Add SemVer VERSION, Jenkins CI/CD, and release 0.1.1.

Ship Harbor/Hub push with latest+version tags, deploy to ovirt.devops.org.ru, and show the package version badge in Help → About.

app/web/routes.py

@@ -12,6 +12,7 @@ from app.db.pool import AsyncpgDatabase
 from app.dependencies import get_database
 from app.ovirt.demo_datacenter import CLUSTER_SIZES, normalize_cluster_size, seed_ovirt_demo
 from app.ovirt.seed import clear_ovirt_state, ovirt_demo_summary, seed_ovirt
+from app.version import get_app_version
 from app.web.assets import console_html
 
 router = APIRouter(tags=["Simulator"])
@@ -47,6 +48,7 @@ async def ui_versions(request: Request) -> JSONResponse:
     majors = ovirt_series_majors(runtime_version)
     return JSONResponse(
         {
+            "app_version": get_app_version(),
             "majors": majors,
             "runtime_version": runtime_version,
             "default_major": next(