refactor(style): 统一项目代码风格，整理导入顺序、间距规范与方法排列

- GUI 模块统一 QtCore → QtGui → QtWidgets 导入排列，各类独占一行按字母排序
- 统一类间两空行、类内方法间一空行、函数间一空行的间距规范
- 统一方法排列顺序：__init__ → setupUi → connectSignals → public → Slot → private
- 统一 _widgets 中 ConditionRowFrame/ActionStepFrame 方法命名（populate* / toScript / updateValueWidget）
- LibTimeSelector 迁入 operators/abs 抽象层

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/gui/ALStatusLabel.py

@@ -9,14 +9,20 @@ See the LICENSE file for details.
 """
 from enum import Enum
 
-from PySide6.QtWidgets import (
-    QLabel
-)
 from PySide6.QtCore import (
-    Qt, Property, QPropertyAnimation, QEasingCurve
+    Property,
+    QEasingCurve,
+    QPropertyAnimation,
+    Qt
 )
 from PySide6.QtGui import (
-    QPainter, QColor, QConicalGradient, QPalette
+    QColor,
+    QConicalGradient,
+    QPainter,
+    QPalette
+)
+from PySide6.QtWidgets import (
+    QLabel
 )
 
 
@@ -44,7 +50,6 @@ class ALStatusLabel(QLabel):
 
         self.setupUi()
 
-
     def setupUi(
         self
     ):
@@ -59,14 +64,12 @@ class ALStatusLabel(QLabel):
         self.RunningAnimation.setLoopCount(-1)
         self.RunningAnimation.setEasingCurve(QEasingCurve.Type.Linear)
 
-
     def isDarkMode(
         self
     ) -> bool:
 
         return self.palette().color(QPalette.ColorRole.Window).value() < 128
 
-
     def getMarkColor(
         self
     ) -> QColor:
@@ -111,7 +114,6 @@ class ALStatusLabel(QLabel):
         self.__icon_angle = value
         self.update()
 
-
     def paintEvent(
         self,
         event