fix: automate graduate timetable read and refine blue glass Dock

mobile/lib/app/hepan_app.dart

@@ -231,7 +231,7 @@ class _ShellState extends State<_Shell> with WidgetsBindingObserver {
           gradient: LinearGradient(
             begin: Alignment.topLeft,
             end: Alignment.bottomRight,
-            colors: [Color(0xFFF0F7F5), Color(0xFFF7F8F5), Color(0xFFEFF5F3)],
+            colors: [Color(0xFFF0F6FF), Color(0xFFF7FAFF), Color(0xFFEDF4FF)],
           ),
         ),
         child: SafeArea(
@@ -313,15 +313,11 @@ class _ShellState extends State<_Shell> with WidgetsBindingObserver {
                             : Offset.zero,
                         duration: MediaQuery.disableAnimationsOf(context)
                             ? Duration.zero
-                            : const Duration(milliseconds: 240),
-                        curve: Curves.easeOutCubic,
-                        child: AnimatedOpacity(
-                          opacity: _dockHidden ? 0 : 1,
-                          duration: const Duration(milliseconds: 180),
-                          child: GlassDock(
-                            selectedIndex: _tab,
-                            onSelected: _selectTab,
-                          ),
+                            : const Duration(milliseconds: 360),
+                        curve: Curves.easeInOutCubic,
+                        child: GlassDock(
+                          selectedIndex: _tab,
+                          onSelected: _selectTab,
                         ),
                       ),
                     ),