feat(client): connect PDD task list to SQLite (#9)

client/src/ui_main.py

@@ -28,17 +28,24 @@ from qfluentwidgets import (
 )
 
 from .pdd_ui import PDDTaskPage
+from .pdd_ui_event import PDDTaskPageEvent
 from .settings_ui import SettingsPage
+from .task_repository import TaskRepository
 
 
 class MainWindow(FluentWindow):
     """应用主窗口。"""
 
-    def __init__(self):
+    def __init__(self, task_repository=None):
         super().__init__()
 
         self.pddTaskPage = PDDTaskPage(self)
         self.settingsPage = SettingsPage(self)
+        self.pddTaskPageEvent = PDDTaskPageEvent(
+            self.pddTaskPage,
+            task_repository or TaskRepository(),
+            self,
+        )
 
         self.addSubInterface(self.pddTaskPage, FIF.HOME, "pdd")
         self.addSubInterface(
@@ -52,6 +59,7 @@ class MainWindow(FluentWindow):
         self.setMinimumSize(820, 560)
         self.resize(1040, 680)
         self._moveToScreenCenter()
+        self.pddTaskPageEvent.load_initial_tasks()
 
     def _moveToScreenCenter(self):
         screen = QApplication.primaryScreen()