Update react_on_rails to 16.2.0.beta.12

This update fixes the bin/dev pack generation failure that occurred with beta.11.

Key changes:
- Update react_on_rails gem from 16.2.0.beta.11 to 16.2.0.beta.12
- Update react-on-rails npm package to match (16.2.0-beta.12)
- Update json gem dependency from 2.14.1 to 2.16.0

The beta.12 release includes a fix for the Bundler auto-exec interception issue
where pack generation would fail with "Could not find command react_on_rails:generate_packs".
The fix wraps system("bundle", "exec", ...) calls with Bundler.with_unbundled_env to
prevent Bundler from intercepting subprocess calls.

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

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

Author: justin808

Gemfile

@@ -5,7 +5,7 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 ruby "3.4.6"
 
-gem "react_on_rails", "16.2.0.beta.11"
+gem "react_on_rails", "16.2.0.beta.12"
 gem "shakapacker", "9.3.3"
 
 # Bundle edge Rails instead: gem "rails", github: "rails/rails"

Gemfile.lock

@@ -161,7 +161,7 @@ GEM
     jbuilder (2.12.0)
       actionview (>= 5.0.0)
       activesupport (>= 5.0.0)
-    json (2.14.1)
+    json (2.16.0)
     language_server-protocol (3.17.0.5)
     launchy (3.0.1)
       addressable (~> 2.8)
@@ -293,7 +293,7 @@ GEM
       erb
       psych (>= 4.0.0)
       tsort
-    react_on_rails (16.2.0.beta.11)
+    react_on_rails (16.2.0.beta.12)
       addressable
       connection_pool
       execjs (~> 2.5)
@@ -483,7 +483,7 @@ DEPENDENCIES
   rails-html-sanitizer
   rails_best_practices
   rainbow
-  react_on_rails (= 16.2.0.beta.11)
+  react_on_rails (= 16.2.0.beta.12)
   redcarpet
   redis (~> 5.0)
   rspec-rails (~> 6.0.0)

package.json

@@ -77,7 +77,7 @@
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "react-intl": "^6.4.4",
-    "react-on-rails": "16.2.0-beta.11",
+    "react-on-rails": "16.2.0-beta.12",
     "react-redux": "^8.1.0",
     "react-router": "^6.13.0",
     "react-router-dom": "^6.13.0",

yarn.lock

@@ -8508,10 +8508,10 @@ react-is@^18.0.0, react-is@^18.3.1:
   resolved "https://registry.npmjs.org/react-is/-/react-is-18.3.1.tgz"
   integrity sha512-/LLMVyas0ljjAtoYiPqYiL8VWXzUUdThrmU5+n20DZv+a+ClRoevUzw5JxU+Ieh5/c87ytoTBV9G1FiKfNJdmg==
 
-react-on-rails@16.2.0-beta.11:
-  version "16.2.0-beta.11"
-  resolved "https://registry.npmjs.org/react-on-rails/-/react-on-rails-16.2.0-beta.11.tgz#18171869a5b0eb5e6d99574e5c6b3ea44ac11d82"
-  integrity sha512-VkDmpEoazMAeTxLuWKNsyEIFjcEwAXd63xVdKfrJJEBwTJUYYjs86MEtvmY6Weboc5mtDvlXeXoLSm1biECPOA==
+react-on-rails@16.2.0-beta.12:
+  version "16.2.0-beta.12"
+  resolved "https://registry.npmjs.org/react-on-rails/-/react-on-rails-16.2.0-beta.12.tgz#1c2be050ad1eaabdd5cdd00bb43667d46cfba9df"
+  integrity sha512-gsXyOC22/jHLKOSwCG8RSFCFLpzsaAg8UFAy7dIlQRzJy2cRIlCepXEajBKeLRiGVKHdvPTzFBqQutccLNJIew==
 
 react-proxy@^1.1.7:
   version "1.1.8"