chore(deps): bump all dependencies (gems + bun) across the gem and docs site

[mhenrixon]

Summary

Bumps every dependency surface to the latest resolvable versions before further feature work.

Surface	Notable bumps
Root gem bundle (lock gitignored)	rails 8.1.3.1, mcp 0.22 → 1.3, simplecov 0.22 → 1.1, rubocop 1.90, rouge 5.1, commonmarker 2.9, zeitwerk 2.8.3
docs/ site bundle	same core bumps + rubocop-rails 2.37, brakeman 8.0.6, thruster 0.1.25, playwright-ruby-client 1.62.0
docs/ bun packages	daisyui 5.6.13 → 5.7.22, tailwindcss + @tailwindcss/cli 4.3.3, playwright 1.62.1

Code changes required by the bumps:

• spec/spec_helper.rb — SimpleCov 1.x renamed add_filter → skip and add_group → group (same behavior; old names deprecation-warn).
• 4 files — RuboCop 1.90's new Style/DirectiveScope cop autocorrected single-statement disable/enable pairs to disable-next.
• docs/ CSS rebuilt against daisyUI 5.7.

Test plan

• bundle exec rake green at root: 945 examples, 0 failures, 94.70% line coverage, rubocop clean
• MCP specs (33 examples) pass against the mcp 1.3 major — the JSON-RPC surface needed no code change
• docs/ suite green: 15 examples incl. Playwright system specs on playwright 1.62 with rebuilt daisyUI 5.7 CSS
• All bumped gems verified to support Ruby 3.2 (the CI matrix floor)

Deviations & judgment calls

• Root Gemfile.lock is gitignored (standard for a gem), so the root bundle bump ships only as the deprecation/cop fixes — CI resolves fresh and already picks these versions.
• bundle exec rubocop run from docs/ crashes (cannot load such file -- rubocop-rake) because RuboCop walks up and loads the parent gem's .rubocop.yml, whose plugins aren't in the docs bundle. Verified pre-existing — identical failure on the old lockfile — so left out of scope.
• GitHub Actions versions untouched — scope kept to package-manager dependencies (gems + bun).
• playwright npm (1.62.1) vs playwright-ruby-client gem (1.62.0) — matching minor is the compatibility contract; system specs confirm it.

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Summary by cubic

Bumps all gem and bun dependencies for the gem and docs site to current versions to pick up security and compatibility updates. No runtime behavior change; only build/lint config and docs CSS are affected.

• Updates (highlights): gem resolves to rails 8.1.3.1; mcp 0.22 → 1.3 (no code changes required); simplecov 0.22 → 1.1; rubocop 1.90; rouge 5.1; commonmarker 2.9; zeitwerk 2.8.3. Docs: rubocop-rails 2.37, brakeman 8.0.6, thruster 0.1.25, playwright-ruby-client 1.62. Frontend: daisyui 5.7.22 (from 5.6.13), tailwindcss/@tailwindcss/cli 4.3.3, playwright 1.62.1.

• Required code tweaks: simplecov 1.x rename in spec_helper.rb (add_filter → skip, add_group → group), and rubocop 1.90’s Style/DirectiveScope autocorrect to disable-next; docs CSS rebuilt against daisyui 5.7.

• Review notes: root Gemfile.lock is gitignored (gem conventions), so CI/local will re-resolve to these versions; playwright npm 1.62.1 and playwright-ruby-client 1.62.0 are compatible; rubocop run from docs/ still fails due to parent config plugin resolution (pre-existing).

^{Written for commit 3f2bbc6. Summary will update on new commits.}