diff --git a/src/backend/adapter/chatgpt.js b/src/backend/adapter/chatgpt.js
index c1b874a..e960f28 100644
--- a/src/backend/adapter/chatgpt.js
+++ b/src/backend/adapter/chatgpt.js
@@ -74,7 +74,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                     }
                     return false;
                 }
-            });
+            }, meta);
             logger.info('适配器', '图片上传完成', meta);
         }
 
diff --git a/src/backend/adapter/chatgpt_text.js b/src/backend/adapter/chatgpt_text.js
index 3f55091..25301b9 100644
--- a/src/backend/adapter/chatgpt_text.js
+++ b/src/backend/adapter/chatgpt_text.js
@@ -132,7 +132,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                     }
                     return false;
                 }
-            });
+            }, meta);
         }
 
         // 3. 输入提示词
diff --git a/src/backend/adapter/doubao.js b/src/backend/adapter/doubao.js
index b1f5b9c..5295be4 100644
--- a/src/backend/adapter/doubao.js
+++ b/src/backend/adapter/doubao.js
@@ -71,7 +71,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                         url.includes('bytedanceapi.com') &&
                         url.includes('Action=CommitImageUpload');
                 }
-            });
+            }, meta);
 
             logger.info('适配器', '图片上传完成', meta);
         }
diff --git a/src/backend/adapter/doubao_text.js b/src/backend/adapter/doubao_text.js
index 8847b6c..2f0d20b 100644
--- a/src/backend/adapter/doubao_text.js
+++ b/src/backend/adapter/doubao_text.js
@@ -60,7 +60,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                         url.includes('bytedanceapi.com') &&
                         url.includes('Action=CommitImageUpload');
                 }
-            });
+            }, meta);
 
             logger.info('适配器', '图片上传完成', meta);
         }
diff --git a/src/backend/adapter/gemini.js b/src/backend/adapter/gemini.js
index 4415961..233fde2 100644
--- a/src/backend/adapter/gemini.js
+++ b/src/backend/adapter/gemini.js
@@ -60,7 +60,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                         url.includes('google.com/upload/') &&
                         url.includes('upload_id=');
                 }
-            });
+            }, meta);
             logger.info('适配器', '图片上传完成', meta);
         }
 
diff --git a/src/backend/adapter/gemini_biz.js b/src/backend/adapter/gemini_biz.js
index c169781..0b56fd7 100644
--- a/src/backend/adapter/gemini_biz.js
+++ b/src/backend/adapter/gemini_biz.js
@@ -105,7 +105,12 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
         const targetUrl = config.backend?.adapter?.gemini_biz?.entryUrl || config.backend?.geminiBiz?.entryUrl;
 
         if (!targetUrl) {
-            throw new Error('GeminiBiz backend missing entry URL');
+            throw new Error('未填写 gemini_biz 适配器的 entry URL');
+        }
+
+        // 验证 URL 域名
+        if (!targetUrl.includes('business.gemini.google')) {
+            throw new Error('无效的 Gemini Business URL，必须包含 business.gemini.google 域名');
         }
 
         // 开启新对话 - 先等待可能正在进行的登录处理完成
@@ -129,7 +134,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                     // 只追踪 widgetAddContextFile 请求，每个请求代表一张图片上传
                     return response.status() === 200 && url.includes('global/widgetAddContextFile');
                 }
-            });
+            }, meta);
             logger.info('适配器', '图片上传完成', meta);
         }
 
diff --git a/src/backend/adapter/gemini_biz_text.js b/src/backend/adapter/gemini_biz_text.js
index 5d518f3..90ec5ff 100644
--- a/src/backend/adapter/gemini_biz_text.js
+++ b/src/backend/adapter/gemini_biz_text.js
@@ -104,7 +104,12 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
         const targetUrl = config.backend?.adapter?.gemini_biz?.entryUrl || config.backend?.geminiBiz?.entryUrl;
 
         if (!targetUrl) {
-            throw new Error('GeminiBiz backend missing entry URL');
+            throw new Error('未填写 gemini_biz 适配器的 entry URL');
+        }
+
+        // 验证 URL 域名
+        if (!targetUrl.includes('business.gemini.google')) {
+            throw new Error('无效的 Gemini Business URL，必须包含 business.gemini.google 域名');
         }
 
