feat(edit): remove all links command and context menu (#539) (#1213)

* feat(edit): remove all links command and context menu (#539)

- Expose 'edit.remove_links' and 'edit.remove_all_links' commands to remove all links across the document or on specified pages.
- Add right-click context menu options for links: Properties, Delete, and Remove all links in both Link tool and Select tool modes.
- Extend automation tool 'links_remove' with optional 'pages' parameter and removal count.
- Add notification feedback in UI for link deletion.
- Mark 'edit.remove-all-links' as shipped in Parity with evidence tests.
- Add unit and integration tests covering automation, engine, and UI undo/redo.

* Remove all links: one command id, catalog rows, link menu only on a link

- Drop the duplicate edit.remove_all_links command (same label as the
  existing edit.remove_links, so it showed twice); edit.remove_links now
  runs remove_all_links with its toast.
- Add the toast strings (No links to remove, Removed 1 link, Removed {n}
  links) to all 20 catalogs.
- The canvas context menu shows the link items only when the right-click
  hit a link (LinkView::context, set per right-click), so a link left
  selected no longer takes over the comments menu, and the Link tool no
  longer replaces the comments menu away from links. Regression test.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

* Restore the PR's links_remove pages test (lost with the workdir conflict)

Co-Authored-By: Claude Opus 5.5 <[email protected]>

---------

Co-authored-by: Brandon Thomas <[email protected]>
Co-authored-by: Claude Opus 5.5 <[email protected]>

parity/acrobat-features.toml

@@ -2211,11 +2211,17 @@ title = "Remove all links"
 area = "C"
 tier = "P2"
 milestone = "M7"
-status = "planned"
-commands = []
-tools = []
-evidence = []
-notes = ""
+status = "shipped"
+commands = ["edit.remove_links"]
+tools = ["links_remove"]
+evidence = [
+    "crates/engine/src/tests.rs::links_from_urls_and_link_edits",
+    "crates/automation/tests/automation.rs::links_through_tools",
+    "crates/annot/src/tests.rs::links_are_added_edited_listed_and_removed",
+    "crates/ui-egui/tests/ui_group/pdf_links.rs::removing_all_links_and_undo",
+    "crates/ui-egui/tests/ui_group/pdf_links.rs::the_link_context_menu_shows_only_for_a_right_click_on_a_link",
+]
+notes = "removes all link annotations across the document or on specified pages (links_remove pages); a right-click on a link offers Properties, Delete and Remove all links; undoable, with a toast giving the count"
 
 [[feature]]
 id = "edit.action-goto"