Make favicon editable per page in /admin

Same emoji-based inline SVG favicon as before, but the emoji is now
a per-page "favicon" field editable in the header form instead of
hardcoded in the template.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

app.py

@@ -25,6 +25,7 @@ DEFAULT_DATA = {
         "footer_label": "",
         "footer_href": "",
         "profile_image": "",
+        "favicon": "🍯",
         "sections": [],
     }
 }
@@ -121,6 +122,7 @@ def edit_header(page_key):
     page["footer_label"] = request.form.get("footer_label", page.get("footer_label", "")).strip()
     page["footer_href"] = request.form.get("footer_href", page.get("footer_href", "")).strip()
     page["profile_image"] = request.form.get("profile_image", page.get("profile_image", "")).strip()
+    page["favicon"] = request.form.get("favicon", page.get("favicon", "")).strip()
     save_data(data)
     return redirect(url_for("admin_dashboard"))
 
@@ -140,6 +142,7 @@ def add_page():
             "footer_label": "",
             "footer_href": "",
             "profile_image": "",
+            "favicon": "🍯",
             "sections": [],
         }
         save_data(data)

data/links.json

@@ -89,7 +89,8 @@
           }
         ]
       }
-    ]
+    ],
+    "favicon": "🍯"
   },
   "honey": {
     "title": "My Links",
@@ -181,6 +182,7 @@
           }
         ]
       }
-    ]
+    ],
+    "favicon": "🍯"
   }
 }

templates/admin.html

@@ -141,6 +141,10 @@
         <label class="checkbox">Profilbild-URL</label>
         <input type="text" name="profile_image" value="{{ page.profile_image or '' }}" placeholder="https://...">
       </div>
+      <div>
+        <label class="checkbox">Favicon (Emoji)</label>
+        <input type="text" name="favicon" value="{{ page.favicon or '' }}" placeholder="🍯" style="width: 60px;">
+      </div>
       <button type="submit">Header speichern</button>
     </form>
 

templates/page.html

@@ -4,7 +4,7 @@
   <meta charset="UTF-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
   <title>Honey | Links</title>
-  <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>🍯</text></svg>">
+  <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>{{ page.favicon or '🍯' }}</text></svg>">
   <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap" rel="stylesheet"/>
   <link rel="stylesheet" href="{{ url_for('static', filename='styles.css') }}">
 </head>