feat(digital-human): 脚本模型选择器移到「文案与 BGM」区

脚本生成属文案环节,把脚本模型(可选)下拉从「语音与画面」移到「文案与 BGM」区。

Co-Authored-By: Claude <noreply@anthropic.com>

src/web/pages/DigitalHuman.tsx

@@ -1003,6 +1003,18 @@ export default function DigitalHuman() {
             </label>
           )}
           {previewBgm && <PreviewAudio src={previewBgm} />}
+          <label className="digital-human-field">
+            <span>脚本模型（可选）</span>
+            <select value={llmModel} onChange={(event) => setLlmModel(event.target.value)}>
+              <option value="">默认（deepseek-v4-flash）</option>
+              {llmModel && !llmModels.some((m) => m.name === llmModel) && (
+                <option value={llmModel}>{llmModel}</option>
+              )}
+              {llmModels.map((m) => (
+                <option key={m.name} value={m.name}>{m.name}</option>
+              ))}
+            </select>
+          </label>
         </section>
 
         <section className="digital-human-panel">
@@ -1074,18 +1086,6 @@ export default function DigitalHuman() {
                 ))}
             </select>
           </label>
-          <label className="digital-human-field">
-            <span>脚本模型（可选）</span>
-            <select value={llmModel} onChange={(event) => setLlmModel(event.target.value)}>
-              <option value="">默认（deepseek-v4-flash）</option>
-              {llmModel && !llmModels.some((m) => m.name === llmModel) && (
-                <option value={llmModel}>{llmModel}</option>
-              )}
-              {llmModels.map((m) => (
-                <option key={m.name} value={m.name}>{m.name}</option>
-              ))}
-            </select>
-          </label>
           <div className="digital-human-form-grid">
             <label className="digital-human-field">
               <span>宽度</span>