调整浏览器自动化后端脚本，将元素操作相关函数移至新文件script.js

plugin/lib/quickcomposer/browser/script.js

@@ -0,0 +1,112 @@
+const { executeScript } = require("./browser");
+
+const clickElement = async (selector) => {
+  return await executeScript(`document.querySelector('${selector}').click()`);
+};
+
+const inputText = async (selector, text) => {
+  return await executeScript(
+    `
+      const el = document.querySelector('${selector}');
+      el.value = '${text}';
+      el.dispatchEvent(new Event('input'));
+      el.dispatchEvent(new Event('change'));
+    `
+  );
+};
+
+const getText = async (selector) => {
+  return await executeScript(
+    `document.querySelector('${selector}')?.textContent || ''`
+  );
+};
+
+const getHtml = async (selector) => {
+  return await executeScript(
+    `const element = document.querySelector('${selector}');
+      return element ? element.innerHTML : '';`
+  );
+};
+
+const hideElement = async (selector) => {
+  return await executeScript(
+    `document.querySelector('${selector}').style.display = 'none'`
+  );
+};
+
+const showElement = async (selector) => {
+  return await executeScript(
+    `document.querySelector('${selector}').style.display = ''`
+  );
+};
+
+const scrollTo = async (x, y) => {
+  return await executeScript(`window.scrollTo(${x}, ${y})`);
+};
+
+const scrollToElement = async (selector) => {
+  return await executeScript(
+    `document.querySelector('${selector}').scrollIntoView()`
+  );
+};
+
+const getScrollPosition = async () => {
+  return await executeScript(`
+      return JSON.stringify({
+        x: window.pageXOffset || document.documentElement.scrollLeft,
+        y: window.pageYOffset || document.documentElement.scrollTop
+      });
+    `);
+};
+
+const getPageSize = async () => {
+  return await executeScript(`
+      return JSON.stringify({
+        width: Math.max(
+          document.documentElement.scrollWidth,
+          document.documentElement.clientWidth
+        ),
+        height: Math.max(
+          document.documentElement.scrollHeight,
+          document.documentElement.clientHeight
+        )
+      });
+    `);
+};
+
+const waitForElement = async (selector, timeout = 5000) => {
+  const startTime = Date.now();
+  while (Date.now() - startTime < timeout) {
+    const result = await executeScript(
+      `!!document.querySelector('${selector}')`
+    );
+    if (result) return;
+    await new Promise((resolve) => setTimeout(resolve, 100));
+  }
+  throw new Error(`等待元素 ${selector} 超时`);
+};
+
+const injectCSS = async (css) => {
+  return await executeScript(
+    `
+      const style = document.createElement('style');
+      style.textContent = \`${css}\`;
+      document.head.appendChild(style);
+    `
+  );
+};
+
+module.exports = {
+  clickElement,
+  inputText,
+  getText,
+  getHtml,
+  hideElement,
+  showElement,
+  scrollTo,
+  scrollToElement,
+  getScrollPosition,
+  getPageSize,
+  waitForElement,
+  injectCSS,
+};