         // 开启新对话 - 先等待可能正在进行的登录处理完成
@@ -128,7 +133,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                     // 只追踪 widgetAddContextFile 请求，每个请求代表一张图片上传
                     return response.status() === 200 && url.includes('global/widgetAddContextFile');
                 }
-            });
+            }, meta);
             logger.info('适配器', '图片上传完成', meta);
         }
 
diff --git a/src/backend/adapter/gemini_text.js b/src/backend/adapter/gemini_text.js
index ecef223..ca17450 100644
--- a/src/backend/adapter/gemini_text.js
+++ b/src/backend/adapter/gemini_text.js
@@ -57,7 +57,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                         url.includes('google.com/upload/') &&
                         url.includes('upload_id=');
                 }
-            });
+            }, meta);
             logger.info('适配器', '图片上传完成', meta);
         }
 
diff --git a/src/backend/adapter/google_flow.js b/src/backend/adapter/google_flow.js
index ff092a6..8623d22 100644
--- a/src/backend/adapter/google_flow.js
+++ b/src/backend/adapter/google_flow.js
@@ -152,7 +152,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
 
                 // 5.2 点击 upload 按钮并选择文件（不等待上传完成）
                 const uploadBtn = page.getByRole('button', { name: /^upload/ });
-                await uploadFilesViaChooser(page, uploadBtn, [imgPath]);
+                await uploadFilesViaChooser(page, uploadBtn, [imgPath], {}, meta);
 
                 // 5.3 先启动上传监听，再点击 crop 按钮
                 const uploadResponsePromise = waitApiResponse(page, {
diff --git a/src/backend/adapter/lmarena.js b/src/backend/adapter/lmarena.js
index b30fe59..670944c 100644
--- a/src/backend/adapter/lmarena.js
+++ b/src/backend/adapter/lmarena.js
@@ -90,7 +90,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
         // 3. 上传图片
         if (imgPaths && imgPaths.length > 0) {
             logger.info('适配器', `开始上传 ${imgPaths.length} 张图片`, meta);
-            await pasteImages(page, textareaSelector, imgPaths);
+            await pasteImages(page, textareaSelector, imgPaths, {}, meta);
             logger.info('适配器', '图片上传完成', meta);
         }
 
diff --git a/src/backend/adapter/lmarena_text.js b/src/backend/adapter/lmarena_text.js
index 7676a2e..1582ce3 100644
--- a/src/backend/adapter/lmarena_text.js
+++ b/src/backend/adapter/lmarena_text.js
@@ -75,7 +75,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
         // 3. 上传图片
         if (imgPaths && imgPaths.length > 0) {
             logger.info('适配器', `开始上传 ${imgPaths.length} 张图片`, meta);
-            await pasteImages(page, textareaSelector, imgPaths);
+            await pasteImages(page, textareaSelector, imgPaths, {}, meta);
             logger.info('适配器', '图片上传完成', meta);
         }
 
diff --git a/src/backend/adapter/nanobananafree_ai.js b/src/backend/adapter/nanobananafree_ai.js
index 80cbefe..253ccc6 100644
--- a/src/backend/adapter/nanobananafree_ai.js
+++ b/src/backend/adapter/nanobananafree_ai.js
@@ -50,7 +50,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
             if (imgPaths.length > 1) {
                 logger.warn('适配器', `此后端仅支持1张图片, 已丢弃 ${imgPaths.length - 1} 张`, meta);
             }
-            await pasteImages(page, textareaSelector, singleImage);
+            await pasteImages(page, textareaSelector, singleImage, {}, meta);
             logger.info('适配器', '图片上传完成', meta);
         }
 
