Remove tenantLastName field from LocationEditForm and database

- Removed tenantLastName from BillingLocation interface
- Updated LocationEditForm to remove tenantLastName input field
- Removed tenantLastName from all database operations (insert and update)
- Updated form validation schema to remove tenantLastName validation
- Updated ViewLocationCard to use only tenantFirstName for payer name
- Removed tenantLastName from tenant field state tracking

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

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

app/lib/actions/locationActions.ts

@@ -16,7 +16,6 @@ export type State = {
         locationName?: string[];
         generateTenantCode?: string[];
         tenantFirstName?: string[];
-        tenantLastName?: string[];
         tenantStreet?: string[];
         tenantTown?: string[];
         autoBillFwd?: string[];
@@ -38,7 +37,6 @@ const FormSchema = (t:IntlTemplateFn) => z.object({
     locationName: z.coerce.string().min(1, t("location-name-required")),
     generateTenantCode: z.boolean().optional().nullable(),
     tenantFirstName: z.string().optional().nullable(),
-    tenantLastName: z.string().optional().nullable(),
     tenantStreet: z.string().max(27).optional().nullable(),
     tenantTown: z.string().max(27).optional().nullable(),
     autoBillFwd: z.boolean().optional().nullable(),
@@ -52,7 +50,7 @@ const FormSchema = (t:IntlTemplateFn) => z.object({
   })
   // dont include the _id field in the response
   .omit({ _id: true })
-  // Add conditional validation: if generateTenantCode is true, tenant names are required
+  // Add conditional validation: if generateTenantCode is true, tenant fields are required
   .refine((data) => {
     if (data.generateTenantCode) {
       return !!data.tenantFirstName && data.tenantFirstName.trim().length > 0;
@@ -62,15 +60,6 @@ const FormSchema = (t:IntlTemplateFn) => z.object({
     message: t("tenant-first-name-required"),
     path: ["tenantFirstName"],
   })
-  .refine((data) => {
-    if (data.generateTenantCode) {
-      return !!data.tenantLastName && data.tenantLastName.trim().length > 0;
-    }
-    return true;
-  }, {
-    message: t("tenant-last-name-required"),
-    path: ["tenantLastName"],
-  })
   .refine((data) => {
     if (data.generateTenantCode) {
       return !!data.tenantStreet && data.tenantStreet.trim().length > 0;
@@ -125,7 +114,6 @@ export const updateOrAddLocation = withUser(async (user:AuthenticatedUser, locat
         locationName: formData.get('locationName'),
         generateTenantCode: formData.get('generateTenantCode') === 'on',
         tenantFirstName: formData.get('tenantFirstName') || null,
-        tenantLastName: formData.get('tenantLastName') || null,
         tenantStreet: formData.get('tenantStreet') || null,
         tenantTown: formData.get('tenantTown') || null,
         autoBillFwd: formData.get('autoBillFwd') === 'on',
@@ -150,7 +138,6 @@ export const updateOrAddLocation = withUser(async (user:AuthenticatedUser, locat
         locationName,
         generateTenantCode,
         tenantFirstName,
-        tenantLastName,
         tenantStreet,
         tenantTown,
         autoBillFwd,
@@ -193,7 +180,6 @@ export const updateOrAddLocation = withUser(async (user:AuthenticatedUser, locat
                         name: locationName,
                         generateTenantCode: generateTenantCode || false,
                         tenantFirstName: tenantFirstName || null,
-                        tenantLastName: tenantLastName || null,
                         tenantStreet: tenantStreet || null,
                         tenantTown: tenantTown || null,
                         autoBillFwd: autoBillFwd || false,
@@ -224,7 +210,6 @@ export const updateOrAddLocation = withUser(async (user:AuthenticatedUser, locat
                         name: locationName,
                         generateTenantCode: generateTenantCode || false,
                         tenantFirstName: tenantFirstName || null,
-                        tenantLastName: tenantLastName || null,
                         tenantStreet: tenantStreet || null,
                         tenantTown: tenantTown || null,
                         autoBillFwd: autoBillFwd || false,
@@ -248,7 +233,6 @@ export const updateOrAddLocation = withUser(async (user:AuthenticatedUser, locat
                         name: locationName,
                         generateTenantCode: generateTenantCode || false,
                         tenantFirstName: tenantFirstName || null,
-                        tenantLastName: tenantLastName || null,
                         tenantStreet: tenantStreet || null,
                         tenantTown: tenantTown || null,
                         autoBillFwd: autoBillFwd || false,
@@ -271,7 +255,6 @@ export const updateOrAddLocation = withUser(async (user:AuthenticatedUser, locat
             notes: null,
             generateTenantCode: generateTenantCode || false,
             tenantFirstName: tenantFirstName || null,
-            tenantLastName: tenantLastName || null,
             tenantStreet: tenantStreet || null,
             tenantTown: tenantTown || null,
             autoBillFwd: autoBillFwd || false,
@@ -346,7 +329,6 @@ export const updateOrAddLocation = withUser(async (user:AuthenticatedUser, locat
                         notes: null,
                         generateTenantCode: generateTenantCode || false,
                         tenantFirstName: tenantFirstName || null,
-                        tenantLastName: tenantLastName || null,
                         tenantStreet: tenantStreet || null,
                         tenantTown: tenantTown || null,
                         autoBillFwd: autoBillFwd || false,