Stage 7: Rails 7.2 → 8.1 on Ruby 3.2.11

- Bump Rails to 8.1.3 (Ruby unchanged at 3.2.11, new gemset rails8-upgrade)
- config.load_defaults 8.1; merge app:update diffs for all environment files
- Remove routing-filter 0.7.0; replace with native scope '(:locale)' in
  routes.rb and default_url_options in ApplicationController
- Delete config/initializers/routing_filter_rails71_patch.rb
- Replace vendored TinyMCE 3.x (~200 files) with tinymce-rails ~> 8.3;
  migrate admin_interface.js from jQuery .tinymce()/advanced theme to
  tinymce.init(); add config/tinymce.yml; note: TinyMCE 7+ is GPL
- rails-i18n ~> 8.0 added explicitly (previously indirect dependency)
- awesome_nested_set, acts-as-taggable-on pinned to git main/master
  (gemspec activerecord < 8.1 ceiling; no functional incompatibility;
  repin to version once upstream releases updated gemspecs)
- globalize ~> 7.0, libxml-ruby ~> 5.0, nokogiri ~> 1.18, pg ~> 1.5
- sass-rails, coffee-rails, uglifier moved from :assets group to main
  (Sprockets 4 convention; :assets group no longer meaningful)
- Node: head, draft, lock_owner marked belongs_to optional: true
- Page: node, user, editor marked belongs_to optional: true
- Static assets in public/images/ and public/javascripts/ referenced via
  plain HTML tags; Rails 8 load_defaults raises on pipeline helpers for
  undeclared assets
- sessions_controller_test.rb: remove stale require and dead rescue_action
- users_controller_test.rb: assert button[type=submit] not input[type=submit]
  (Rails 8 button_to renders <button> not <input>)
- test_helper.rb: node.reload after children.create! (awesome_nested_set
  3.9.0 does not refresh parent in memory after callback)
- 129 runs, 339 assertions, 3 failures, 0 errors — identical baseline to 7.2

