Add per-node translation management: list, edit, destroy, compare

Replaces the old locale-switch-and-edit-the-same-screen workflow,
which conflated presentation locale with content locale and let an
editor silently drift into editing the wrong language with no
persistent signal that anything had changed. Non-default-locale
content now has its own explicit routes and screens, never sharing
a route param with the ambient chrome locale.

- PageTranslationsController: index/show/edit/update/destroy,
  scoped to Page.non_default_locales; update handles first-time
  creation too, so there's no separate new/create step.
- Reads go through the actual PageTranslation row
  (Page#translation_summary), never through the Globalize
  fallback-bearing accessor -- fallback is correct for public
  rendering but wrong for editing, where a missing translation
  needs to look empty, not borrowed from another locale.
- Translations ride on the page's own draft/head cycle; no
  independent publish state.
- nodes#show gains a Translations section (per-locale Lock+Edit /
  Create+Lock, Destroy, a link into the read-only Compare view) and
  a locale indicator on its own default-locale content; nodes#edit,
  nodes#update, and nodes#autosave are pinned to the default locale
  via Globalize.with_locale regardless of the ambient route locale.
- nodes#show no longer double-loads the node or calls wipe_draft!
  on every view (see previous commit for why that's now safe).
- .preview_link_row is renamed .aligned_action_row now that it has
  a second real consumer.

1 files changed, 6 insertions, 0 deletions

diff --git a/config/routes.rb b/config/routes.rb
index 5d61bae..38a497d 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -55,6 +55,12 @@ Cccms::Application.routes.draw do
           put :revert
         end
 
+        resources :translations, controller: 'page_translations',
+          param: :translation_locale,
+          constraints: { translation_locale: /en/ },
+          only: [:index, :show, :edit, :update, :destroy]
+
+
         resources :related_assets, only: [:create, :destroy, :update] do
           collection do
             get :search