feat: 增加产品日志展示功能，显示价格变更日志

Management.html

@@ -1201,7 +1201,34 @@
                     </div>`;
                 }
                 
-
+                // 产品日志展示
+                if (supply.product_log) {
+                    try {
+                        // 解析产品日志JSON
+                        const productLogs = JSON.parse(supply.product_log);
+                        if (Array.isArray(productLogs) && productLogs.length > 0) {
+                            detailsHTML += `<div style="margin: 10px 0; font-size: 14px;">
+                                <h4 style="margin: 0 0 10px 0; padding-bottom: 5px; border-bottom: 2px solid #ff4d4f; color: #333; font-size: 16px;">价格变更日志</h4>
+                                <div style="display: flex; flex-direction: column; gap: 8px;">
+                                    ${productLogs.map((log, index) => `
+                                        <div style="display: flex; align-items: flex-start; gap: 8px; padding: 10px; background-color: #fff1f0; border-radius: 4px;">
+                                            <div style="background-color: #ff4d4f; color: white; padding: 2px 6px; border-radius: 4px; font-size: 12px; font-weight: bold; min-width: 40px; text-align: center;">日志${index + 1}</div>
+                                            <div style="font-size: 13px; color: #666; flex: 1;">${log}</div>
+                                        </div>
+                                    `).join('')}
+                                </div>
+                            </div>`;
+                        }
+                    } catch (e) {
+                        // 解析失败，直接展示原始日志
+                        detailsHTML += `<div style="margin: 10px 0; font-size: 14px;">
+                            <h4 style="margin: 0 0 10px 0; padding-bottom: 5px; border-bottom: 2px solid #ff4d4f; color: #333; font-size: 16px;">价格变更日志</h4>
+                            <div style="padding: 10px; background-color: #fff1f0; border-radius: 4px; font-size: 13px; color: #666;">
+                                ${supply.product_log}
+                            </div>
+                        </div>`;
+                    }
+                }
                 
                 // 状态
                 detailsHTML += `<span class="supply-status ${statusClass}" style="display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 12px; margin-top: 5px;">${statusText}</span>`;