fix: 修复会签场景下消息卡片更新问题

- 添加 updateMessageCardsForPartialApprove 方法处理会签部分通过
- 会签一人通过后，其他人的消息卡片显示进度并保留按钮
- 修复 Dockerfile 构建顺序问题
- 修复前端类型定义问题

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/Dockerfile

@@ -18,13 +18,14 @@ COPY --from=composer:latest /usr/bin/composer /usr/local/bin/composer
 # Set working directory
 WORKDIR /app
 
-# Copy composer files
+# Copy composer files and necessary directories first
 COPY composer.json composer.lock* ./
+COPY config ./config/
 
 # Install dependencies
 RUN composer install --no-interaction --optimize-autoloader
 
-# Copy application files
+# Copy remaining application files
 COPY . .
 
 # Expose port