diff --git a/src/backend/adapter/sora.js b/src/backend/adapter/sora.js
index a3fce8b..cf9ce02 100644
--- a/src/backend/adapter/sora.js
+++ b/src/backend/adapter/sora.js
@@ -63,7 +63,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                     }
                     return false;
                 }
-            });
+            }, meta);
             logger.info('适配器', '图片上传完成', meta);
         }
 
diff --git a/src/backend/adapter/zai_is.js b/src/backend/adapter/zai_is.js
index e43e2e0..a0ae973 100644
--- a/src/backend/adapter/zai_is.js
+++ b/src/backend/adapter/zai_is.js
@@ -150,7 +150,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                     }
                     return false;
                 }
-            });
+            }, meta);
             logger.info('适配器', '图片上传完成', meta);
         }
 
diff --git a/src/backend/adapter/zai_is_text.js b/src/backend/adapter/zai_is_text.js
index 657b5ac..bb4b34a 100644
--- a/src/backend/adapter/zai_is_text.js
+++ b/src/backend/adapter/zai_is_text.js
@@ -167,7 +167,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                     }
                     return false;
                 }
-            });
+            }, meta);
 
             logger.info('适配器', '图片上传完成', meta);
         }
diff --git a/src/backend/adapter/zenmux_ai_text.js b/src/backend/adapter/zenmux_ai_text.js
index 858d499..f31abac 100644
--- a/src/backend/adapter/zenmux_ai_text.js
+++ b/src/backend/adapter/zenmux_ai_text.js
@@ -83,7 +83,7 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                     }
                     return false;
                 }
-            });
+            }, meta);
             logger.info('适配器', '图片上传完成', meta);
         }
 
diff --git a/src/backend/engine/utils.js b/src/backend/engine/utils.js
index 089b3f2..d5de00e 100644
--- a/src/backend/engine/utils.js
+++ b/src/backend/engine/utils.js
@@ -22,6 +22,7 @@
 
 import path from 'path';
 import { logger } from '../../utils/logger.js';
+import { TIMEOUTS } from '../../utils/constants.js';
 
 /**
  * 生成指定范围内的随机数
@@ -152,6 +153,69 @@ export function getHumanClickPoint(box, type = 'random') {
     return { x, y };
 }
 
+/**
+ * 等待元素布局稳定（基于 requestAnimationFrame）
+ * @param {import('playwright-core').Locator} locator - 建议直接传 Locator
+ * @param {number} stableFrames - 需要连续稳定的帧数，建议提高到 10 (约160ms)
+ * @param {number} timeout - 总超时时间 (ms)
+ */
+async function waitForElementStable(locator, stableFrames = 10, timeout = 2000) {
+    const element = await locator.elementHandle();
+    if (!element) return;
+
+    try {
+        await element.evaluate((targetEl, { stableFrames, timeout }) => {
+            return new Promise((resolve) => {
+                let lastRect = targetEl.getBoundingClientRect();
+                let consecutiveStable = 0;
+                const startTime = performance.now();
+
+                function check() {
+                    // 1. 超时检查：如果超过总时间，不再等待直接返回，防止死循环
+                    if (performance.now() - startTime > timeout) {
+                        resolve();
+                        return;
+                    }
+
+                    const rect = targetEl.getBoundingClientRect();
+
+                    // 检查位置和大小是否变化 (容差 1px)
+                    const isSame =
+                        Math.abs(rect.x - lastRect.x) < 1 &&
+                        Math.abs(rect.y - lastRect.y) < 1 &&
+                        Math.abs(rect.width - lastRect.width) < 1 &&
+                        Math.abs(rect.height - lastRect.height) < 1;
+
+                    if (isSame) {
+                        consecutiveStable++;
+                        // 2. 只有连续 N 帧都不动才确定
+                        if (consecutiveStable >= stableFrames) {
+                            resolve();
+                            return;
+                        }
+                    } else {
+                        // 只要动了一次，计数器归零，重新开始计数
+                        consecutiveStable = 0;
+                        lastRect = rect;
+                    }
+
+                    requestAnimationFrame(check);
+                }
+
+                // 3. 稍微延迟启动检测，给响应式框架留启动时间
+                setTimeout(() => {
+                    requestAnimationFrame(check);
+                }, 50);
+            });
+        }, { stableFrames, timeout });
+    } catch (e) {
+        console.log('Stability check failed, continuing anyway:', e);
+    } finally {
+        // 清理 handle，防止内存泄漏
+        await element.dispose();
+    }
+}
+
 /**
  * 安全点击元素 (包含滚动、拟人化移动和点击)
  * 支持 CSS selector、ElementHandle 和 Locator 三种输入
@@ -161,12 +225,13 @@ export function getHumanClickPoint(box, type = 'random') {
  * @param {string} [options.bias='random'] - 偏移偏好: 'input' 或 'random'
  * @param {number} [options.clickCount=1] - 点击次数: 1=单击, 2=双击
  * @param {number} [options.timeout=15000] - 超时时间 (毫秒)
+ * @param {boolean} [options.waitStable=false] - 是否等待元素布局稳定后再点击
  * @returns {Promise<void>}
  */
 export async function safeClick(page, target, options = {}) {
     const clickCount = options.clickCount || 1;
-    const timeout = options.timeout || 15000;
-    const maxRetries = 1;
+    const timeout = options.timeout || TIMEOUTS.ELEMENT_CLICK;
+    const waitStable = options.waitStable !== false; // 默认 true
 
