feat: Add Admin Group Hub page and update navigation structure for improved admin management

frontend/src/App.jsx

@@ -37,6 +37,7 @@ import AdminFocusAreasPage from './pages/AdminFocusAreasPage'
 import AdminHomePage from './pages/AdminHomePage'
 import AdminUsersPage from './pages/AdminUsersPage'
 import AdminSystemPage from './pages/AdminSystemPage'
+import AdminGroupHubPage from './pages/AdminGroupHubPage'
 import RequireAdmin from './layouts/RequireAdmin'
 import AdminShell from './layouts/AdminShell'
 import SubscriptionPage from './pages/SubscriptionPage'
@@ -227,6 +228,7 @@ function AppShell() {
           <Route element={<RequireAdmin />}>
             <Route path="admin" element={<AdminShell />}>
               <Route index element={<AdminHomePage />} />
+              <Route path="g/:groupId" element={<AdminGroupHubPage />} />
               <Route path="users" element={<AdminUsersPage />} />
               <Route path="system" element={<AdminSystemPage />} />
               <Route path="tier-limits" element={<AdminTierLimitsPage/>}/>

frontend/src/app.css

@@ -304,6 +304,11 @@ body { font-family: var(--font); background: var(--bg); color: var(--text1); -we
   opacity: 1;
 }
 
+a.analysis-split__nav-item {
+  text-decoration: none;
+  box-sizing: border-box;
+}
+
 .analysis-split__main {
   min-width: 0;
 }
@@ -474,90 +479,11 @@ body { font-family: var(--font); background: var(--bg); color: var(--text1); -we
   }
 }
 
-/* Admin: gruppierte Sub-Navigation (Mobil = Chips pro Gruppe, Desktop = linke Spalte) */
+/* Admin: Split-Layout wie .analysis-split (nur Gruppen in der Nav) */
 .admin-shell {
   width: 100%;
 }
 
-.admin-shell__layout {
-  display: flex;
-  flex-direction: column;
-  gap: 16px;
-}
-
-.admin-shell__nav-groups {
-  display: flex;
-  flex-direction: column;
-  gap: 14px;
-}
-
-.admin-shell__nav-group {
-  display: flex;
-  flex-direction: column;
-  gap: 6px;
-}
-
-.admin-shell__group-title {
-  font-size: 11px;
-  font-weight: 700;
-  letter-spacing: 0.04em;
-  text-transform: uppercase;
-  color: var(--text3);
-  padding: 0 2px;
-}
-
-.admin-shell__group-chips {
-  display: flex;
-  flex-direction: row;
-  flex-wrap: nowrap;
-  gap: 6px;
-  overflow-x: auto;
-  padding-bottom: 4px;
-  -ms-overflow-style: none;
-  scrollbar-width: none;
-}
-
-.admin-shell__group-chips::-webkit-scrollbar {
-  display: none;
-}
-
-.admin-shell__nav-item {
-  flex-shrink: 0;
-  display: inline-flex;
-  align-items: center;
-  justify-content: center;
-  padding: 7px 12px;
-  border-radius: 20px;
-  border: 1.5px solid var(--border2);
-  background: var(--surface);
-  color: var(--text2);
-  font-family: var(--font);
-  font-size: 13px;
-  font-weight: 500;
-  text-decoration: none;
-  white-space: nowrap;
-  box-sizing: border-box;
-}
-
-.admin-shell__nav-item:hover {
-  border-color: var(--accent);
-  color: var(--text1);
-}
-
-.admin-shell__nav-item--active {
-  border-color: var(--accent);
-  background: var(--accent);
-  color: white;
-}
-
-.admin-shell__nav-item--active:hover {
-  color: white;
-}
-
-.admin-shell__main {
-  min-width: 0;
-}
-
 .admin-page {
   width: 100%;
 }
@@ -568,40 +494,6 @@ body { font-family: var(--font); background: var(--bg); color: var(--text1); -we
     margin-left: auto;
     margin-right: auto;
   }
-
-  .admin-shell__layout {
-    flex-direction: row;
-    align-items: flex-start;
-    gap: 24px;
-  }
-
-  .admin-shell__nav-wrap {
-    flex: 0 0 260px;
-    max-width: 280px;
-    position: sticky;
-    top: 16px;
-    align-self: flex-start;
-  }
-
-  .admin-shell__group-chips {
-    flex-direction: column;
-    overflow-x: visible;
-    overflow-y: visible;
-    padding-bottom: 0;
-    gap: 6px;
-  }
-
-  .admin-shell__nav-item {
-    width: 100%;
-    justify-content: flex-start;
-    border-radius: 10px;
-    white-space: normal;
-    padding: 9px 12px;
-  }
-
-  .admin-shell__main {
-    flex: 1;
-  }
 }
 