1 files changed, 93 insertions, 0 deletions

diff --git a/public/assets/tinymce/plugins/help/js/i18n/keynav/en-52342be420d962ac312749b8b89fa5855e2ceb6a74efc416d179d68eb2443cbf.js b/public/assets/tinymce/plugins/help/js/i18n/keynav/en-52342be420d962ac312749b8b89fa5855e2ceb6a74efc416d179d68eb2443cbf.js
new file mode 100644
index 00000000..ec3d729a
--- /dev/null
+++ b/public/assets/tinymce/plugins/help/js/i18n/keynav/en-52342be420d962ac312749b8b89fa5855e2ceb6a74efc416d179d68eb2443cbf.js
@@ -0,0 +1,93 @@
+tinymce.Resource.add('tinymce.html-i18n.help-keynav.en',
+'<h1>Begin keyboard navigation</h1>\n' +
+  '\n' +
+  '<dl>\n' +
+  '  <dt>Focus the Menu bar</dt>\n' +
+  '  <dd>Windows or Linux: Alt+F9</dd>\n' +
+  '  <dd>macOS: &#x2325;F9</dd>\n' +
+  '  <dt>Focus the Toolbar</dt>\n' +
+  '  <dd>Windows or Linux: Alt+F10</dd>\n' +
+  '  <dd>macOS: &#x2325;F10</dd>\n' +
+  '  <dt>Focus the footer</dt>\n' +
+  '  <dd>Windows or Linux: Alt+F11</dd>\n' +
+  '  <dd>macOS: &#x2325;F11</dd>\n' +
+  '  <dt>Focus the notification</dt>\n' +
+  '  <dd>Windows or Linux: Alt+F12</dd>\n' +
+  '  <dd>macOS: &#x2325;F12</dd>\n' +
+  '  <dt>Focus a contextual toolbar</dt>\n' +
+  '  <dd>Windows, Linux or macOS: Ctrl+F9</dd>\n' +
+  '</dl>\n' +
+  '\n' +
+  '<p>Navigation will start at the first UI item, which will be highlighted, or underlined in the case of the first item in\n' +
+  '  the Footer element path.</p>\n' +
+  '\n' +
+  '<h1>Navigate between UI sections</h1>\n' +
+  '\n' +
+  '<p>To move from one UI section to the next, press <strong>Tab</strong>.</p>\n' +
+  '\n' +
+  '<p>To move from one UI section to the previous, press <strong>Shift+Tab</strong>.</p>\n' +
+  '\n' +
+  '<p>The <strong>Tab</strong> order of these UI sections is:</p>\n' +
+  '\n' +
+  '<ol>\n' +
+  '  <li>Menu bar</li>\n' +
+  '  <li>Each toolbar group</li>\n' +
+  '  <li>Sidebar</li>\n' +
+  '  <li>Element path in the footer</li>\n' +
+  '  <li>Word count toggle button in the footer</li>\n' +
+  '  <li>Branding link in the footer</li>\n' +
+  '  <li>Editor resize handle in the footer</li>\n' +
+  '</ol>\n' +
+  '\n' +
+  '<p>If a UI section is not present, it is skipped.</p>\n' +
+  '\n' +
+  '<p>If the footer has keyboard navigation focus, and there is no visible sidebar, pressing <strong>Shift+Tab</strong>\n' +
+  '  moves focus to the first toolbar group, not the last.</p>\n' +
+  '\n' +
+  '<h1>Navigate within UI sections</h1>\n' +
+  '\n' +
+  '<p>To move from one UI element to the next, press the appropriate <strong>Arrow</strong> key.</p>\n' +
+  '\n' +
+  '<p>The <strong>Left</strong> and <strong>Right</strong> arrow keys</p>\n' +
+  '\n' +
+  '<ul>\n' +
+  '  <li>move between menus in the menu bar.</li>\n' +
+  '  <li>open a sub-menu in a menu.</li>\n' +
+  '  <li>move between buttons in a toolbar group.</li>\n' +
+  '  <li>move between items in the footer’s element path.</li>\n' +
+  '</ul>\n' +
+  '\n' +
+  '<p>The <strong>Down</strong> and <strong>Up</strong> arrow keys</p>\n' +
+  '\n' +
+  '<ul>\n' +
+  '  <li>move between menu items in a menu.</li>\n' +
+  '  <li>move between items in a toolbar pop-up menu.</li>\n' +
+  '</ul>\n' +
+  '\n' +
+  '<p><strong>Arrow</strong> keys cycle within the focused UI section.</p>\n' +
+  '\n' +
+  '<p>To close an open menu, an open sub-menu, or an open pop-up menu, press the <strong>Esc</strong> key.</p>\n' +
+  '\n' +
+  '<p>If the current focus is at the ‘top’ of a particular UI section, pressing the <strong>Esc</strong> key also exits\n' +
+  '  keyboard navigation entirely.</p>\n' +
+  '\n' +
+  '<h1>Execute a menu item or toolbar button</h1>\n' +
+  '\n' +
+  '<p>When the desired menu item or toolbar button is highlighted, press <strong>Return</strong>, <strong>Enter</strong>,\n' +
+  '  or the <strong>Space bar</strong> to execute the item.</p>\n' +
+  '\n' +
+  '<h1>Navigate non-tabbed dialogs</h1>\n' +
+  '\n' +
+  '<p>In non-tabbed dialogs, the first interactive component takes focus when the dialog opens.</p>\n' +
+  '\n' +
+  '<p>Navigate between interactive dialog components by pressing <strong>Tab</strong> or <strong>Shift+Tab</strong>.</p>\n' +
+  '\n' +
+  '<h1>Navigate tabbed dialogs</h1>\n' +
+  '\n' +
+  '<p>In tabbed dialogs, the first button in the tab menu takes focus when the dialog opens.</p>\n' +
+  '\n' +
+  '<p>Navigate between interactive components of this dialog tab by pressing <strong>Tab</strong> or\n' +
+  '  <strong>Shift+Tab</strong>.</p>\n' +
+  '\n' +
+  '<p>Switch to another dialog tab by giving the tab menu focus and then pressing the appropriate <strong>Arrow</strong>\n' +
+  '  key to cycle through the available tabs.</p>\n');