     const doClick = async () => {
         let el;
@@ -189,6 +254,11 @@ export async function safeClick(page, target, options = {}) {
         // 确保元素在可视区域内
         await el.scrollIntoViewIfNeeded().catch(() => { });
 
+        // 如果开启了布局稳定等待，等待元素位置稳定
+        if (waitStable) {
+            await waitForElementStable(page, el);
+        }
+
         // 使用 ghost-cursor 点击
         if (page.cursor) {
             const box = await el.boundingBox();
@@ -207,33 +277,25 @@ export async function safeClick(page, target, options = {}) {
         await el.click({ clickCount });
     };
 
-    // 带超时和重试的执行
-    for (let attempt = 0; attempt <= maxRetries; attempt++) {
-        try {
-            await Promise.race([
-                doClick(),
-                new Promise((_, reject) =>
-                    setTimeout(() => reject(new Error('CLICK_TIMEOUT')), timeout)
-                )
-            ]);
-            return; // 成功则退出
-        } catch (err) {
-            const isTimeout = err.message === 'CLICK_TIMEOUT';
-            const isLastAttempt = attempt === maxRetries;
+    // 带超时的执行（移除了重试机制）
+    let timeoutId;
+    try {
+        const timeoutPromise = new Promise((_, reject) => {
+            timeoutId = setTimeout(() => reject(new Error('CLICK_TIMEOUT')), timeout);
+        });
 
-            if (isLastAttempt) {
-                // 最后一次尝试失败，抛出明确的错误
-                const selector = typeof target === 'string' ? target : '元素';
-                throw new Error(`点击操作失败 (${selector}): ${isTimeout ? '超时' : err.message}`);
-            }
-
-            // 非最后一次，记录日志并重试
-            logger.warn('浏览器', `点击操作${isTimeout ? '超时' : '失败'}，正在重试... (${attempt + 1}/${maxRetries + 1})`);
-            await sleep(300, 500);
-        }
+        await Promise.race([
+            doClick().finally(() => clearTimeout(timeoutId)),
+            timeoutPromise
+        ]);
+    } catch (err) {
+        clearTimeout(timeoutId);
+        const selector = typeof target === 'string' ? target : '元素';
+        throw new Error(`点击操作失败 (${selector}): ${err.message}`);
     }
 }
 
