feat(gui): breaking changes - Timer Task Management

1. we add menu actions 'manual' and 'about', so
you can click actions to open manual and about dialog.
2. we introduce timer task management feature, so
you can add, delete timer tasks to auto run task.
3. other style improvement in gui...

src/gui/ALAboutDialog.py

@@ -0,0 +1,141 @@
+# -*- coding: utf-8 -*-
+"""
+Copyright (c) 2025 KenanZhu.
+All rights reserved.
+
+This software is provided "as is", without any warranty of any kind.
+You may use, modify, and distribute this file under the terms of the MIT License.
+See the LICENSE file for details.
+"""
+import sys
+import platform
+
+from PySide6.QtGui import (
+    QIcon
+)
+from PySide6.QtWidgets import (
+    QDialog, QApplication
+)
+from PySide6.QtCore import (
+    QTimer, Qt
+)
+
+from gui.AppInfo import AL_VERSION
+from gui.Ui_ALAboutDialog import Ui_ALAboutDialog
+
+from gui import AutoLibraryResource
+
+
+class ALAboutDialog(QDialog, Ui_ALAboutDialog):
+
+    def __init__(
+        self,
+        parent=None
+    ):
+        super().__init__(parent)
+
+        self.setupUi(self)
+        self.modifyUi()
+        self.connectSignals()
+
+
+    def modifyUi(
+        self
+    ):
+
+        self.LogoIconLabel.setPixmap(QIcon(":/res/icon/icons/AutoLibrary.ico").pixmap(48, 48))
+        info_text = self.generateAboutText()
+        self.AboutInfoEdit.setHtml(info_text)
+        self.AboutInfoEdit.setTextInteractionFlags(Qt.TextBrowserInteraction)
+
+
+    def connectSignals(
+        self
+    ):
+
+        self.CopyButton.clicked.connect(self.copyAboutInfo)
+
+
+    def generateAboutText(
+        self
+    ):
+
+        os_info = self.getOSInfo()
+        about_text = f"""
+<h4>Version Information:</h4>
+Version: {AL_VERSION}<br>
+Python version: {platform.python_version()}<br>
+Qt version: {self.getQtVersion()}<br>
+
+<h4>Author Information:</h4>
+Developer: KenanZhu<br>
+Contact: nanoki_zh@163.com<br>
+GitHub: <a href="https://www.github.com/KenanZhu" style="text-decoration: none;">https://www.github.com/KenanZhu</a><br>
+
+<h4>Project Information:</h4>
+License: MIT License<br>
+Project repository: <a href="https://www.github.com/KenanZhu/AutoLibrary" style="text-decoration: none;">https://www.github.com/KenanZhu/AutoLibrary</a><br>
+Project website: <a href="https://www.autolibrary.cv/" style="text-decoration: none;">https://www.autolibrary.cv/</a><br>
+
+<h4>System Information:</h4>
+Processor: {platform.processor()}<br>
+Operating system: {os_info['system']}<br>
+System version: {os_info['version']}<br>
+System architecture: {os_info['architecture']}<br>
+"""
+        return about_text
+
+
+    def getOSInfo(
+        self
+    ):
+
+        system = platform.system()
+        version = platform.version()
+        architecture = platform.architecture()[0]
+
+        if system == "Windows":
+            try:
+                version = platform.win32_ver()[1]
+            except:
+                pass
+        elif system == "Darwin":
+            try:
+                version = platform.mac_ver()[0]
+            except:
+                pass
+        elif system == "Linux":
+            try:
+                import distro # try to get Linux distro info
+                version = f"{distro.name()} {distro.version()}"
+            except ImportError:
+                pass
+
+        return {
+            'system': system,
+            'version': version,
+            'architecture': architecture
+        }
+
+
+    def getQtVersion(
+        self
+    ):
+
+        try:
+            from PySide6.QtCore import qVersion
+            return qVersion()
+        except:
+            return "Unknown"
+
+
+    def copyAboutInfo(
+        self
+    ):
+
+        about_text = self.AboutInfoEdit.toPlainText()
+        clipboard = QApplication.clipboard()
+        clipboard.setText(about_text)
+        original_text = self.CopyButton.text()
+        self.CopyButton.setText("已复制")
+        QTimer.singleShot(2000, lambda: self.CopyButton.setText(original_text))