feat: Cards, Offene Aufgaben, Feed – Komplettumbau

TeamNetwork: Footer→Arrow, Current Task+Runtime inline
Missions→Offene Aufgaben (TaskCard) mit +New Task, Iris/Bao-Quelle
OperationsFeed: Text-Wrap, 5 Items, Mehr-Button→Tag-Navigation-Modal

frontend/src/views/DashboardView.vue

@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { onMounted, onUnmounted, ref } from 'vue'
-import MissionCard from '../components/dashboard/MissionCard.vue'
+import TaskCard from '../components/dashboard/MissionCard.vue'
 import OperationsFeed from '../components/dashboard/OperationsFeed.vue'
 import TeamNetwork from '../components/dashboard/TeamNetwork.vue'
 import ChatPanel from '../components/dashboard/ChatPanel.vue'
@@ -10,7 +10,7 @@ import { useDashboardData } from '../composables/useDashboardData'
 import type { AgentNodeData } from '../../composables/useDashboardData'
 
 const {
-  agents, missions, feedEntries, chatMessages,
+  agents, openTasks, feedEntries, chatMessages,
   irisBusy, irisFocus, irisRuntime, queue,
   getAgentRuntime, startRuntime, stopRuntime,
   sendChat, removeQueueItem, moveQueueItem, changeQueuePriority,
@@ -48,8 +48,7 @@ function onQueueExecuteNow(id: string): void {
   <div class="dashboard">
     <div class="col-left">
       <section class="missions-section">
-        <h2 class="column-title">Active Missions</h2>
-        <MissionCard v-for="m in missions" :key="m.id" :mission="m" />
+        <TaskCard :tasks="openTasks" @new-task="console.log('New task requested')" />
       </section>
       <OperationsFeed :entries="feedEntries" />
     </div>