+
 /**
  * 安全滚动 (包含拟人化移动和滚轮滚动)
  * 支持 CSS selector、ElementHandle 和 Locator 三种输入
@@ -432,11 +494,12 @@ async function findAllFileInputs(page) {
  * @param {string[]} filePaths - 图片文件路径数组
  * @param {Object} [options] - 可选配置
  * @param {Function} [options.uploadValidator] - 自定义上传确认回调函数, 接收 response 参数
+ * @param {Object} [meta] - 元数据 (用于日志)
  * @returns {Promise<void>}
  */
-export async function pasteImages(page, target, filePaths, options = {}) {
+export async function pasteImages(page, target, filePaths, options = {}, meta = {}) {
     if (!filePaths || filePaths.length === 0) return;
-    logger.info('浏览器', `正在处理 ${filePaths.length} 张图片...`);
+    logger.info('浏览器', `正在处理 ${filePaths.length} 张图片...`, meta);
 
     // 1. 拟人化: 先点击一下目标区域 (让后台看起来像是用户聚焦了输入框)
     await safeClick(page, target, { bias: 'input' });
@@ -450,7 +513,7 @@ export async function pasteImages(page, target, filePaths, options = {}) {
             throw new Error('未找到任何 input[type="file"] 控件,无法上传');
         }
 
-        logger.info('浏览器', `找到 ${fileInputs.length} 个文件输入框,尝试上传...`);
+        logger.info('浏览器', `找到 ${fileInputs.length} 个文件输入框,尝试上传...`, meta);
 
         // LMArena 通常只有一个用于聊天的上传控件，或者我们尝试第一个可用的
         // 如果有多个，通常最后一个是当前对话框的，或者我们可以尝试全部 (比较暴力但有效)
@@ -485,14 +548,14 @@ export async function pasteImages(page, target, filePaths, options = {}) {
             const uploadPromise = new Promise((resolve) => {
                 const timeout = setTimeout(() => {
                     cleanup();
-                    logger.warn('浏览器', `图片上传等待超时 (已确认: ${validatedCount}/${expectedUploads})`);
+                    logger.warn('浏览器', `图片上传等待超时 (已确认: ${validatedCount}/${expectedUploads})`, meta);
                     resolve();
                 }, 60000); // 60s 超时
 
                 const onResponse = (response) => {
                     if (options.uploadValidator(response)) {
                         validatedCount++;
-                        logger.info('浏览器', `图片上传进度: ${validatedCount}/${expectedUploads}`);
+                        logger.info('浏览器', `图片上传进度: ${validatedCount}/${expectedUploads}`, meta);
                         if (validatedCount >= expectedUploads) {
                             cleanup();
                             resolve();
@@ -508,12 +571,12 @@ export async function pasteImages(page, target, filePaths, options = {}) {
                 page.on('response', onResponse);
             });
 
-            logger.info('浏览器', `已提交图片, 正在等待上传确认...`);
+            logger.info('浏览器', `已提交图片, 正在等待上传确认...`, meta);
             await uploadPromise;
-            logger.info('浏览器', `所有图片上传完成`);
+            logger.info('浏览器', `所有图片上传完成`, meta);
         } else {
             // 默认行为: 等待上传预览出现
-            logger.info('浏览器', `已提交图片, 等待预览生成...`);
+            logger.info('浏览器', `已提交图片, 等待预览生成...`, meta);
             await sleep(500, 1000);
         }
 
@@ -532,9 +595,10 @@ export async function pasteImages(page, target, filePaths, options = {}) {
  * @param {Function} [options.uploadValidator] - 自定义上传确认回调函数, 接收 response 参数，返回 true 表示该响应代表一次成功上传
  * @param {number} [options.timeout=60000] - 上传超时时间 (毫秒)
  * @param {string} [options.clickAction='click'] - 点击动作: 'click' 或 'dblclick'
+ * @param {Object} [meta] - 元数据 (用于日志)
  * @returns {Promise<void>}
  */
-export async function uploadFilesViaChooser(page, triggerTarget, filePaths, options = {}) {
+export async function uploadFilesViaChooser(page, triggerTarget, filePaths, options = {}, meta = {}) {
     if (!filePaths || filePaths.length === 0) return;
 
     const timeout = options.timeout || 60000;
@@ -542,7 +606,7 @@ export async function uploadFilesViaChooser(page, triggerTarget, filePaths, opti
     const expectedUploads = filePaths.length;
     let uploadedCount = 0;
 
