Add software version manifest management

admin/software.html

@@ -99,12 +99,25 @@
                 <label for="package">安装包</label>
                 <input id="package" name="package" type="file" />
               </div>
+              <div class="field full">
+                <label for="version-manifest">版本清单 version.json</label>
+                <input id="version-manifest" name="versionManifest" type="file" accept="application/json,.json" />
+              </div>
+              <div class="field full">
+                <label for="version-manifest-content">版本内容 JSON</label>
+                <textarea
+                  id="version-manifest-content"
+                  name="versionManifestContent"
+                  maxlength="8000"
+                  placeholder='留空时，上传安装包后服务端会自动生成 {"version":"1.0.0","update_url":"...","download_url":"..."}'
+                ></textarea>
+              </div>
             </div>
             <div class="checkbox-row">
               <label class="checkbox-field"><input name="active" type="checkbox" checked /> 前台显示</label>
               <label class="checkbox-field"><input name="featured" type="checkbox" /> 精选推荐</label>
             </div>
-            <p class="form-hint">更新软件时只选择新的安装包即可替换下载文件；不选择文件会保留原安装包。</p>
+            <p class="form-hint">上传安装包且版本内容留空时会自动生成 version.json；需要手动调整 release_notes、delta_updates 等内容时，直接编辑版本内容 JSON 后保存。</p>
             <div class="form-actions">
               <button class="primary-action" type="submit" id="submit-button">保存软件</button>
               <button class="secondary-action" type="button" id="reset-form">清空</button>