Add Quiz feature: 10-question quizzes with progressive scoring (max 40 pts)

- Quizzes table with questions, answer options, attempts, answers
- Question types: multiple_choice, exclusion, true_false, free_text
- Progressive scoring: [1,1,2,2,3,3,4,6,8,10] = max 40 per quiz
- Alpine.js countdown timer per question with auto-submit on timeout
- Admin: CRUD for quizzes + per-question editor, JSON export/import
- Child: quiz overview with best scores, question view, result breakdown
- Nav: Quiz link in child header and admin sidebar

resources/views/admin/quizzes/edit.blade.php

@@ -0,0 +1,72 @@
+@extends('layouts.admin')
+@section('title','Quiz bearbeiten')
+@section('content')
+<div class="max-w-3xl">
+  <a href="{{ route('admin.quizzes.index') }}" class="text-sm text-slate-500 hover:text-slate-700 mb-4 inline-block">← Zurück</a>
+
+  {{-- Metadata --}}
+  <div class="bg-white rounded-xl shadow-sm border border-slate-200 p-6 mb-6">
+    <h2 class="font-semibold text-slate-800 mb-5">Quiz-Einstellungen</h2>
+    <form method="POST" action="{{ route('admin.quizzes.update',$quiz) }}" class="space-y-4">
+      @csrf @method('PUT')
+      <div class="grid grid-cols-3 gap-4">
+        <div>
+          <label class="block text-sm font-medium text-slate-700 mb-1">Fach</label>
+          <select name="subject_id" required class="w-full border border-slate-300 rounded-lg px-3 py-2 text-sm focus:ring-2 focus:ring-violet-500 outline-none">
+            @foreach($subjects as $s)<option value="{{ $s->id }}" {{ $s->id==$quiz->subject_id?'selected':'' }}>{{ $s->icon }} {{ $s->name }}</option>@endforeach
+          </select>
+        </div>
+        <div class="col-span-2">
+          <label class="block text-sm font-medium text-slate-700 mb-1">Titel</label>
+          <input name="title" required value="{{ $quiz->title }}" class="w-full border border-slate-300 rounded-lg px-3 py-2 text-sm focus:ring-2 focus:ring-violet-500 outline-none">
+        </div>
+      </div>
+      <div>
+        <label class="block text-sm font-medium text-slate-700 mb-1">Beschreibung</label>
+        <textarea name="description" rows="2" class="w-full border border-slate-300 rounded-lg px-3 py-2 text-sm focus:ring-2 focus:ring-violet-500 outline-none">{{ $quiz->description }}</textarea>
+      </div>
+      <div class="flex items-center gap-2">
+        <input type="checkbox" name="active" id="active" value="1" {{ $quiz->active?'checked':'' }} class="w-4 h-4 text-violet-600">
+        <label for="active" class="text-sm text-slate-700">Quiz aktiv (für Kinder sichtbar)</label>
+      </div>
+      <button type="submit" class="bg-violet-600 hover:bg-violet-700 text-white px-6 py-2 rounded-lg font-medium text-sm">Speichern</button>
+    </form>
+  </div>
+
+  {{-- Questions --}}
+  <div class="flex justify-between items-center mb-3">
+    <h3 class="font-semibold text-slate-700">Fragen
+      <span class="{{ $questions->count() < 10 ? 'text-amber-500' : 'text-green-600' }} font-normal text-sm ml-1">({{ $questions->count() }}/10)</span>
+    </h3>
+    @if($questions->count() < 10)
+    <a href="{{ route('admin.quizzes.questions.create',$quiz) }}" class="bg-violet-600 hover:bg-violet-700 text-white px-4 py-2 rounded-lg text-sm font-medium">+ Frage hinzufügen</a>
+    @else
+    <span class="text-green-600 text-sm font-medium">✅ 10 Fragen vollständig</span>
+    @endif
+  </div>
+
+  @forelse($questions as $i => $q)
+  <div class="bg-white rounded-xl border border-slate-200 px-4 py-3 mb-2 flex items-start justify-between gap-4 hover:bg-slate-50">
+    <div class="flex items-start gap-3 flex-1 min-w-0">
+      <span class="text-slate-400 text-sm pt-0.5 shrink-0">{{ $i+1 }}.</span>
+      <div class="min-w-0">
+        <span class="text-xs bg-slate-100 text-slate-500 px-2 py-0.5 rounded mr-2">{{ $q->typeLabel() }}</span>
+        @if($q->time_limit)<span class="text-xs text-amber-600 mr-2">⏱ {{ $q->time_limit }}s</span>@endif
+        <p class="text-sm text-slate-700 mt-1 line-clamp-2">{{ $q->question_text }}</p>
+      </div>
+    </div>
+    <div class="flex gap-3 text-sm shrink-0">
+      <a href="{{ route('admin.quiz-questions.edit',$q) }}" class="text-violet-600 hover:underline">Bearbeiten</a>
+      <form method="POST" action="{{ route('admin.quiz-questions.destroy',$q) }}" class="inline" onsubmit="return confirm('Frage löschen?')">
+        @csrf @method('DELETE')
+        <button class="text-red-500 hover:underline">Löschen</button>
+      </form>
+    </div>
+  </div>
+  @empty
+  <div class="bg-slate-50 rounded-xl border border-dashed border-slate-300 p-8 text-center text-slate-400 text-sm">
+    Noch keine Fragen. Füge bis zu 10 Fragen hinzu.
+  </div>
+  @endforelse
+</div>
+@endsection