feat: 添加日历批量操作与客户端时区感知功能，优化前端 UI 交互体验

apps/lib/features/home/ui/widgets/home_background_field.dart

@@ -59,24 +59,26 @@ class _HomeBottomGlow extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return Align(
-      alignment: Alignment.bottomCenter,
-      child: IgnorePointer(
-        child: Container(
-          key: homeBottomGlowKey,
-          width: double.infinity,
-          height: AppSpacing.xxl * 6,
-          margin: const EdgeInsets.symmetric(horizontal: AppSpacing.xl),
-          decoration: BoxDecoration(
-            color: AppColors.homeBackgroundGlowSoft.withValues(alpha: 0.2),
-            borderRadius: BorderRadius.circular(AppSpacing.xxl * 2),
-            boxShadow: [
-              BoxShadow(
-                color: AppColors.homeBackgroundGlow.withValues(alpha: 0.12),
-                blurRadius: AppSpacing.xxl * 2,
-                spreadRadius: AppSpacing.md,
-              ),
-            ],
+    return IgnorePointer(
+      child: Align(
+        alignment: Alignment.bottomCenter,
+        child: Transform.translate(
+          offset: const Offset(0, AppSpacing.lg),
+          child: Container(
+            key: homeBottomGlowKey,
+            width: AppSpacing.xxl * 12,
+            height: AppSpacing.xxl * 3,
+            decoration: BoxDecoration(
+              color: AppColors.homeBackgroundGlowSoft.withValues(alpha: 0.18),
+              borderRadius: BorderRadius.circular(AppSpacing.xxl * 2),
+              boxShadow: [
+                BoxShadow(
+                  color: AppColors.homeBackgroundGlow.withValues(alpha: 0.1),
+                  blurRadius: AppSpacing.xxl,
+                  spreadRadius: AppSpacing.sm,
+                ),
+              ],
+            ),
           ),
         ),
       ),

apps/lib/features/home/ui/widgets/home_floating_header.dart

@@ -26,9 +26,9 @@ class HomeFloatingHeader extends StatelessWidget {
       key: homeFloatingHeaderKey,
       padding: const EdgeInsets.fromLTRB(
         AppSpacing.lg,
-        AppSpacing.sm,
+        AppSpacing.xs,
         AppSpacing.lg,
-        AppSpacing.sm,
+        AppSpacing.xs,
       ),
       decoration: const BoxDecoration(
         color: AppColors.homeToolbarSurface,
@@ -93,6 +93,11 @@ class _HeaderIconButton extends StatelessWidget {
   Widget build(BuildContext context) {
     return IconButton(
       visualDensity: VisualDensity.compact,
+      padding: const EdgeInsets.all(AppSpacing.xs),
+      constraints: const BoxConstraints(
+        minWidth: AppSpacing.xxl + AppSpacing.lg,
+        minHeight: AppSpacing.xxl + AppSpacing.lg,
+      ),
       onPressed: onPressed,
       icon: Icon(icon, size: AppSpacing.xxl, color: AppColors.slate900),
     );
@@ -109,6 +114,11 @@ class _MessagesButton extends StatelessWidget {
   Widget build(BuildContext context) {
     return IconButton(
       visualDensity: VisualDensity.compact,
+      padding: const EdgeInsets.all(AppSpacing.xs),
+      constraints: const BoxConstraints(
+        minWidth: AppSpacing.xxl + AppSpacing.lg,
+        minHeight: AppSpacing.xxl + AppSpacing.lg,
+      ),
       onPressed: onPressed,
       icon: Stack(
         clipBehavior: Clip.none,