Aufgeräumt.

main.py

@@ -1,32 +1,36 @@
 from qgis.utils import plugins
-from qgis.PyQt.QtGui import QIcon
-from sn_basis.ui.navigation import Navigation
 from sn_basis.ui.dockmanager import DockManager
 from .ui.dockwidget import DockWidget
 
+
 class Plan41:
     def __init__(self, iface):
         self.iface = iface
-        self.ui = None
+        self.action = None
         self.dockwidget = None
 
+        # Namen automatisch aus Klassennamen ableiten
+        self.plugin_name = self.__class__.__name__
+        self.dock_name = f"sn_dock_{self.plugin_name.lower()}"
+
     def initGui(self):
-        # Basis-Plugin muss geladen sein!
         basis = plugins.get("sn_basis")
         if basis and basis.ui:
-            self.action = basis.ui.add_action("Plan41", self.run, tooltip="Öffnet Plan41", priority=20)
+            self.action = basis.ui.add_action(
+                self.plugin_name,
+                self.run,
+                tooltip=f"Öffnet {self.plugin_name}",
+                priority=20
+            )
             basis.ui.finalize_menu_and_toolbar()
 
     def unload(self):
-        if self.ui:
-            self.ui.remove_all()
         if self.dockwidget:
             self.iface.removeDockWidget(self.dockwidget)
             self.dockwidget.deleteLater()
             self.dockwidget = None
 
     def run(self):
-        from sn_plan41.ui.dockwidget import DockWidget
-        self.dockwidget = DockWidget(self.iface.mainWindow())
-        self.dockwidget.setObjectName("sn_dock_plan41")
+        self.dockwidget = DockWidget(self.iface.mainWindow(), subtitle=self.plugin_name)
+        self.dockwidget.setObjectName(self.dock_name)
         DockManager.show(self.dockwidget)