feat: Add Team-Members management page

- New /team route to view all team members
- Add/activate/deactivate team members via UI
- Display name, role, email, responsibilities, telegram_id
- Integrated into main navigation
- Self-learning system info displayed

app.py

@@ -2774,6 +2774,69 @@ def journal_clear():
     return redirect(url_for('settings'))
 
 
+@app.route('/team')
+def team():
+    """Zeigt alle Team-Members an."""
+    team_members = get_team_members(active_only=False)
+    return render_template('team.html', team_members=team_members, agents=AGENTS)
+
+
+@app.route('/team/add', methods=['POST'])
+def team_add():
+    """Fügt ein neues Team-Mitglied hinzu."""
+    name = request.form.get('name', '').strip()
+    email = request.form.get('email', '').strip()
+    role = request.form.get('role', '').strip()
+    responsibilities = request.form.get('responsibilities', '').strip()
+    telegram_chat_id = request.form.get('telegram_chat_id', '').strip()
+    
+    if not name or not email or not role or not responsibilities:
+        flash('Alle Felder außer Telegram Chat ID sind Pflichtfelder!', 'danger')
+        return redirect(url_for('team'))
+    
+    # Optional: Telegram Chat ID als Integer
+    chat_id = None
+    if telegram_chat_id:
+        try:
+            chat_id = int(telegram_chat_id)
+        except ValueError:
+            flash('Telegram Chat ID muss eine Zahl sein!', 'warning')
+    
+    success = add_team_member(name, role, responsibilities, email, telegram_id=chat_id)
+    
+    if success:
+        flash(f'✅ Team-Member "{name}" erfolgreich hinzugefügt!', 'success')
+        logger.info(f"[Team] Neues Mitglied hinzugefügt: {name} ({email})")
+    else:
+        flash(f'❌ Team-Member konnte nicht hinzugefügt werden (Email evtl. bereits vorhanden).', 'danger')
+    
+    return redirect(url_for('team'))
+
+
+@app.route('/team/<int:member_id>/activate', methods=['POST'])
+def team_activate(member_id):
+    """Aktiviert ein Team-Mitglied."""
+    con = sqlite3.connect(EMAIL_JOURNAL_DB)
+    con.execute("UPDATE team_members SET active = 1 WHERE id = ?", (member_id,))
+    con.commit()
+    con.close()
+    
+    logger.info(f"[Team] Member #{member_id} aktiviert")
+    return jsonify({'success': True})
+
+
+@app.route('/team/<int:member_id>/deactivate', methods=['POST'])
+def team_deactivate(member_id):
+    """Deaktiviert ein Team-Mitglied."""
+    con = sqlite3.connect(EMAIL_JOURNAL_DB)
+    con.execute("UPDATE team_members SET active = 0 WHERE id = ?", (member_id,))
+    con.commit()
+    con.close()
+    
+    logger.info(f"[Team] Member #{member_id} deaktiviert")
+    return jsonify({'success': True})
+
+
 @app.route('/api/telegram-qr')
 def telegram_qr():
     """Generiert QR-Code für Telegram Bot."""