QR codes generation

Gemfile.lock

@@ -100,6 +100,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
+    chunky_png (1.4.0)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.4)
     crass (1.0.6)
@@ -291,6 +292,10 @@ GEM
     reline (0.6.2)
       io-console (~> 0.5)
     rexml (3.4.4)
+    rqrcode (3.1.0)
+      chunky_png (~> 1.0)
+      rqrcode_core (~> 2.0)
+    rqrcode_core (2.0.0)
     rspec-core (3.13.6)
       rspec-support (~> 3.13.0)
     rspec-expectations (3.13.5)
@@ -455,6 +460,7 @@ DEPENDENCIES
   puma (>= 5.0)
   pundit (~> 2.5)
   rails (~> 8.0.2)
+  rqrcode (~> 3.0)
   rspec-rails
   rubocop-rails-omakase
   selenium-webdriver