feat: Add universal victory celebration modal, chamber item requirements, and fix broom & cauldron displays

app/templates/bottles.html

@@ -1,10 +1,10 @@
 {% extends "base.html" %}
 
-{% block title %}Kammer II: Snapes Flaschenrätsel & Flammenkammer · Hogwarts Escape{% endblock %}
+{% block title %}Kammer VI: Snapes Flaschenrätsel & Flammenkammer · Hogwarts Escape{% endblock %}
 
 {% block content %}
 <div class="parchment-scroll">
-    <h1 class="parchment-title">🧪 Kammer II: Snapes Flaschenrätsel 🔥</h1>
+    <h1 class="parchment-title">🧪 Kammer VI: Snapes Flaschenrätsel & Flammenkammer 🔥</h1>
     
     <div class="riddle-poem">
         "Gefahr liegt vor euch, die Rettung zurück,
@@ -28,6 +28,31 @@
     </div>
 </div>
 
+{% if is_locked and lock_info %}
+<div class="chamber-lock-banner">
+    <div class="chamber-lock-icon">🔒</div>
+    <h2 class="chamber-lock-title">Kammer Versiegelt!</h2>
+    <p class="chamber-lock-desc">
+        {{ lock_info.reason }}
+    </p>
+    <div class="chamber-req-box">
+        <div class="chamber-req-icon">{{ lock_info.item_icon }}</div>
+        <div class="chamber-req-info">
+            <strong>{{ lock_info.item_name }}</strong>
+            <span>Erforderlich aus: {{ lock_info.from_chamber }}</span>
+        </div>
+    </div>
+    <div class="chamber-lock-actions">
+        <a href="{{ lock_info.from_url }}" class="btn-magical">
+            ➔ Zu {{ lock_info.from_chamber }} gehen
+        </a>
+        <a href="?alohomora=1" class="alohomora-link">
+            ✨ Zauberspruch »Alohomora« wirken (Prüfung für Spielleiter / Tester freischalten)
+        </a>
+    </div>
+</div>
+{% endif %}
+
 <div class="flame-chamber-arena">
     <!-- The Two Flaming Portals -->
     <div class="flame-wall-container">