refactor(onboarding): restructure onboarding routes and components

- Removed obsolete onboarding routes: complete, create-complex, index, verify-email, and verify.
- Introduced new setup stepper page for onboarding process.
- Created a multi-step setup component to handle complex creation with validation.
- Added new schemas for complex creation and plan features.
- Implemented detailed steps for complex name, location, plan selection, and court setup.
- Enhanced error handling and user feedback during the onboarding process.

apps/frontend/src/features/onboard/components/steps/complex-name-step.tsx

@@ -0,0 +1,32 @@
+import { Field, FieldError, FieldLabel } from '@/components/ui/field';
+import { Input } from '@/components/ui/input';
+import type { UseFormReturn } from 'react-hook-form';
+
+type ComplexNameStepProps = {
+  form: UseFormReturn<any>;
+};
+
+export function ComplexNameStep({ form }: ComplexNameStepProps) {
+  const errors = form.formState.errors;
+
+  return (
+    <div className="space-y-4">
+      <div>
+        <h2 className="text-lg font-semibold">Nombre del complejo</h2>
+        <p className="text-sm text-muted-foreground">¿Cómo se va a llamar tu complejo?</p>
+      </div>
+
+      <Field data-invalid={Boolean(errors.complexName)}>
+        <FieldLabel htmlFor="complex-name">Nombre del complejo</FieldLabel>
+        <Input
+          id="complex-name"
+          type="text"
+          placeholder="Ej: Complejo Las Palmeras"
+          aria-invalid={Boolean(errors.complexName)}
+          {...form.register('complexName')}
+        />
+        <FieldError errors={[errors.complexName]} />
+      </Field>
+    </div>
+  );
+}