Merge branch 'master' into hayat01sh1da/python/introduce-mypy-typechecking

Author: hayat01sh1da

SECURITY.md

@@ -8,7 +8,7 @@
 | Component         | Version(s) / Tooling               | Notes                                                                       |
 | ----------------- | ---------------------------------- | --------------------------------------------------------------------------- |
 | OS baseline       | WSL (Ubuntu 25.10)                 | Shared environment across tracks.                                           |
-| Ruby generators   | Ruby 4.0.2 (`.ruby-version`)       | Uses Ruby stdlib; add gems per script if needed.                            |
+| Ruby generators   | Ruby 4.0.3 (`.ruby-version`)       | Uses Ruby stdlib; add gems per script if needed.                            |
 | Python generators | CPython 3.14.4 (`.python-version`) | Uses Python stdlib; add `requirements.txt` if introducing third-party libs. |
 
 ## Backward Compatibility

ruby/README.md

@@ -1,6 +1,6 @@
 ## 1. Environment
 
-- Ruby 4.0.2
+- Ruby 4.0.3
 
 ## 2. Install Gems via Gemfile and Bundler