style(agent_view): 修复语音/文字输入控件高度不一致问题

lib/modules/agent/views/agent_view.dart

@@ -14,15 +14,14 @@ class AgentView extends StatelessWidget {
     final primaryColor = theme.primaryColor;
     final backgroundColor = theme.scaffoldBackgroundColor;
     final isDarkMode = Theme.of(context).brightness == Brightness.dark;
-    
+
     return Scaffold(
       appBar: AppBar(
         elevation: 1,
         backgroundColor: backgroundColor,
         leading: IconButton(
-          icon: Icon(Icons.arrow_back_ios, 
-            color: isDarkMode ? Colors.white : Colors.black87, 
-            size: 20),
+          icon: Icon(Icons.arrow_back_ios,
+              color: isDarkMode ? Colors.white : Colors.black87, size: 20),
           onPressed: () => Get.back(),
         ),
         titleSpacing: 0,
@@ -88,26 +87,27 @@ class AgentView extends StatelessWidget {
         actions: [
           // TTS开关
           Obx(() => IconButton(
-            icon: Icon(
-              controller.isTtsEnabled.value
-                  ? Icons.volume_up
-                  : Icons.volume_off,
-              color: controller.isTtsEnabled.value
-                  ? primaryColor
-                  : isDarkMode
-                      ? Colors.grey[400]
-                      : Colors.grey,
-            ),
-            onPressed: () => controller.toggleTts(),
-          )),
-          
+                icon: Icon(
+                  controller.isTtsEnabled.value
+                      ? Icons.volume_up
+                      : Icons.volume_off,
+                  color: controller.isTtsEnabled.value
+                      ? primaryColor
+                      : isDarkMode
+                          ? Colors.grey[400]
+                          : Colors.grey,
+                ),
+                onPressed: () => controller.toggleTts(),
+              )),
+
           // 更多选项
           Container(
             width: 34,
             height: 34,
             margin: const EdgeInsets.only(right: 8),
             decoration: BoxDecoration(
-              color: isDarkMode ? Colors.white.withOpacity(0.1) : Colors.grey[100],
+              color:
+                  isDarkMode ? Colors.white.withOpacity(0.1) : Colors.grey[100],
               shape: BoxShape.circle,
               boxShadow: [
                 if (!isDarkMode)
@@ -119,9 +119,8 @@ class AgentView extends StatelessWidget {
               ],
             ),
             child: PopupMenuButton(
-              icon: Icon(Icons.more_vert, 
-                color: isDarkMode ? Colors.white : Colors.black87, 
-                size: 20),
+              icon: Icon(Icons.more_vert,
+                  color: isDarkMode ? Colors.white : Colors.black87, size: 20),
               shape: RoundedRectangleBorder(
                 borderRadius: BorderRadius.circular(12),
               ),
@@ -153,10 +152,12 @@ class AgentView extends StatelessWidget {
               () => ListView.builder(
                 controller: controller.scrollController,
                 reverse: true,
-                padding: const EdgeInsets.symmetric(vertical: 16, horizontal: 16),
+                padding:
+                    const EdgeInsets.symmetric(vertical: 16, horizontal: 16),
                 itemCount: controller.messages.length,
                 itemBuilder: (context, index) {
-                  final message = controller.messages[controller.messages.length - 1 - index];
+                  final message = controller
+                      .messages[controller.messages.length - 1 - index];
                   return Padding(
                     padding: const EdgeInsets.only(bottom: 8),
                     child: MessageBubble(
@@ -307,6 +308,7 @@ class AgentView extends StatelessWidget {
                         if (isTextMode) {
                           // 文本输入模式 - 注意观察图片模式时的高度变化
                           return Container(
+                            height: 44,
                             padding: const EdgeInsets.symmetric(horizontal: 16),
                             decoration: BoxDecoration(
                               color: Colors.grey[200],
@@ -330,7 +332,9 @@ class AgentView extends StatelessWidget {
                                       minLines: isImageActive ? 2 : 1,
                                       style: TextStyle(
                                         fontSize: 15,
-                                        color: isDarkMode ? Colors.white : Colors.black87,
+                                        color: isDarkMode
+                                            ? Colors.white
+                                            : Colors.black87,
                                       ),
                                       decoration: InputDecoration(
                                         hintText: isImageActive
@@ -470,7 +474,8 @@ class AgentView extends StatelessWidget {
                                 Icon(Icons.camera_alt,
                                     color: primaryColor, size: 20),
                                 const SizedBox(width: 8),
-                                const Text('拍照', style: TextStyle(fontSize: 14)),
+                                const Text('拍照',
+                                    style: TextStyle(fontSize: 14)),
                               ],
                             ),
                           ),
@@ -481,7 +486,8 @@ class AgentView extends StatelessWidget {
                                 Icon(Icons.photo_library,
                                     color: primaryColor, size: 20),
                                 const SizedBox(width: 8),
-                                const Text('从相册选择', style: TextStyle(fontSize: 14)),
+                                const Text('从相册选择',
+                                    style: TextStyle(fontSize: 14)),
                               ],
                             ),
                           ),
@@ -506,7 +512,7 @@ class AgentView extends StatelessWidget {
   }) {
     final theme = Theme.of(context);
     final primaryColor = theme.primaryColor;
-    
+
     return GestureDetector(
       onTap: onTap,
       child: Container(
@@ -614,14 +620,14 @@ class _SoundBarState extends State<_SoundBar>
   @override
   Widget build(BuildContext context) {
     final primaryColor = Theme.of(context).primaryColor;
-    
+
     return Container(
       width: 2.5,
       height: widget.isActive ? _animation.value : 3,
       margin: const EdgeInsets.symmetric(horizontal: 1),
       decoration: BoxDecoration(
-        color: widget.isActive 
-            ? primaryColor.withOpacity(0.8) 
+        color: widget.isActive
+            ? primaryColor.withOpacity(0.8)
             : Colors.grey.withOpacity(0.4),
         borderRadius: BorderRadius.circular(1.5),
       ),