 .muted { color: var(--text3); font-size: 13px; }

frontend/src/config/adminNav.js

@@ -1,61 +1,154 @@
 /**
- * Gruppierte Admin-Navigation (Shell: Chips mobil, Seitenleiste Desktop).
+ * Admin: Nur Gruppen in der Shell-Navigation; konkrete Seiten wählt man auf der Hub-Seite (/admin/g/:id).
- * @typedef {{ to: string, label: string, end?: boolean }} AdminNavItem
+ * @typedef {{ to: string, label: string, description?: string }} AdminGroupItem
- * @typedef {{ id: string, label: string, items: AdminNavItem[] }} AdminNavGroup
+ * @typedef {{ id: string, label: string, description: string, items: AdminGroupItem[] }} AdminGroup
  */
 
-/** @type {AdminNavGroup[]} */
+/** @type {AdminGroup[]} */
-export const ADMIN_NAV_GROUPS = [
+export const ADMIN_GROUPS = [
-  {
-    id: 'overview',
-    label: 'Übersicht',
-    items: [{ to: '/admin', label: 'Start', end: true }],
-  },
   {
     id: 'users',
     label: 'Benutzerverwaltung',
-    items: [{ to: '/admin/users', label: 'Profile & Rollen' }],
+    description: 'Profile anlegen, Rollen setzen und Recovery-E-Mails pflegen.',
+    items: [
+      {
+        to: '/admin/users',
+        label: 'Profile & Rollen',
+        description: 'Neue Profile, Admin-Rolle, PIN und E-Mail pro Nutzer.',
+      },
+    ],
   },
   {
     id: 'features',
     label: 'Features',
+    description: 'Feature-Registry, Kontingente und individuelle Overrides.',
     items: [
-      { to: '/admin/features', label: 'Feature-Registry' },
+      {
-      { to: '/admin/tier-limits', label: 'Tier-Limits' },
+        to: '/admin/features',
-      { to: '/admin/user-restrictions', label: 'User-Overrides' },
+        label: 'Feature-Registry',
+        description: 'Features definieren und Kategorien zuordnen.',
+      },
+      {
+        to: '/admin/tier-limits',
+        label: 'Tier-Limits',
+        description: 'Limit-Matrix pro Tier bearbeiten.',
+      },
+      {
+        to: '/admin/user-restrictions',
+        label: 'User-Overrides',
+        description: 'Individuelle Feature-Limits setzen.',
+      },
     ],
   },
   {
     id: 'subscription',
     label: 'Subscription',
+    description: 'Tiers und Gutscheine für das Freemium-System.',
     items: [
-      { to: '/admin/tiers', label: 'Tiers' },
+      { to: '/admin/tiers', label: 'Tiers', description: 'Abo-Stufen und Zuordnung.' },
-      { to: '/admin/coupons', label: 'Coupons' },
+      { to: '/admin/coupons', label: 'Coupons', description: 'Gutscheincodes verwalten.' },
     ],
   },
   {
     id: 'training',
     label: 'Trainingstypen',
+    description: 'Trainingstypen, Mappings und Trainings-Profile.',
     items: [
-      { to: '/admin/training-types', label: 'Trainingstypen' },
+      {
-      { to: '/admin/activity-mappings', label: 'Activity-Mappings' },
+        to: '/admin/training-types',
-      { to: '/admin/training-profiles', label: 'Trainings-Profile' },
+        label: 'Trainingstypen',
+        description: 'Kategorien und Typen verwalten.',
+      },
+      {
+        to: '/admin/activity-mappings',
+        label: 'Activity-Mappings',
+        description: 'Lernendes Zuordnungssystem (Sprache / Apple Health).',
