fix(cli): don't crash when an @-mention captures a non-path blob (#25980)

packages/cli/src/ui/hooks/atCommandProcessor.ts

@@ -188,9 +188,15 @@ export async function checkPermissions(
     const pathName = part.content.substring(1);
     if (!pathName) continue;
 
-    const resolvedPathName = resolveToRealPath(
-      path.resolve(config.getTargetDir(), pathName),
-    );
+    let resolvedPathName: string;
+    try {
+      resolvedPathName = resolveToRealPath(
+        path.resolve(config.getTargetDir(), pathName),
+      );
+    } catch {
+      // skip if resolveToRealPath errors out
+      continue;
+    }
 
     if (config.validatePathAccess(resolvedPathName, 'read')) {
       if (await fileExists(resolvedPathName)) {