pi-agent: Implement mature Profile editor

internal/tui/foundation_test.go

@@ -68,7 +68,7 @@ func TestCompleteModelResizePreservesValidSelectionAndFormFocus(t *testing.T) {
 	for _, size := range []struct{ width, height int }{{60, 16}, {120, 36}, {80, 24}} {
 		model = resize(model, size.width, size.height)
 		view := model.View()
-		assertUsableFrame(t, view, size.width, size.height, "> Bypass:", "Ctrl+S: save")
+		assertUsableFrame(t, view, size.width, size.height, "> Bypass [focused]:", "Ctrl+S: save")
 	}
 }