refactor(home): 优化主页布局和运行控制面板

- 将主页左右布局改为弹性布局，左侧程序列表占2/5宽度，右侧控制区域占3/5宽度
- 移除程序列表组件的固定宽度设置，使其能够自适应布局
- 在运行控制面板中添加主轴最小尺寸限制以优化空间使用
- 移除暂停/继续按钮中的占位按钮，简化按钮逻辑
- 修改开始/继续按钮为暂停/继续按钮，支持运行中状态切换
- 更新按钮图标和文字根据当前运行状态动态显示
- 移除运行状态指示器，精简界面元素

lib/features/home/pages/home_page.dart

@@ -93,20 +93,24 @@ class _HomePageState extends ConsumerState<HomePage>
       padding: const EdgeInsets.all(20),
       child: Row(
         children: [
-          // 左侧：程序列表（运行时锁定）
+          // 左侧：程序列表（运行时锁定），占 2/5 宽度
-          Opacity(
+          Expanded(
-            opacity: runState.status == RunStatus.idle ? 1.0 : 0.6,
+            flex: 2,
-            child: IgnorePointer(
+            child: Opacity(
-              ignoring: runState.status != RunStatus.idle,
+              opacity: runState.status == RunStatus.idle ? 1.0 : 0.6,
-              child: const ProgramList(),
+              child: IgnorePointer(
+                ignoring: runState.status != RunStatus.idle,
+                child: const ProgramList(),
+              ),
             ),
           ),
           const SizedBox(width: 20),
-          // 右侧：运行控制区域
+          // 右侧：运行控制区域，占 3/5 宽度
           Expanded(
+            flex: 3,
             child: Column(
               children: [
-                const Expanded(child: RunningControlPanel()),
+                const RunningControlPanel(),
                 if (runState.status != RunStatus.idle) ...[
                   const SizedBox(height: 16),
                   const Expanded(child: RunStatusMonitor()),

lib/features/home/widgets/program_list.dart

@@ -18,7 +18,6 @@ class ProgramList extends ConsumerWidget {
     final programsNotifier = ref.read(programsProvider.notifier);
 
     return Container(
-      width: 380,
       decoration: BoxDecoration(
         color: AppTheme.cardBg,
         borderRadius: BorderRadius.circular(8),

lib/features/home/widgets/running_control_panel.dart

@@ -42,6 +42,7 @@ class RunningControlPanel extends ConsumerWidget {
     return Padding(
       padding: const EdgeInsets.all(16),
       child: Column(
+        mainAxisSize: MainAxisSize.min,
         crossAxisAlignment: CrossAxisAlignment.stretch,
         children: [
           // 当前选中程序显示
@@ -117,20 +118,6 @@ class RunningControlPanel extends ConsumerWidget {
                 ),
               ),
               const SizedBox(width: 12),
-              // 暂停/继续按钮（待机态禁用）
-              Expanded(
-                child: SizedBox(
-                  height: 48,
-                  child: CommonButton(
-                    text: l10n?.pause ?? '暂停',
-                    icon: Icons.pause,
-                    type: ButtonType.secondary,
-                    enabled: false,
-                    onPressed: null,
-                  ),
-                ),
-              ),
-              const SizedBox(width: 12),
               // 停止按钮（待机态禁用）
               Expanded(
                 child: SizedBox(
@@ -163,6 +150,7 @@ class RunningControlPanel extends ConsumerWidget {
     return Padding(
       padding: const EdgeInsets.all(16),
       child: Column(
+        mainAxisSize: MainAxisSize.min,
         crossAxisAlignment: CrossAxisAlignment.stretch,
         children: [
           // 当前程序名称
@@ -204,7 +192,7 @@ class RunningControlPanel extends ConsumerWidget {
           // 控制按钮
           Row(
             children: [
-              // 开始/继续按钮
+              // 暂停/继续按钮（运行中切换）
               Expanded(
                 flex: 2,
                 child: SizedBox(
@@ -212,27 +200,18 @@ class RunningControlPanel extends ConsumerWidget {
                   child: CommonButton(
                     text: runState.status == RunStatus.paused
                         ? (l10n?.continue_ ?? '继续')
-                        : (l10n?.run ?? '运行'),
+                        : (l10n?.pause ?? '暂停'),
                     icon: runState.status == RunStatus.paused
                         ? Icons.play_arrow
-                        : Icons.play_arrow,
+                        : Icons.pause,
                     type: ButtonType.primary,
-                    onPressed: () => runNotifier.resume(),
+                    onPressed: () {
-                  ),
+                      if (runState.status == RunStatus.paused) {
-                ),
+                        runNotifier.resume();
-              ),
+                      } else {
-              const SizedBox(width: 12),
+                        runNotifier.pause();
-              // 暂停按钮
+                      }
-              Expanded(
+                    },
-                child: SizedBox(
-                  height: 48,
-                  child: CommonButton(
-                    text: l10n?.pause ?? '暂停',
-                    icon: Icons.pause,
-                    type: ButtonType.warning,
-                    onPressed: runState.status == RunStatus.paused
-                        ? null
-                        : () => runNotifier.pause(),
                   ),
                 ),
               ),
@@ -251,38 +230,6 @@ class RunningControlPanel extends ConsumerWidget {
               ),
             ],
           ),
-
-          const SizedBox(height: 12),
-
-          // 状态指示
-          Row(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: [
-              Container(
-                width: 8,
-                height: 8,
-                decoration: BoxDecoration(
-                  shape: BoxShape.circle,
-                  color: runState.status == RunStatus.paused
-                      ? AppTheme.accentWarning
-                      : AppTheme.statusRunning,
-                ),
-              ),
-              const SizedBox(width: 8),
-              Text(
-                runState.status == RunStatus.paused
-                    ? (l10n?.paused ?? '已暂停')
-                    : (l10n?.running ?? '运行中'),
-                style: TextStyle(
-                  color: runState.status == RunStatus.paused
-                      ? AppTheme.accentWarning
-                      : AppTheme.statusRunning,
-                  fontWeight: FontWeight.w500,
-                  fontSize: 12,
-                ),
-              ),
-            ],
-          ),
         ],
       ),
     );