Add SPA session validation and buglist, update migration docs

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

node_modules/playwright/lib/mcp/browser/tools/utils.js

@@ -20,11 +20,9 @@ var utils_exports = {};
 __export(utils_exports, {
   callOnPageNoTrace: () => callOnPageNoTrace,
   dateAsFileName: () => dateAsFileName,
-  generateLocator: () => generateLocator,
   waitForCompletion: () => waitForCompletion
 });
 module.exports = __toCommonJS(utils_exports);
-var import_utils = require("playwright-core/lib/utils");
 async function waitForCompletion(tab, callback) {
   const requests = /* @__PURE__ */ new Set();
   let frameNavigated = false;
@@ -76,14 +74,6 @@ async function waitForCompletion(tab, callback) {
     dispose();
   }
 }
-async function generateLocator(locator) {
-  try {
-    const { resolvedSelector } = await locator._resolveSelector();
-    return (0, import_utils.asLocator)("javascript", resolvedSelector);
-  } catch (e) {
-    throw new Error("Ref not found, likely because element was removed. Use browser_snapshot to see what elements are currently on the page.");
-  }
-}
 async function callOnPageNoTrace(page, callback) {
   return await page._wrapApiCall(() => callback(page), { internal: true });
 }
@@ -95,6 +85,5 @@ function dateAsFileName(extension) {
 0 && (module.exports = {
   callOnPageNoTrace,
   dateAsFileName,
-  generateLocator,
   waitForCompletion
 });