Feature: Claude Assistent Chat in TaskMate

Neuer Tab "Assistent" mit interaktiver Claude Code Session:
- Chat-UI mit Session-Verwaltung (History, neue/alte Sessions)
- Claude CLI als Child-Process auf dem Host (interaktiv, mit Rueckfragen)
- Streaming-Output per Socket.io
- Nur fuer autorisierte User (Hendrik, Monami)
- 30 Min Inaktivitaets-Timeout
- Task-Uebergabe: Button im Task-Modal sendet Aufgabe an Assistenten
- Chat-Verlauf wird in DB gespeichert

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/js/task-modal.js

@@ -7,6 +7,7 @@
 import store from './store.js';
 import api from './api.js';
 import syncManager from './sync.js';
+import assistantManager from './assistant.js';
 import {
   $, $$, createElement, clearElement, formatDate, formatDateTime,
   formatRelativeTime, formatFileSize, getInitials, hexToRgba,
@@ -72,6 +73,9 @@ class TaskModalManager {
     // Archive button
     $('#btn-archive-task')?.addEventListener('click', () => this.handleArchive());
 
+    // Task to Assistant button
+    $('#btn-task-to-assistant')?.addEventListener('click', () => this.handleTaskToAssistant());
+
     // Restore button
     $('#btn-restore-task')?.addEventListener('click', () => this.handleRestore());
 
@@ -225,6 +229,7 @@ class TaskModalManager {
     const duplicateBtn = $('#btn-duplicate-task');
     const archiveBtn = $('#btn-archive-task');
     const restoreBtn = $('#btn-restore-task');
+    const assistantBtn = $('#btn-task-to-assistant');
     const saveBtn = $('#btn-save-task');
     const cancelBtn = $('#btn-cancel-task');
     const backBtn = $('#btn-back-task');
@@ -233,6 +238,7 @@ class TaskModalManager {
     if (deleteBtn) deleteBtn.classList.toggle('hidden', mode === 'create');
     if (duplicateBtn) duplicateBtn.classList.toggle('hidden', mode === 'create');
     if (archiveBtn) archiveBtn.classList.toggle('hidden', mode === 'create');
+    if (assistantBtn) assistantBtn.classList.toggle('hidden', mode === 'create');
     if (restoreBtn) restoreBtn.classList.add('hidden'); // Always hide initially, shown in loadTaskData if archived
 
     // Right side buttons (create vs edit mode)
@@ -596,6 +602,33 @@ class TaskModalManager {
     }
   }
 
+  handleTaskToAssistant() {
+    if (!this.originalTask) return;
+
+    const task = this.originalTask;
+    const priorityLabels = { low: 'Niedrig', medium: 'Mittel', high: 'Hoch', urgent: 'Dringend' };
+
+    // Build context text
+    let context = `Aufgabe: ${task.title}\n`;
+    if (task.description) context += `Beschreibung: ${task.description}\n`;
+    context += `Prioritaet: ${priorityLabels[task.priority] || task.priority}\n`;
+
+    if (task.labels && task.labels.length > 0) {
+      context += `Labels: ${task.labels.map(l => l.name).join(', ')}\n`;
+    }
+
+    if (this.subtasks && this.subtasks.length > 0) {
+      context += `\nSubtasks:\n`;
+      this.subtasks.forEach(st => {
+        context += `- [${st.completed ? 'x' : ' '}] ${st.title}\n`;
+      });
+    }
+
+    // Close modal and hand over to assistant
+    this.close();
+    assistantManager.handleTaskHandover(context);
+  }
+
   showColumnSelectDialog() {
     const columns = store.get('columns');