-    logger.info('浏览器', `正在处理 ${filePaths.length} 张图片 (filechooser 模式)...`);
+    logger.info('浏览器', `正在处理 ${filePaths.length} 张图片 (filechooser 模式)...`, meta);
 
     // 设置上传确认监听
     const uploadPromise = new Promise((resolve) => {
@@ -554,14 +618,14 @@ export async function uploadFilesViaChooser(page, triggerTarget, filePaths, opti
 
         const timeoutId = setTimeout(() => {
             cleanup();
-            logger.warn('浏览器', `图片上传等待超时 (已确认: ${uploadedCount}/${expectedUploads})`);
+            logger.warn('浏览器', `图片上传等待超时 (已确认: ${uploadedCount}/${expectedUploads})`, meta);
             resolve();
         }, timeout);
 
         const onResponse = (response) => {
             if (options.uploadValidator(response)) {
                 uploadedCount++;
-                logger.info('浏览器', `图片上传进度: ${uploadedCount}/${expectedUploads}`);
+                logger.info('浏览器', `图片上传进度: ${uploadedCount}/${expectedUploads}`, meta);
                 if (uploadedCount >= expectedUploads) {
                     cleanup();
                     resolve();
@@ -592,7 +656,7 @@ export async function uploadFilesViaChooser(page, triggerTarget, filePaths, opti
     // 等待上传完成（如果有验证器）
     if (options.uploadValidator) {
         await uploadPromise;
-        logger.info('浏览器', '所有图片上传完成');
+        logger.info('浏览器', '所有图片上传完成', meta);
     }
 }
 
diff --git a/src/backend/pool/PoolManager.js b/src/backend/pool/PoolManager.js
index 78e78d8..91cfb50 100644
--- a/src/backend/pool/PoolManager.js
+++ b/src/backend/pool/PoolManager.js
@@ -23,6 +23,7 @@ export class PoolManager {
         this.strategy = config.backend.pool.strategy || 'least_busy';
         this.strategySelector = createStrategySelector(this.strategy);
         this.initialized = false;
+        this.roundRobinIndex = 0;
     }
 
     /**
diff --git a/src/backend/pool/Worker.js b/src/backend/pool/Worker.js
index f609386..be421ea 100644
--- a/src/backend/pool/Worker.js
+++ b/src/backend/pool/Worker.js
@@ -74,7 +74,11 @@ export class Worker {
             navigationHandler = handlers.length > 0
                 ? async (page) => {
                     for (const handler of handlers) {
-                        try { await handler(page); } catch (e) { /* ignore */ }
+                        try {
+                            await handler(page);
+                        } catch (e) {
+                            logger.debug('工作池', `导航处理器执行失败: ${e.message}`);
+                        }
                     }
                 }
                 : null;
diff --git a/src/backend/utils/error.js b/src/backend/utils/error.js
index c9598fb..24d6992 100644
--- a/src/backend/utils/error.js
+++ b/src/backend/utils/error.js
@@ -4,7 +4,7 @@
  */
 
 import { logger } from '../../utils/logger.js';
-import { ADAPTER_ERRORS } from '../../utils/constants.js';
+import { ADAPTER_ERRORS } from '../../server/errors.js';
 
 // ==========================================
 // 可重试判定
diff --git a/src/backend/utils/page.js b/src/backend/utils/page.js
index 7072b13..6ed202a 100644
--- a/src/backend/utils/page.js
+++ b/src/backend/utils/page.js
@@ -4,6 +4,7 @@
  */
 
 import { sleep, safeClick, isPageValid, createPageCloseWatcher, getRealViewport, clamp, random } from '../engine/utils.js';
+import { TIMEOUTS } from '../../utils/constants.js';
 
