Merge pull request #646 from aim2bpg/fix/ci-css-build-step

chore: build CSS assets before running tests in CI

Merge pull request #637 from aim2bpg/chore/tooling-skills-docs-overhaul

chore: overhaul tooling, skills, docs, and screenshots organisation

Merge pull request #636 from aim2bpg/fix/ruby-wasm-cache-key-include-…

…gemfile-lock

docs: explain why ruby-wasm cache key must hash Gemfile.lock

fix: show correct name for iOS Chrome in browser warning (#629)

iOS Chrome (CriOS) uses WebKit under the hood and has the same
Ruby WASM incompatibility as Safari (asyncify stack overflow).
Previously it was misidentified as 'Safari'; now shows 'Chrome (iOS)'
and remains blocked to prevent the crash on navigation.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

chore: add SSH mount and improve devcontainer setup

- Mount ~/.ssh into container (readonly) for git SSH access
- Auto-update rbenv and ruby-build on container rebuild
- Install Claude Code CLI if not already installed

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

fix: license and copyright year

📝 docs: update README to Ruby 3.4

⬆️ yarn upgrade