start activity from task view

templates/task_detail.html

@@ -10,6 +10,17 @@
                 <span style="background: #f39c12; color: white; padding: 3px 8px; border-radius: 5px;">Template (Auto-Add)</span>
                 {% endif %}
             </p>
+
+            {% if task.activity_id %}
+            <form action="{{ url_for('toggle_timer', activity_id=task.activity_id) }}" method="POST" style="margin-top: 10px;">
+                <input type="hidden" name="note" value="{{ task.name }}">
+                <button type="submit" class="btn" style="background: #27ae60;">
+                    ▶ Start Timer for this Task
+                </button>
+            </form>
+            {% else %}
+            <small style="color: #999;">No activity linked. Edit task to assign one.</small>
+            {% endif %}
         </div>
         <a href="{{ url_for('tasks') }}" class="btn" style="background: #95a5a6;">Back to Tasks</a>
     </div>