 // ==========================================
 // 页面认证锁
@@ -58,7 +59,7 @@ export function isPageAuthLocked(page) {
  * @returns {Promise<void>}
  */
 export async function waitForInput(page, selectorOrLocator, options = {}) {
-    const { timeout = 20000, click = true } = options;
+    const { timeout = TIMEOUTS.INPUT_WAIT, click = true } = options;
 
     const isLocator = typeof selectorOrLocator !== 'string';
     const displayName = isLocator ? 'Locator' : selectorOrLocator;
@@ -104,7 +105,7 @@ export async function waitForInput(page, selectorOrLocator, options = {}) {
  * @throws {Error} 导航失败时抛出错误
  */
 export async function gotoWithCheck(page, url, options = {}) {
-    const { timeout = 20000 } = options;
+    const { timeout = TIMEOUTS.NAVIGATION } = options;
     try {
         const response = await page.goto(url, {
             waitUntil: 'domcontentloaded',
@@ -172,7 +173,7 @@ export async function moveMouseAway(page) {
  * @returns {Promise<import('playwright-core').ElementHandle|null>} 元素句柄，失败返回 null
  */
 export async function scrollToElement(page, selectorOrLocator, options = {}) {
-    const { timeout = 30000 } = options;
+    const { timeout = TIMEOUTS.ELEMENT_SCROLL } = options;
     try {
         const isLocator = typeof selectorOrLocator !== 'string';
         let element;
@@ -209,7 +210,7 @@ export async function scrollToElement(page, selectorOrLocator, options = {}) {
  * @returns {Promise<import('playwright-core').Response>} 响应对象
  */
 export async function waitApiResponse(page, options = {}) {
-    const { urlMatch, urlContains, method = 'POST', timeout = 120000, errorText } = options;
+    const { urlMatch, urlContains, method = 'POST', timeout = TIMEOUTS.API_RESPONSE, errorText } = options;
 
     if (!isPageValid(page)) {
         throw new Error('PAGE_INVALID');
diff --git a/src/server/errors.js b/src/server/errors.js
index 70d150c..43d3ec8 100644
--- a/src/server/errors.js
+++ b/src/server/errors.js
@@ -142,3 +142,44 @@ export function getErrorStatus(code) {
 export function getErrorDetails(code) {
     return ERROR_DETAILS[code] || { message: '未知错误', status: 500 };
 }
+
+// ==========================================
+// 适配器层错误码（从 constants.js 统一到此处）
+// ==========================================
+
+/**
+ * 适配器错误码
+ * @readonly
+ */
+export const ADAPTER_ERRORS = {
+    /** 页面已关闭 */
+    PAGE_CLOSED: 'PAGE_CLOSED',
+
+    /** 页面崩溃 */
+    PAGE_CRASHED: 'PAGE_CRASHED',
+
+    /** 页面状态无效 */
+    PAGE_INVALID: 'PAGE_INVALID',
+
+    /** 网络错误 */
+    NETWORK_ERROR: 'NETWORK_ERROR',
+
+    /** 超时错误 */
+    TIMEOUT_ERROR: 'TIMEOUT_ERROR',
+
+    /** HTTP 错误 */
+    HTTP_ERROR: 'HTTP_ERROR',
+
+    /** 限流 */
+    RATE_LIMITED: 'RATE_LIMITED',
+
+    /** 需要验证码 */
+    CAPTCHA_REQUIRED: 'CAPTCHA_REQUIRED',
+
+    /** 需要登录 */
+    AUTH_REQUIRED: 'AUTH_REQUIRED',
+
+    /** 内容被阻止 (API/页面检测到错误关键词) */
+    CONTENT_BLOCKED: 'CONTENT_BLOCKED',
+};
+
diff --git a/src/server/queue.js b/src/server/queue.js
index 0d6f540..564ffb0 100644
--- a/src/server/queue.js
+++ b/src/server/queue.js
@@ -77,9 +77,13 @@ export function createQueueManager(queueConfig, callbacks) {
      */
     async function cleanupTask(task) {
         if (task?.imagePaths) {
-            const fs = await import('fs');
+            const fs = await import('fs/promises');
             for (const p of task.imagePaths) {
-                try { fs.unlinkSync(p); } catch (e) { /* ignore */ }
+                try {
+                    await fs.unlink(p);
+                } catch (e) {
+                    logger.debug('服务器', `临时文件清理失败: ${p}`);
+                }
             }
         }
     }
diff --git a/src/server/server.js b/src/server/server.js
index 630c9c1..9f578f4 100644
--- a/src/server/server.js
+++ b/src/server/server.js
@@ -58,6 +58,11 @@ const PORT = config.server?.port || 3000;
 /** @type {string} 认证令牌 */
 const AUTH_TOKEN = config.server?.auth;
 