+      },
+      {
+        to: '/admin/training-profiles',
+        label: 'Trainings-Profile',
+        description: 'Training-Type-Profile (#15).',
+      },
     ],
   },
   {
     id: 'goals',
     label: 'Ziele & Fokus',
+    description: 'Ziel-Typen und Focus Areas.',
     items: [
-      { to: '/admin/goal-types', label: 'Ziel-Typen' },
+      {
-      { to: '/admin/focus-areas', label: 'Focus Areas' },
+        to: '/admin/goal-types',
+        label: 'Ziel-Typen',
+        description: 'Custom Goal Types mit oder ohne Datenquelle.',
+      },
+      {
+        to: '/admin/focus-areas',
+        label: 'Focus Areas',
+        description: 'Dynamische Fokusbereiche und Kategorien.',
+      },
+    ],
+  },
+  {
+    id: 'prompts',
+    label: 'KI-Prompts',
+    description: 'Pipeline- und Basis-Prompts für die KI-Analyse.',
+    items: [
+      {
+        to: '/admin/prompts',
+        label: 'KI-Prompts verwalten',
+        description: 'Prompts bearbeiten, Stages, Test & Export.',
+      },
     ],
   },
   {
     id: 'system',
     label: 'Basiseinstellungen',
+    description: 'System-E-Mail und Platzhalter-Metadaten.',
     items: [
-      { to: '/admin/prompts', label: 'KI-Prompts' },
+      {
-      { to: '/admin/system', label: 'SMTP & Metadaten-Export' },
+        to: '/admin/system',
+        label: 'SMTP & Metadaten-Export',
+        description: 'SMTP-Status, Test-Mail und Placeholder-Katalog (JSON/ZIP).',
+      },
     ],
   },
 ]
+
+export function adminGroupHubPath(groupId) {
+  return `/admin/g/${groupId}`
+}
+
+/**
+ * Shell-Navigation: Übersicht + eine Zeile/Spalte pro Gruppe (ohne Einzelseiten).
+ * @typedef {{ id: string, label: string, to: string, end?: boolean }} AdminShellNavEntry
+ * @returns {AdminShellNavEntry[]}
+ */
+export function getAdminShellNavEntries() {
+  return [
+    { id: 'overview', label: 'Übersicht', to: '/admin', end: true },
+    ...ADMIN_GROUPS.map((g) => ({
+      id: g.id,
+      label: g.label,
+      to: adminGroupHubPath(g.id),
+      end: false,
+    })),
+  ]
+}
+
+/** Aktiver Shell-Eintrag inkl. Leaf-Routen der Gruppe (z. B. /admin/features → Gruppe „Features“). */
+export function adminShellEntryIsActive(pathname, entry) {
+  if (entry.id === 'overview') {
+    return pathname === '/admin'
+  }
+  const group = ADMIN_GROUPS.find((x) => x.id === entry.id)
+  if (!group) return false
+  if (pathname === adminGroupHubPath(group.id)) return true
+  return group.items.some((it) => pathname === it.to)
+}
+
+/** Anzahl Unterseiten für Chip-Badge (wie KI-Analyse). */
+export function adminShellEntryItemCount(entry) {
+  if (entry.id === 'overview') return 0
+  const g = ADMIN_GROUPS.find((x) => x.id === entry.id)
+  return g ? g.items.length : 0
+}

frontend/src/layouts/AdminShell.jsx

@@ -1,35 +1,46 @@
-import { Outlet, NavLink } from 'react-router-dom'
+import { Outlet, NavLink, useLocation } from 'react-router-dom'
-import { ADMIN_NAV_GROUPS } from '../config/adminNav'
+import {
+  getAdminShellNavEntries,
+  adminShellEntryIsActive,
+  adminShellEntryItemCount,
+} from '../config/adminNav'
 
