feat: remove optional services step from setup wizard

Services are now installed post-setup from the Store page, so the
wizard step that let users pre-select email/calendar/files is removed.
Reduces wizard from 5 steps to 4 (Step4Services deleted, Step5Review
renamed to Step4Review). Backend drops services_enabled validation,
background install thread, and service_store_manager dependency.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

webui/src/pages/Setup.jsx

@@ -5,7 +5,7 @@ import { setupAPI } from '../services/api';
 
 // ── constants ─────────────────────────────────────────────────────────────────
 
-const TOTAL_STEPS = 5;
+const TOTAL_STEPS = 4;
 
 const CELL_NAME_RE = /^[a-z][a-z0-9-]{1,30}$/;
 const DOMAIN_RE = /^[a-z0-9]([a-z0-9-]*[a-z0-9])?(\.[a-z0-9]([a-z0-9-]*[a-z0-9])?)+$/i;
@@ -38,19 +38,6 @@ const DOMAIN_OPTIONS = [
   },
 ];
 
-const OPTIONAL_SERVICES = [
-  { key: 'email',    label: 'Email',              description: 'Postfix + Dovecot IMAP/SMTP server.' },
-  { key: 'calendar', label: 'Calendar & Contacts', description: 'CalDAV/CardDAV via Radicale.' },
-  { key: 'files',    label: 'Files (WebDAV)',       description: 'WebDAV file storage accessible from any device.' },
-  { key: 'webmail',  label: 'Webmail UI',           description: 'Browser-based email client (Roundcube).' },
-];
-
-const ALWAYS_ON_SERVICES = [
-  { key: 'vpn', label: 'VPN (WireGuard)' },
-  { key: 'dns', label: 'DNS (CoreDNS)' },
-  { key: 'api', label: 'API (cell-api)' },
-];
-
 // ── helpers ───────────────────────────────────────────────────────────────────
 
 function getAllTimezones() {
@@ -513,48 +500,7 @@ function Step3Timezone({ value, onChange, onNext, onBack }) {
   );
 }
 
-// ── step 4: services ──────────────────────────────────────────────────────────
-
-function Step4Services({ selected, onChange, onNext, onBack }) {
-  const toggle = key => onChange(selected.includes(key) ? selected.filter(k => k !== key) : [...selected, key]);
-
-  return (
-    <div>
-      <StepHeader step={4} title="Optional services" description="Choose which services to enable. You can change this later in Settings." />
-      <div className="space-y-2 mb-6">
-        {OPTIONAL_SERVICES.map(svc => {
-          const checked = selected.includes(svc.key);
-          return (
-            <label key={svc.key} className={`flex items-start gap-3 p-3 rounded-lg border cursor-pointer transition-colors ${
-              checked ? 'border-blue-500 bg-blue-950/40' : 'border-gray-700 hover:border-gray-500'
-            }`}>
-              <input type="checkbox" className="mt-0.5 accent-blue-500" checked={checked} onChange={() => toggle(svc.key)} />
-              <div>
-                <div className="text-sm font-medium text-white">{svc.label}</div>
-                <div className="text-xs text-gray-400 mt-0.5">{svc.description}</div>
-              </div>
-            </label>
-          );
-        })}
-      </div>
-      <div>
-        <p className="text-xs font-medium text-gray-500 uppercase tracking-wider mb-2">Always enabled</p>
-        <div className="space-y-1.5">
-          {ALWAYS_ON_SERVICES.map(svc => (
-            <div key={svc.key} className="flex items-center gap-3 p-3 rounded-lg border border-gray-800 bg-gray-900/40 opacity-60">
-              <input type="checkbox" checked readOnly disabled className="mt-0 accent-blue-500" />
-              <span className="text-sm text-gray-400">{svc.label}</span>
-              <span className="ml-auto text-xs text-gray-600">always enabled</span>
-            </div>
-          ))}
-        </div>
-      </div>
-      <NavButtons onBack={onBack} onNext={onNext} />
-    </div>
-  );
-}
-
-// ── step 5: review ────────────────────────────────────────────────────────────
+// ── step 4: review ────────────────────────────────────────────────────────────
 
 function ReviewRow({ label, value }) {
   return (
@@ -565,23 +511,19 @@ function ReviewRow({ label, value }) {
   );
 }
 
-function Step5Review({ domainType, domainName, services, timezone, onBack, onSubmit, submitting, submitError }) {
+function Step4Review({ domainType, domainName, timezone, onBack, onSubmit, submitting, submitError }) {
   const domainDisplay = domainName || 'LAN only (no public domain)';
   const providerLabel = DOMAIN_OPTIONS.find(o => o.value === domainType)?.label || domainType;
-  const serviceLabels = services.length
-    ? services.map(k => OPTIONAL_SERVICES.find(s => s.key === k)?.label || k).join(', ')
-    : 'None selected';
 
   return (
     <div>
-      <StepHeader step={5} title="Review and finish"
+      <StepHeader step={4} title="Review and finish"
         description="Check your choices. You can go back to change anything." />
       <div className="bg-gray-800/50 border border-gray-700 rounded-lg px-4 py-1 mb-2">
         <ReviewRow label="Admin password" value="••••••••••••" />
         <ReviewRow label="Domain" value={domainDisplay} />
         <ReviewRow label="Provider" value={providerLabel} />
         <ReviewRow label="Timezone" value={timezone} />
-        <ReviewRow label="Optional services" value={serviceLabels} />
       </div>
       {submitError && (
         <div className="mt-4 p-3 bg-red-950/50 border border-red-700 rounded-lg flex items-start gap-2">
@@ -614,7 +556,6 @@ export default function Setup() {
   const [timezone, setTimezone] = useState(
     (() => { try { return Intl.DateTimeFormat().resolvedOptions().timeZone || 'UTC'; } catch { return 'UTC'; } })()
   );
-  const [services, setServices] = useState([]);
 
   const [submitting, setSubmitting]   = useState(false);
   const [submitError, setSubmitError] = useState('');
@@ -648,13 +589,12 @@ export default function Setup() {
     const ddnsProvider = domainType === 'lan' ? 'none' : domainType === 'http01' ? 'none' : domainType;
 
     const payload = {
-      cell_name:        cellName,
+      cell_name:     cellName,
       password,
-      domain_mode:      domainType,
-      domain_name:      domainName,
+      domain_mode:   domainType,
+      domain_name:   domainName,
       timezone,
-      services_enabled: services,
-      ddns_provider:    ddnsProvider,
+      ddns_provider: ddnsProvider,
       ...(domainType === 'cloudflare' && { cloudflare_api_token: cloudflareToken }),
       ...(domainType === 'duckdns'    && { duckdns_token: duckdnsToken }),
     };
@@ -720,12 +660,9 @@ export default function Setup() {
           <Step3Timezone value={timezone} onChange={setTimezone} onNext={goNext} onBack={goBack} />
         )}
         {step === 4 && (
-          <Step4Services selected={services} onChange={setServices} onNext={goNext} onBack={goBack} />
-        )}
-        {step === 5 && (
-          <Step5Review
+          <Step4Review
             domainType={domainType} domainName={domainName}
-            services={services} timezone={timezone}
+            timezone={timezone}
             onBack={goBack} onSubmit={handleSubmit}
             submitting={submitting} submitError={submitError}
           />