+// 检测默认密钥
+if (AUTH_TOKEN === 'sk-change-me-to-your-secure-key') {
+    logger.warn('服务器', '检测到默认密钥！如果在公网环境下请修改默认密钥');
+}
+
 /** @type {string} 心跳模式 */
 const KEEPALIVE_MODE = config.server?.keepalive?.mode || 'comment';
 
diff --git a/src/utils/constants.js b/src/utils/constants.js
index 0213992..30bf598 100644
--- a/src/utils/constants.js
+++ b/src/utils/constants.js
@@ -12,24 +12,30 @@
  * @readonly
  */
 export const TIMEOUTS = {
-    /** 导航超时（页面跳转） */
-    NAVIGATION: 30000,
+    /** 元素点击超时 (safeClick) */
+    ELEMENT_CLICK: 15000,
+
+    /** 输入框等待超时 (waitForInput) */
+    INPUT_WAIT: 20000,
+
+    /** 导航超时（页面跳转 gotoWithCheck） */
+    NAVIGATION: 20000,
+
+    /** 元素滚动等待超时 (scrollToElement) */
+    ELEMENT_SCROLL: 30000,
 
     /** 导航超时（扩展，带重试场景） */
     NAVIGATION_EXTENDED: 60000,
 
-    /** 输入框等待超时 */
-    INPUT_WAIT: 10000,
-
-    /** API 响应超时（图片生成） */
-    API_RESPONSE: 120000,
-
     /** 上传确认超时 */
     UPLOAD_CONFIRM: 60000,
 
     /** OAuth 登录流程超时 */
     OAUTH_FLOW: 60000,
 
+    /** API 响应超时（图片生成 waitApiResponse） */
+    API_RESPONSE: 120000,
+
     /** 心跳间隔 */
     HEARTBEAT_INTERVAL: 3000,
 
@@ -60,46 +66,6 @@ export const RETRY = {
     ],
 };
 
-// ==========================================
-// 错误码（适配器层，与 server/errors.js 互补）
-// ==========================================
-
-/**
- * 适配器错误码
- * @readonly
- */
-export const ADAPTER_ERRORS = {
-    /** 页面已关闭 */
-    PAGE_CLOSED: 'PAGE_CLOSED',
-
-    /** 页面崩溃 */
-    PAGE_CRASHED: 'PAGE_CRASHED',
-
-    /** 页面状态无效 */
-    PAGE_INVALID: 'PAGE_INVALID',
-
-    /** 网络错误 */
-    NETWORK_ERROR: 'NETWORK_ERROR',
-
-    /** 超时错误 */
-    TIMEOUT_ERROR: 'TIMEOUT_ERROR',
-
-    /** HTTP 错误 */
-    HTTP_ERROR: 'HTTP_ERROR',
-
-    /** 限流 */
-    RATE_LIMITED: 'RATE_LIMITED',
-
-    /** 需要验证码 */
-    CAPTCHA_REQUIRED: 'CAPTCHA_REQUIRED',
-
-    /** 需要登录 */
-    AUTH_REQUIRED: 'AUTH_REQUIRED',
-
-    /** 内容被阻止 (API/页面检测到错误关键词) */
-    CONTENT_BLOCKED: 'CONTENT_BLOCKED',
-};
-
 // ==========================================
 // 人机模拟配置
 // ==========================================