feat: editor language menu, title field, header actions, publish dialogs, read-only rendering and draft recovery

features/editor_core.qa.md

@@ -4,16 +4,15 @@
 
 `docs/design/components.md`'s `ErrorView` only documents two fixed copies (`kind: 'not-found'` →
 "Page not found" / Home, and `kind: 'error'` → the generic retry copy). The editor's own 404-on-
-load state needs different copy ("This article doesn't exist." / "All articles" → /article),
-per `docs/design/states.md`'s HTTP-status-to-copy table. Either widen `ErrorView` with an optional
-title/description/action override, or add a third `kind`; this is a same-layer prop widening, not
-a new component, so it doesn't need its own slice.
+load state shows the Version unavailable copy ("This version isn't available" / "Back to
+Articles" → /article), per `features/localization_editor_navigation.feature`, which supersedes the
+original "This article doesn't exist." copy; it is rendered by `EditorVersionGone`.
 
 Known limitation, not a bug to silently fix: per `features/public_article_read.feature`,
 `GET /v1/article/{id}` falls back to public online-only visibility on a malformed/expired jwt
 (no 401). So if a session is already stale when the owner opens an *offline* article, the GET
 answers 404 exactly like a truly deleted article — the editor cannot tell the two apart from this
-response alone, and correctly shows the "This article doesn't exist." state.
+response alone, and correctly shows the "This version isn't available" state.
 
 ## Automated (Vitest + Vue Test Utils, `task test:web`)
 
@@ -46,9 +45,9 @@ Fixture article (reused across cases unless a scenario overrides a field): id 12
 6. **Relative save time after an hour** — after a 200 save at 11:02, advance the fake clock past
    one hour with no further edit; assert SaveStatus switches to "Saved {n} min ago".
 7. **Save failed, Examples-driven** — (a) `PATCH` resolves 500, (b) `PATCH` rejects (network);
-   in each, assert SaveStatus "Save failed" with a visible Retry button, and the editor still
+   in each, assert SaveStatus "Save failed" with the primary button "Try saving again", and the editor still
    shows the typed body.
-8. **Retry recovers** — from Save failed (500), click Retry; assert `PATCH` is called again with
+8. **Retry recovers** — from Save failed (500), click "Try saving again"; assert `PATCH` is called again with
    the same body; resolve 200; assert SaveStatus "Saved at {time}".
 9. **404 on save shows a toast, not the error SaveStatus** — from Unsaved changes, save; resolve
    `PATCH` 404; assert a toast "That article no longer exists." appears and SaveStatus never
@@ -74,15 +73,17 @@ Fixture article (reused across cases unless a scenario overrides a field): id 12
     assert the router navigates to `/article` with no ConfirmDialog ever rendered.
 17. **Session expiry mid-save mirrors and restores the draft** — from Unsaved changes with body
     "Paragraph added just before the session expired.", save; resolve `PATCH` 401; assert
-    `sessionStorage` holds that body keyed by article id 12, and the router navigates to
+    `sessionStorage` holds that body keyed by user id and article id 12 (key
+    `renewcms:article-draft:{userId}:12`, a JSON object with title, body, search fields and the
+    mirror time), and the router navigates to
     `/login?redirect=/article/12/edit&reason=expired`. Then, simulating the return trip, mount
     EditorPage again at `/article/12/edit` with `GET /v1/article/12` resolving 200 with a body
     that lacks that paragraph; assert the rendered body is the restored sessionStorage draft
     (with the paragraph) and SaveStatus reads "Unsaved changes".
 18. **Not found on load** — mock `GET /v1/article/9999` resolving 404; mount at
-    `/article/9999/edit`; assert only the error state renders (title "This article doesn't
-    exist.", action "All articles"), with no breadcrumb-title/SaveStatus/Save/PublishControl/
-    ArticleEditor; click "All articles"; assert the router navigates to `/article`.
+    `/article/9999/edit`; assert only the Version unavailable state renders (title "This version
+    isn't available", action "Back to Articles"), with no header/SaveStatus/Save/PublishControl/
+    ArticleEditor; click "Back to Articles"; assert the router navigates to `/article`.
 
 ## Visual (manual verification — desktop and mobile, light and dark)
 
@@ -98,7 +99,7 @@ reusing the sample data below and a fixed `now` of "2026-09-26T11:02:00Z" (updat
       "N words · 4,318 characters", details panel (Created/Updated/ID/Images/Public API URL).
 - [ ] Unsaved changes: "Unsaved changes" SaveStatus, enabled Save, "Save and publish".
 - [ ] Saving: "Saving…" SaveStatus, disabled Save.
-- [ ] Save failed: "Save failed" with Retry, per the SaveStatus error spec.
+- [ ] Save failed: "Save failed" with the "Try saving again" primary, per the SaveStatus error spec.
 - [ ] Very long article: count "19,845 words · 120,000 characters", neutral, Save/Publish enabled.
 - [ ] Preview: read-only rendered title and body in the content scale, toolbar hidden.
 - [ ] Offline: SaveStatus shows the wifi-off icon and reads "Waiting for connection", disabled