fix: restore ArchiveTeam Warrior as a proper integration

The widget-only integrations refactor incorrectly removed the
ArchiveTeam Warrior integration entirely. It only needed to be
excluded from auto-seeding (by removing defaultUrl), not deleted.

This restores the integration class, reverts the widget/router/handler
to use integration middleware, and removes archiveTeamWarrior from the
widget-only-integrations migration.

packages/translation/src/lang/en.json

@@ -1755,9 +1755,6 @@
       "name": "ArchiveTeam Warrior",
       "description": "Monitor ArchiveTeam Warrior status, projects, and active archival jobs.",
       "option": {
-        "url": {
-          "label": "Warrior URL"
-        },
         "showBroadcastMessage": {
           "label": "Show broadcast messages"
         }