bugfix: forgot to install rubocop => not added to lockfile :D

Gemfile.lock

@@ -68,6 +68,7 @@ GEM
       tzinfo (~> 2.0)
     addressable (2.8.5)
       public_suffix (>= 2.0.2, < 6.0)
+    ast (2.4.2)
     bcrypt (3.1.19)
     bindex (0.8.1)
     bootsnap (1.17.0)
@@ -113,6 +114,8 @@ GEM
     jbuilder (2.11.5)
       actionview (>= 5.0.0)
       activesupport (>= 5.0.0)
+    json (2.6.3)
+    language_server-protocol (3.17.0.3)
     launchy (2.5.2)
       addressable (~> 2.8)
     loofah (2.21.4)
@@ -141,6 +144,10 @@ GEM
     nio4r (2.5.9)
     nokogiri (1.15.4-x86_64-linux)
       racc (~> 1.4)
+    parallel (1.23.0)
+    parser (3.2.2.4)
+      ast (~> 2.4.1)
+      racc
     pg (1.5.4)
     pry (0.14.2)
       coderay (~> 1.1)
@@ -185,6 +192,7 @@ GEM
       rake (>= 12.2)
       thor (~> 1.0)
       zeitwerk (~> 2.5)
+    rainbow (3.1.1)
     rake (13.1.0)
     rdoc (6.6.0)
       psych (>= 4.0.0)
@@ -209,6 +217,20 @@ GEM
       rspec-mocks (~> 3.12)
       rspec-support (~> 3.12)
     rspec-support (3.12.1)
+    rubocop (1.57.2)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.2.2.4)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.8, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.28.1, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.30.0)
+      parser (>= 3.2.1.0)
+    ruby-progressbar (1.13.0)
     rubyzip (2.3.2)
     selenium-webdriver (4.10.0)
       rexml (~> 3.2, >= 3.2.5)
@@ -239,6 +261,7 @@ GEM
       railties (>= 6.0.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
+    unicode-display_width (2.5.0)
     web-console (4.2.1)
       actionview (>= 6.0.0)
       activemodel (>= 6.0.0)
@@ -273,6 +296,7 @@ DEPENDENCIES
   puma (~> 5.0)
   rails (~> 7.0.4)
   rspec-rails
+  rubocop
   selenium-webdriver
   simplecov
   sprockets-rails