+/**
+ * Wie KI-Analyse: nur Gruppen-Chips (mobil) bzw. Seitenleiste (desktop);
+ * konkrete Admin-Seiten über Hub unter /admin/g/:groupId.
+ */
 export default function AdminShell() {
+  const loc = useLocation()
+  const entries = getAdminShellNavEntries()
+
   return (
     <div className="admin-shell">
-      <div className="admin-shell__layout">
+      <div className="analysis-split">
-        <nav className="admin-shell__nav-wrap" aria-label="Adminbereich">
+        <div className="analysis-split__nav-wrap">
-          <div className="admin-shell__nav-groups">
+          <nav className="analysis-split__nav" aria-label="Adminbereich">
-            {ADMIN_NAV_GROUPS.map((group) => (
+            {entries.map((entry) => {
-              <div key={group.id} className="admin-shell__nav-group">
+              const active = adminShellEntryIsActive(loc.pathname, entry)
-                <div className="admin-shell__group-title">{group.label}</div>
+              const count = adminShellEntryItemCount(entry)
-                <div className="admin-shell__group-chips">
+              return (
-                  {group.items.map((item) => (
+                <NavLink
-                    <NavLink
+                  key={entry.id}
-                      key={`${group.id}-${item.to}`}
+                  to={entry.to}
-                      to={item.to}
+                  end={!!entry.end}
-                      end={!!item.end}
+                  className={() =>
-                      className={({ isActive }) =>
+                    'analysis-split__nav-item' +
-                        'admin-shell__nav-item' +
+                    (active ? ' analysis-split__nav-item--active' : '')
-                        (isActive ? ' admin-shell__nav-item--active' : '')
+                  }
-                      }
+                >
-                    >
+                  {entry.label}
-                      {item.label}
+                  {count > 0 && (
-                    </NavLink>
+                    <span className="analysis-split__nav-cat-count">({count})</span>
-                  ))}
+                  )}
-                </div>
+                </NavLink>
-              </div>
+              )
-            ))}
+            })}
-          </div>
+          </nav>
-        </nav>
+        </div>
-        <div className="admin-shell__main">
+        <div className="analysis-split__main">
           <div className="admin-page">
             <Outlet />
           </div>

frontend/src/pages/AdminGroupHubPage.jsx

@@ -0,0 +1,57 @@
+import { useParams, Navigate, Link } from 'react-router-dom'
+import { ADMIN_GROUPS } from '../config/adminNav'
+
+export default function AdminGroupHubPage() {
+  const { groupId } = useParams()
+  const group = ADMIN_GROUPS.find((g) => g.id === groupId)
+
+  if (!group) {
+    return <Navigate to="/admin" replace />
+  }
+
+  return (
+    <div>
+      <h2 className="page-title" style={{ margin: '0 0 8px', fontSize: 18 }}>
+        {group.label}
+      </h2>
+      <p style={{ fontSize: 13, color: 'var(--text2)', marginBottom: 18, lineHeight: 1.6 }}>
+        {group.description}
+      </p>
+      <p style={{ fontSize: 12, fontWeight: 600, color: 'var(--text3)', marginBottom: 12 }}>
+        Bereich wählen · {group.items.length}{' '}
+        {group.items.length === 1 ? 'Seite' : 'Seiten'}
+      </p>
+      <div style={{ display: 'flex', flexDirection: 'column', gap: 12 }}>
+        {group.items.map((item) => (
+          <Link
+            key={item.to}
+            to={item.to}
+            className="card section-gap"
+            style={{
+              margin: 0,
+              textDecoration: 'none',
+              color: 'inherit',
+              borderColor: 'var(--accent)',
+              borderWidth: 2,
+              display: 'block',
+            }}
+          >
+            <div style={{ fontWeight: 700, fontSize: 15, color: 'var(--accent)', marginBottom: 4 }}>
+              {item.label}
+            </div>
+            {item.description && (
+              <div style={{ fontSize: 12, color: 'var(--text2)', lineHeight: 1.5 }}>
+                {item.description}
+              </div>
+            )}
+          </Link>
+        ))}
+      </div>
+      <div style={{ marginTop: 20 }}>
+        <Link to="/admin" className="btn btn-secondary" style={{ fontSize: 13 }}>
+          ← Zur Übersicht
+        </Link>
+      </div>
+    </div>
+  )
+}

