style(app): 移除ConversationManager容器的最小高度限制

移除 minHeight: '150px' 约束，允许组件高度更灵活地适应内容，
提升高级模式下的布局自适应性。

影响范围:
- packages/web/src/App.vue
- packages/extension/src/App.vue

Author: linshenkx

packages/extension/src/App.vue

@@ -167,7 +167,7 @@
             </NCard>
 
             <!-- 组件 B: ConversationManager (使用v-show替代v-if避免组件频繁销毁重建) -->
-            <NCard v-show="advancedModeEnabled" :style="{ flexShrink: 0, minHeight: '150px', overflow: 'auto' }" content-style="padding: 0;">
+            <NCard v-show="advancedModeEnabled" :style="{ flexShrink: 0, overflow: 'auto' }" content-style="padding: 0;">
               <ConversationManager
                 v-model:messages="optimizationContext"
                 :available-variables="variableManager?.variableManager.value?.resolveAllVariables() || {}"
@@ -1396,3 +1396,4 @@ import type { ModelSelectOption, TemplateSelectOption } from '@prompt-optimizer/
     100% { transform: rotate(360deg); }
   }
   </style>
+

packages/web/src/App.vue

@@ -167,7 +167,7 @@
             </NCard>
 
             <!-- 组件 B: ConversationManager (使用v-show替代v-if避免组件频繁销毁重建) -->
-            <NCard v-show="advancedModeEnabled" :style="{ flexShrink: 0, minHeight: '150px', overflow: 'auto' }" content-style="padding: 0;">
+            <NCard v-show="advancedModeEnabled" :style="{ flexShrink: 0, overflow: 'auto' }" content-style="padding: 0;">
               <ConversationManager
                 v-model:messages="optimizationContext"
                 :available-variables="variableManager?.variableManager.value?.resolveAllVariables() || {}"
@@ -1396,3 +1396,4 @@ import type { ModelSelectOption, TemplateSelectOption } from '@prompt-optimizer/
     100% { transform: rotate(360deg); }
   }
   </style>
+