agent: Fix repeated 404 requests to malformed '/)' path

src/middleware.ts

@@ -61,6 +61,18 @@ export const onRequest = defineMiddleware(async (context, next) => {
   const method = context.request.method;
   const path = context.url.pathname;
 
+  // Normalize paths corrupted by a trailing stray ")" before routing.
+  // These come from monitors/links that captured a URL together with a
+  // closing parenthesis — e.g. "https://workroot.in/)" copied out of the
+  // markdown/shell form "(https://workroot.in/)". Without this, every such
+  // probe hits a non-existent route and 404s on a loop (recurring "GET /)").
+  // Stripping the trailing paren(s) lets the request resolve to the intended
+  // route (e.g. "/)" -> "/"), so the monitor gets a 301 -> 200 instead.
+  const normalizedPath = path.replace(/\)+$/, '');
+  if (normalizedPath !== path && normalizedPath.length > 0) {
+    return context.redirect(`${normalizedPath}${context.url.search}`, 301);
+  }
+
   // CSRF origin validation for API mutations
   if (!validateCsrfOrigin(context.request, context.url)) {
     logger.warn('middleware', 'CSRF origin check failed', {