frontend/src/pages/AdminHomePage.jsx

@@ -1,38 +1,39 @@
 import { Link } from 'react-router-dom'
 import { Shield } from 'lucide-react'
-import { ADMIN_NAV_GROUPS } from '../config/adminNav'
+import { ADMIN_GROUPS, adminGroupHubPath } from '../config/adminNav'
-
-const LINK_GROUPS = ADMIN_NAV_GROUPS.filter((g) => g.id !== 'overview')
 
 export default function AdminHomePage() {
   return (
     <div>
-      <div style={{display:'flex',alignItems:'center',gap:8,marginBottom:12}}>
+      <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 12 }}>
-        <Shield size={20} color="var(--accent)"/>
+        <Shield size={20} color="var(--accent)" />
-        <h1 style={{fontSize:18,fontWeight:700,margin:0}}>Adminbereich</h1>
+        <h1 className="page-title" style={{ margin: 0 }}>Adminbereich</h1>
       </div>
-      <p style={{fontSize:13,color:'var(--text2)',marginBottom:20,lineHeight:1.6}}>
+      <p style={{ fontSize: 13, color: 'var(--text2)', marginBottom: 18, lineHeight: 1.6 }}>
-        Wähle links (Desktop) oder oben (Mobil) einen Bereich – oder springe direkt zu einer Gruppe:
+        Wähle links oder oben eine <strong>Gruppe</strong>. Die einzelnen Verwaltungsseiten erreichst du auf der
+        folgenden Gruppenseite – wie bei der KI-Analyse (Kategorie → Detail).
       </p>
-      <div style={{display:'flex',flexDirection:'column',gap:16}}>
+      <div style={{ display: 'flex', flexDirection: 'column', gap: 12 }}>
-        {LINK_GROUPS.map((group) => (
+        {ADMIN_GROUPS.map((group) => (
-          <div key={group.id} className="card section-gap" style={{margin:0}}>
+          <Link
-            <div style={{fontWeight:700,fontSize:14,marginBottom:10,color:'var(--text1)'}}>
+            key={group.id}
-              {group.label}
+            to={adminGroupHubPath(group.id)}
+            className="card section-gap"
+            style={{
+              margin: 0,
+              textDecoration: 'none',
+              color: 'inherit',
+              display: 'block',
+            }}
+          >
+            <div style={{ fontWeight: 700, fontSize: 15, marginBottom: 6 }}>{group.label}</div>
+            <div style={{ fontSize: 12, color: 'var(--text2)', lineHeight: 1.5 }}>
+              {group.description}
             </div>
-            <div style={{display:'flex',flexDirection:'column',gap:8}}>
+            <div style={{ fontSize: 11, color: 'var(--text3)', marginTop: 8 }}>
-              {group.items.map((item) => (
+              {group.items.length} {group.items.length === 1 ? 'Bereich' : 'Bereiche'}
-                <Link
-                  key={item.to}
-                  to={item.to}
-                  className="btn btn-secondary btn-full"
-                  style={{ textAlign: 'center', textDecoration: 'none', boxSizing: 'border-box' }}
-                >
-                  {item.label}
-                </Link>
-              ))}
             </div>
-          </div>
+          </Link>
         ))}
       </div>
     </div>

frontend/src/pages/Analysis.jsx

@@ -632,7 +632,7 @@ export default function Analysis() {
             <div className="empty-state">
               <p>Keine aktiven Pipeline-Prompts verfügbar.</p>
               <p style={{fontSize:12,color:'var(--text3)',marginTop:8}}>
-                Erstelle Pipeline-Prompts im Admin-Bereich (Einstellungen → Admin → KI-Prompts).
+                Erstelle Pipeline-Prompts im Admin-Bereich unter Admin → KI-Prompts.
               </p>
             </div>
           )}