
     path: ["firstName"],
 })
-.refine((data) => {
-    if (data.show2dCodeInMonthlyStatement) {
-        return !!data.lastName && data.lastName.trim().length > 0;
-    }
-    return true;
-}, {
-    message: t("last-name-required"),
-    path: ["lastName"],
-})
 .refine((data) => {
     if (data.show2dCodeInMonthlyStatement) {
         return !!data.street && data.street.trim().length > 0;
@@ -148,7 +137,6 @@ export const updateUserSettings = withUser(async (user: AuthenticatedUser, prevS
 
     const validatedFields = FormSchema(t).safeParse({
         firstName: formData.get('firstName') || undefined,
-        lastName: formData.get('lastName') || undefined,
         street: formData.get('street') || undefined,
         town: formData.get('town') || undefined,
         iban: formData.get('iban') || undefined,
@@ -165,7 +153,7 @@ export const updateUserSettings = withUser(async (user: AuthenticatedUser, prevS
         };
     }
 
-    const { firstName, lastName, street, town, iban, currency, show2dCodeInMonthlyStatement } = validatedFields.data;
+    const { firstName, street, town, iban, currency, show2dCodeInMonthlyStatement } = validatedFields.data;
 
     // Normalize IBAN: remove spaces and convert to uppercase
     const normalizedIban = iban ? iban.replace(/\s/g, '').toUpperCase() : null;
@@ -177,7 +165,6 @@ export const updateUserSettings = withUser(async (user: AuthenticatedUser, prevS
     const userSettings: UserSettings = {
         userId,
         firstName: firstName || null,
-        lastName: lastName || null,
         street: street || null,
         town: town || null,
         iban: normalizedIban,

app/lib/db-types.ts

@@ -20,8 +20,6 @@ export interface UserSettings {
     userId: string;
     /** first name */
     firstName?: string | null;
-    /** last name */
-    lastName?: string | null;
     /** street */
     street?: string | null;
     /** town */

app/ui/UserSettingsForm.tsx

@@ -28,7 +28,6 @@ const FormFields: FC<FormFieldsProps> = ({ userSettings, errors, message }) => {
     // Track current form values for real-time validation
     const [formValues, setFormValues] = useState({
         firstName: userSettings?.firstName ?? "",
-        lastName: userSettings?.lastName ?? "",
         street: userSettings?.street ?? "",
         town: userSettings?.town ?? "",
         iban: formatIban(userSettings?.iban) ?? "",
@@ -41,7 +40,7 @@ const FormFields: FC<FormFieldsProps> = ({ userSettings, errors, message }) => {
 
     // Check if any required field is missing (clean IBAN of spaces for validation)
     const cleanedIban = formValues.iban.replace(/\s/g, '');
-    const hasMissingData = !formValues.firstName || !formValues.lastName || !formValues.street || !formValues.town || !cleanedIban || !formValues.currency;
+    const hasMissingData = !formValues.firstName || !formValues.street || !formValues.town || !cleanedIban || !formValues.currency;
 
     // Track whether to generate 2D code for tenant (use persisted value from database)
     const [show2dCodeInMonthlyStatement, setShow2dCodeInMonthlyStatement] = useState(
@@ -94,30 +93,6 @@ const FormFields: FC<FormFieldsProps> = ({ userSettings, errors, message }) => {
                         </div>
                     </div>
 
-                    <div className="form-control w-full">
-                        <label className="label">
-                            <span className="label-text">{t("last-name-label")}</span>
-                        </label>
-                        <input
-                            id="lastName"
-                            name="lastName"
-                            type="text"
-                            placeholder={t("last-name-placeholder")}
-                            className="input input-bordered w-full placeholder:text-gray-600"
-                            defaultValue={userSettings?.lastName ?? ""}
-                            onChange={(e) => handleInputChange("lastName", e.target.value)}
-                            disabled={pending}
-                        />
-                        <div id="lastName-error" aria-live="polite" aria-atomic="true">
-                            {errors?.lastName &&
-                                errors.lastName.map((error: string) => (
-                                    <p className="mt-2 text-sm text-red-500" key={error}>
-                                        {error}
-                                    </p>
-                                ))}
-                        </div>
-                    </div>
-
                     <div className="form-control w-full">
                         <label className="label">
                             <span className="label-text">{t("street-label")} </span>

app/ui/ViewLocationCard.tsx

@@ -28,7 +28,7 @@ export const ViewLocationCard:FC<ViewLocationCardProps> = ({location, userSettin
         ImePlatitelja: tenantName ?? "",
         AdresaPlatitelja: tenantStreet ?? "",
         SjedistePlatitelja: tenantTown ?? "",
-        Primatelj: (userSettings?.firstName && userSettings?.lastName) ? `${userSettings.firstName} ${userSettings.lastName}` : "",
+        Primatelj: userSettings?.firstName ?? "",
         AdresaPrimatelja: userSettings?.street ?? "",
         SjedistePrimatelja: userSettings?.town ?? "",
         IBAN: userSettings?.iban ?? "",