feat(campaigns): add Case Quick Access selector

tests/test_manifest_navigation.py

@@ -73,3 +73,21 @@ def test_reusable_template_library_is_not_owned_by_campaign() -> None:
     assert "/templates" not in {item.path for item in manifest.nav_items}
     assert "/templates" not in {item.path for item in manifest.frontend.nav_items}
     assert "/templates" not in {route.path for route in manifest.frontend.routes}
+
+
+def test_quick_access_selects_exact_campaigns_only_for_active_cases() -> None:
+    manifest = get_manifest()
+    assert manifest.frontend is not None
+
+    tool = next(
+        item
+        for item in manifest.frontend.quick_access_tools
+        if item.id == "campaigns.select"
+    )
+    assert tool.availability == "active_object"
+    assert tool.accepted_reference_kinds == ("cases.case",)
+    assert tool.returned_reference_kinds == ("campaigns.campaign",)
+    assert tool.modes == ("select",)
+    assert "campaigns.workflow.link-exact-campaign-to-case" in {
+        topic.id for topic in manifest.documentation
+    }