profile name change

src/api/tenants.ts

@@ -9,6 +9,21 @@ export interface CreateTenantRequest {
   companyname: string;
   primarycontact: string;
   primaryemail: string;
+  /**
+   * Who runs the shop — `tenants.firstname`.
+   *
+   * Asked here because here is the only moment it can be asked. The primary
+   * branch and the merchant's own admin login are both created inside
+   * `CreateTenantUser`'s transaction, and the login is copied from the tenant
+   * row — so a name given now names the business AND the account that will
+   * sign in. Left out, both are blank, which is what every merchant on the
+   * platform currently has: the store profile prints "—" for Store admin and
+   * the account carries no person's name at all.
+   *
+   * One field, not two: `tenants` has a `firstname` column and no
+   * `lastname`, so this is the whole name.
+   */
+  firstname?: string;
   locationname: string;
   categoryid: number;
   subcategoryid?: number;
@@ -200,6 +215,9 @@ function toTenantBody(form: CreateTenantRequest): Record<string, unknown> {
     companyname: form.companyname,
     primaryemail: form.primaryemail,
     primarycontact: form.primarycontact,
+    // Written to `tenants.firstname` and copied onto the admin login the same
+    // transaction creates — see the note on the field.
+    firstname: (form.firstname ?? '').trim(),
     categoryid: form.categoryid,
     subcategoryid: form.subcategoryid ?? 0,
     address: form.address,