fix: dynamic workspaceId for no-geometry scan (was hardcoded 65)

- resolveWorkspacePk chain: explicit param -> GisUat DB -> ArcGIS layer query
- UI passes workspacePk from UAT selection to scan API
- Fixes: FELEACU (Cluj, workspace!=65) returning 0 immovables
- Better messaging: shows X total, Y with geometry, Z without
- Shows warning when 0 immovables found (workspace resolution failed)

src/app/api/eterra/export-bundle/route.ts

@@ -272,6 +272,7 @@ export async function POST(req: Request) {
             phase = ph;
             updatePhaseProgress(done, tot);
           },
+          // workspacePk will be auto-resolved from DB/ArcGIS inside the service
         },
       );