Add admin Pricing page with fixed and custom items

app.py

@@ -801,6 +801,52 @@ def admin_sales():
     return render_template('admin/sales.html', sales=sales, statuses=STATUS_LABELS)
 
 
+@app.route('/admin/pricing', methods=['GET', 'POST'])
+def admin_pricing():
+    """
+    Pricing configuration page.
+    Fixed items: one_song, both_songs, wav_per_song, stems_per_song.
+    Plus up to 5 custom name/price pairs.
+    """
+    redir = require_admin()
+    if redir:
+        return redir
+
+    fixed_keys = ['one_song', 'both_songs', 'wav_per_song', 'stems_per_song']
+    custom_count = 5
+
+    cfg = load_booth_settings()
+    if 'pricing' not in cfg:
+        cfg['pricing'] = {}
+
+    if request.method == 'POST':
+        pricing = {}
+        for key in fixed_keys:
+            pricing[key] = request.form.get(key, '').strip()
+        for i in range(1, custom_count + 1):
+            name = request.form.get(f'custom_name_{i}', '').strip()
+            price = request.form.get(f'custom_price_{i}', '').strip()
+            if name:
+                pricing[f'custom_{i}'] = {'name': name, 'price': price}
+            else:
+                pricing[f'custom_{i}'] = None
+        cfg['pricing'] = pricing
+        save_booth_settings(cfg)
+        flash('Pricing saved.', 'success')
+        return redirect(url_for('admin_pricing'))
+
+    pricing = cfg.get('pricing', {})
+    fixed = {key: pricing.get(key, '') for key in fixed_keys}
+    customs = []
+    for i in range(1, custom_count + 1):
+        entry = pricing.get(f'custom_{i}')
+        customs.append({
+            'name': entry.get('name', '') if isinstance(entry, dict) else '',
+            'price': entry.get('price', '') if isinstance(entry, dict) else ''
+        })
+    return render_template('admin/pricing.html', fixed=fixed, customs=customs)
+
+
 @app.route('/admin/request/<int:rid>', methods=['GET', 'POST'])
 def admin_request(rid):
     """