Stabilize MAX composer focus for sending

worker/src/server.js

@@ -2194,6 +2194,10 @@ async function sendTextAndConfirm(p, externalChatId, text) {
 }
 
 async function fillComposerText(p, text, clearFirst) {
+  if (clearFirst && await fillComposerViaLocator(p, text)) {
+    return true;
+  }
+
   for (let attempt = 0; attempt < 2; attempt++) {
     if (!(await focusComposer(p))) {
       break;
@@ -2246,6 +2250,40 @@ async function fillComposerText(p, text, clearFirst) {
   return false;
 }
 
+async function fillComposerViaLocator(p, text) {
+  const selectors = [
+    "[data-testid='composer'] [role='textbox']",
+    "[data-testid='composer'] [contenteditable='true']",
+    "[class*='composer' i] [role='textbox']",
+    "[class*='composer' i] [contenteditable='true']",
+    "[class*='composer' i] [class*='contenteditable' i]",
+    "[role='textbox'][class*='contenteditable' i]"
+  ];
+
+  for (const selector of selectors) {
+    try {
+      const composer = p.locator(selector).last();
+      if ((await composer.count()) === 0) {
+        continue;
+      }
+
+      await composer.scrollIntoViewIfNeeded({ timeout: 2000 }).catch(() => {});
+      await composer.click({ timeout: 3000 });
+      await composer.fill("", { timeout: 3000 });
+      await composer.fill(text, { timeout: 3000 });
+      await p.waitForTimeout(200);
+      const currentText = await readComposerText(p);
+      if (currentText !== null && messageTextMatches(currentText, text)) {
+        return true;
+      }
+    } catch {
+      // Try the next composer shape.
+    }
+  }
+
+  return false;
+}
+
 async function focusComposer(p) {
   const point = await p.evaluate(() => {
     const cleanText = (value) => String(value || "")
@@ -2301,6 +2339,7 @@ async function focusComposer(p) {
       .map((element) => {
         const rect = element.getBoundingClientRect();
         return {
+          element,
           x: Math.round(rect.left + rect.width / 2),
           y: Math.round(rect.top + rect.height / 2),
           bottom: Math.round(rect.bottom),
@@ -2308,7 +2347,18 @@ async function focusComposer(p) {
         };
       })
       .sort((a, b) => b.bottom - a.bottom || b.area - a.area);
-    return candidates[0] || {
+    const candidate = candidates[0];
+    if (candidate?.element instanceof HTMLElement) {
+      candidate.element.scrollIntoView({ block: "center", inline: "nearest" });
+      candidate.element.focus({ preventScroll: true });
+      const rect = candidate.element.getBoundingClientRect();
+      return {
+        x: Math.round(rect.left + rect.width / 2),
+        y: Math.round(rect.top + rect.height / 2)
+      };
+    }
+
+    return {
       x: Math.round(window.innerWidth * 0.55),
       y: Math.round(window.innerHeight - 40)
     };