fix: migrate to Policyfile

[damacus]

Summary

• migrate cookbook dependency management from Berksfile to Policyfile
• wire Kitchen/ChefSpec/Copilot setup to Policyfile and named run lists
• remove stale Berks ignore entries
• fix existing Cookstyle and markdownlint issues that would block CI

Validation

• chef install Policyfile.rb
• cookstyle
• GEM_HOME=/opt/chef-workstation/embedded/lib/ruby/gems/3.1.0 GEM_PATH=/opt/chef-workstation/embedded/lib/ruby/gems/3.1.0 /opt/chef-workstation/embedded/bin/rspec --format documentation
• KITCHEN_LOCAL_YAML=kitchen.dokken.yml kitchen list
• yamllint .
• markdownlint-cli2 '**/*.md'
• actionlint
• git diff --check

Notes

• chef exec rspec hit a local macOS user-gem signature issue loading /Users/damacus/.chef/gem/ruby/3.1.0/gems/json-2.20.0/lib/json/ext/parser.bundle; the embedded Chef Workstation gem path passed with 7 examples, 0 failures.

[github-actions]

Slowest examples

Top 7 slowest examples (0 seconds, 100% of total time)

Example	Description	Time in seconds
spec/libraries/helpers_spec.rb:22	Php::Cookbook::Helpers#php_version rhel is expected to eq "7.2"	0.00664
spec/libraries/helpers_spec.rb:56	Php::Cookbook::Helpers#php_version debian ubuntu 20.04 is expected to eq "7.4"	0.00058
spec/libraries/helpers_spec.rb:29	Php::Cookbook::Helpers#php_version amazon is expected to eq "8.2"	0.00047
spec/libraries/helpers_spec.rb:50	Php::Cookbook::Helpers#php_version debian ubuntu 18.04 is expected to eq "7.2"	0.00046
spec/libraries/helpers_spec.rb:38	Php::Cookbook::Helpers#php_version debian debian 10 is expected to eq "7.3"	0.00043
spec/libraries/helpers_spec.rb:44	Php::Cookbook::Helpers#php_version debian debian 11 is expected to eq "7.4"	0.00042
spec/libraries/helpers_spec.rb:62	Php::Cookbook::Helpers#php_version debian ubuntu 22.04 is expected to eq "8.1"	0.00035