fix(ui): honor OBOL_NONINTERACTIVE on a real TTY

internal/ui/prompt.go

@@ -11,9 +11,9 @@ import (
 )
 
 // isInteractive returns true if prompts should be shown.
-// Returns false in JSON mode or when stdin is not a terminal.
+// Returns false in JSON mode, when not a TTY, or when OBOL_NONINTERACTIVE=true.
 func (u *UI) isInteractive() bool {
-	return !u.IsJSON() && u.IsTTY()
+	return !u.IsJSON() && u.IsTTY() && os.Getenv("OBOL_NONINTERACTIVE") != "true"
 }
 
 // Confirm asks a yes/no question, returns true for "y"/"yes".

internal/ui/prompt_test.go

@@ -0,0 +1,33 @@
+package ui
+
+import (
+	"bytes"
+	"testing"
+)
+
+func TestIsInteractive_OBOLNonInteractive(t *testing.T) {
+	u := NewForTest(&bytes.Buffer{}, &bytes.Buffer{})
+	u.isTTY = true // force TTY so only the env guard can suppress interactivity
+
+	if !u.isInteractive() {
+		t.Fatal("isInteractive() = false with TTY, human output, and OBOL_NONINTERACTIVE unset; want true")
+	}
+
+	t.Setenv("OBOL_NONINTERACTIVE", "true")
+	if u.isInteractive() {
+		t.Fatal("isInteractive() = true with OBOL_NONINTERACTIVE=true; want false")
+	}
+}
+
+func TestConfirm_OBOLNonInteractiveReturnsDefault(t *testing.T) {
+	u := NewForTest(&bytes.Buffer{}, &bytes.Buffer{})
+	u.isTTY = true
+	t.Setenv("OBOL_NONINTERACTIVE", "true")
+
+	if got := u.Confirm("proceed?", true); !got {
+		t.Fatalf("Confirm(defaultYes=true) = %v; want true without reading stdin", got)
+	}
+	if got := u.Confirm("proceed?", false); got {
+		t.Fatalf("Confirm(defaultYes=false) = %v; want false without reading stdin", got)
+	}
+}