diff --git a/backend/routes/friends.py b/backend/routes/friends.py
index 724c2b4..8db5701 100644
--- a/backend/routes/friends.py
+++ b/backend/routes/friends.py
@@ -224,6 +224,7 @@ async def get_activity(user=Depends(get_current_user)):
         diary_rows = conn.execute(f"""
             SELECT
                 'diary'          AS type,
+                dg.id            AS entry_id,
                 u.id             AS user_id,
                 u.name           AS user_name,
                 u.avatar_url,
@@ -261,6 +262,7 @@ async def get_activity(user=Depends(get_current_user)):
         walk_rows = conn.execute(f"""
             SELECT
                 'walk'           AS type,
+                w.id             AS entry_id,
                 u.id             AS user_id,
                 u.name           AS user_name,
                 u.avatar_url,
@@ -310,6 +312,7 @@ async def get_activity(user=Depends(get_current_user)):
         t = d["type"]
         items.append({
             "type":       t,
+            "entry_id":   d.get("entry_id"),
             "user_id":    d["user_id"],
             "user_name":  d["user_name"],
             "avatar_url": d.get("avatar_url"),
diff --git a/backend/static/js/app.js b/backend/static/js/app.js
index 14435df..031ce33 100644
--- a/backend/static/js/app.js
+++ b/backend/static/js/app.js
@@ -3,7 +3,7 @@
    Router, State-Management, Navigation, Initialisierung.
    ============================================================ */
 
-const APP_VER = '219'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
+const APP_VER = '220'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
 
 const App = (() => {
 
diff --git a/backend/static/js/pages/diary.js b/backend/static/js/pages/diary.js
index 0bc4300..5209648 100644
--- a/backend/static/js/pages/diary.js
+++ b/backend/static/js/pages/diary.js
@@ -1187,6 +1187,6 @@ window.Page_diary = (() => {
       .trim();
   }
 
-  return { init, refresh, openNew, onDogChange };
+  return { init, refresh, openNew, onDogChange, openDetail: _openDetail };
 
 })();
diff --git a/backend/static/js/pages/friends.js b/backend/static/js/pages/friends.js
index f233217..da6a40b 100644
--- a/backend/static/js/pages/friends.js
+++ b/backend/static/js/pages/friends.js
@@ -249,8 +249,17 @@ window.Page_friends = (() => {
 
     el.querySelectorAll('.fr-activity-item[data-nav]').forEach(btn => {
       btn.addEventListener('click', () => {
-        const page = btn.dataset.nav;
-        if (page) App.navigate(page);
+        const page    = btn.dataset.nav;
+        const entryId = btn.dataset.entryId ? parseInt(btn.dataset.entryId) : null;
+        const type    = btn.dataset.type;
+        if (!page) return;
+        if (entryId && type === 'diary') {
+          App.callModule('diary', 'openDetail', entryId);
+        } else if (entryId && type === 'walk') {
+          App.callModule('walks', 'openDetail', entryId);
+        } else {
+          App.navigate(page);
+        }
       });
     });
   }
@@ -283,7 +292,9 @@ window.Page_friends = (() => {
     const tag = page ? `button type="button"` : `div`;
     return `
       <${tag} class="fr-activity-item${page ? ' fr-activity-item--link' : ''}"
-              ${page ? `data-nav="${page}"` : ''}>
+              ${page ? `data-nav="${page}"` : ''}
+              ${item.entry_id ? `data-entry-id="${item.entry_id}"` : ''}
+              data-type="${item.type}">
         <div class="fr-activity-avatar-wrap">
           ${avatar}
           <div class="fr-activity-icon-badge">
diff --git a/backend/static/sw.js b/backend/static/sw.js
index 2958cba..38c9efe 100644
--- a/backend/static/sw.js
+++ b/backend/static/sw.js
@@ -3,7 +3,7 @@
    Offline-Cache + Push Notifications + Tile-Cache
    ============================================================ */
 
-const CACHE_VERSION = 'by-v241';
+const CACHE_VERSION = 'by-v242';
 const CACHE_STATIC  = `${CACHE_VERSION}-static`;
 const CACHE_TILES   = 'ban-yaro-tiles-v1';  // bleibt über SW-Updates erhalten