Remove unused captured state and orphan helpers

internal/domain/domain.go

@@ -184,7 +184,6 @@ type Backend struct {
 	SmokeTests       *BackendSmokeTestConfig
 	ConcurrencyLimit int
 	QueueCapacity    int
-	QueueCapacitySet bool
 }
 
 // BackendCapacityPolicy describes normalized run and generation capacity for

internal/domain/resource_identity.go

@@ -31,14 +31,6 @@ func qualifyResourceID(id, namespace string) (string, bool) {
 	return namespace + "/" + id, true
 }
 
-func resourceNamespaceFromID(id string) (string, bool) {
-	if !validResourceID(id) || !strings.Contains(id, "/") {
-		return "", false
-	}
-	namespace, _, _ := strings.Cut(id, "/")
-	return namespace, true
-}
-
 // IsValidResourceID reports whether id is an unqualified resource ID or one
 // valid namespace/local-ID pair.
 func IsValidResourceID(id string) bool { return validResourceID(id) }

internal/domain/resource_identity_test.go

@@ -86,25 +86,3 @@ func TestQualifyResourceID(t *testing.T) {
 		})
 	}
 }
-
-func TestResourceNamespaceFromID(t *testing.T) {
-	tests := []struct {
-		name      string
-		id        string
-		namespace string
-		wantOK    bool
-	}{
-		{name: "qualified", id: "team/item", namespace: "team", wantOK: true},
-		{name: "same-prefix namespace stays distinct", id: "team-extra/item", namespace: "team-extra", wantOK: true},
-		{name: "unqualified", id: "item", wantOK: false},
-		{name: "malformed", id: "team/sub/item", wantOK: false},
-	}
-	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
-			got, ok := resourceNamespaceFromID(test.id)
-			if got != test.namespace || ok != test.wantOK {
-				t.Fatalf("resourceNamespaceFromID(%q) = (%q, %t), want (%q, %t)", test.id, got, ok, test.namespace, test.wantOK)
-			}
-		})
-	}
-}