build: temporarily replace vantage-shared with local checkout

server/go.mod

@@ -77,3 +77,8 @@ require (
 	google.golang.org/protobuf v1.34.2 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
+
+// TEMPORARY: vantage-shared is not yet released with license.FeatureMCP.
+// Points at the local sibling checkout so this branch can compile against it.
+// Must be removed and replaced with a real version pin before this branch merges.
+replace gitea.hostxtra.co.uk/vantage/vantage-shared => ../../vantage-shared