feat(onboarding/phase-5): wire real forms into the setup wizard

Replaces the Phase 2 StepPlaceholder with six dedicated wizard step
components, each wrapping the corresponding Phase 3/4 form. The parent
setup-wizard.tsx is now a thin dispatcher that owns shell state +
markSetupStepComplete wiring; each step owns its own data load, form
state, validation, and save action.

- src/components/setup/wizard-step-types.ts — shared
  WizardStepComponentProps shape
- src/components/setup/wizard-step-identity.tsx — minimal brand form
  (hospital name + logo URL) hitting /api/config/theme, links out to
  /branding for full customisation
- src/components/setup/wizard-step-clinics.tsx — ClinicForm + createClinic
  mutation, always presents an empty "add new" form
- src/components/setup/wizard-step-doctors.tsx — DoctorForm with clinic
  dropdown, blocks with an inline warning when no clinics exist yet
- src/components/setup/wizard-step-team.tsx — InviteMemberForm with real
  roles fetched from getRoles, sends invitations via sendInvitations
- src/components/setup/wizard-step-telephony.tsx — loads masked config
  from /api/config/telephony, validates required Ozonetel fields on save
- src/components/setup/wizard-step-ai.tsx — loads AI config, clamps
  temperature 0..2, doesn't auto-advance (last step, admin taps Finish)
- src/pages/setup-wizard.tsx — dispatches to the right step component
  based on activeStep, passes a WizardStepComponentProps bundle

Each step calls onComplete(step) after a successful save, which updates
the shared SetupState so the left-nav badges reflect the new status
immediately.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/components/setup/wizard-step-clinics.tsx

@@ -0,0 +1,68 @@
+import { useState } from 'react';
+import { WizardStep } from './wizard-step';
+import {
+    ClinicForm,
+    clinicFormToGraphQLInput,
+    emptyClinicFormValues,
+    type ClinicFormValues,
+} from '@/components/forms/clinic-form';
+import { apiClient } from '@/lib/api-client';
+import { notify } from '@/lib/toast';
+import type { WizardStepComponentProps } from './wizard-step-types';
+
+// Clinic step — presents a single-clinic form. On save, creates the clinic,
+// marks the step complete, and advances. The admin can come back to
+// /settings/clinics later to add more branches or edit existing ones.
+//
+// We don't pre-load the existing clinic list here because we always want the
+// form to represent "add a new clinic"; the list page is the right surface
+// for editing.
+export const WizardStepClinics = (props: WizardStepComponentProps) => {
+    const [values, setValues] = useState<ClinicFormValues>(emptyClinicFormValues);
+    const [saving, setSaving] = useState(false);
+
+    const handleSave = async () => {
+        if (!values.clinicName.trim()) {
+            notify.error('Clinic name is required');
+            return;
+        }
+        setSaving(true);
+        try {
+            await apiClient.graphql(
+                `mutation CreateClinic($data: ClinicCreateInput!) {
+                    createClinic(data: $data) { id }
+                }`,
+                { data: clinicFormToGraphQLInput(values) },
+            );
+            notify.success('Clinic added', values.clinicName);
+            await props.onComplete('clinics');
+            setValues(emptyClinicFormValues());
+            props.onAdvance();
+        } catch (err) {
+            console.error('[wizard/clinics] save failed', err);
+        } finally {
+            setSaving(false);
+        }
+    };
+
+    return (
+        <WizardStep
+            step="clinics"
+            isCompleted={props.isCompleted}
+            isLast={props.isLast}
+            onPrev={props.onPrev}
+            onNext={props.onNext}
+            onMarkComplete={handleSave}
+            onFinish={props.onFinish}
+            saving={saving}
+        >
+            {props.isCompleted && (
+                <div className="mb-5 rounded-lg border border-secondary bg-secondary p-4 text-xs text-tertiary">
+                    You've already added at least one clinic. Fill the form again to add another, or click{' '}
+                    <b>Next</b> to continue.
+                </div>
+            )}
+            <ClinicForm value={values} onChange={setValues} />
+        </WizardStep>
+    );
+};