[lesnik512]

Long project paths took up most of each service line, and the part that tells services apart sat at the end. In a group run every service usually starts with the same group, so the page now leaves that part out: shop/api shows as api, and hovering the name shows the full path.

Changes:

• The page finds the longest run of leading path segments that every listed service shares and strips it from the service names and from the "not in this report" projects that start with it. The last segment always stays.
• With a single service nothing is stripped, since there is nothing to compare it with.
• The GitLab link inside an open service and everything in the Release column keep full paths, so copied text is unchanged.
• An ellipsis at the end was the first idea, but it cuts the distinguishing part (team/backend/paym… for both payments-api and payments-worker).

Tests: test_demo_lists_its_services_and_picks_tags_for_an_issue now expects admin, api, web, worker with shop/admin as the title, and failed before the change. _demo_service finds a service by its title. The single-service test still expects team/svc. just test-ci, just test-smoke and just lint-ci pass.