feat(cli): positional account grammar, account show, TTY remove confirm; drop whitelist flags

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/cli/account_show_test.go

@@ -0,0 +1,36 @@
+package cli
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestAccountShow(t *testing.T) {
+	adminEnv(t)
+	run(t, "account", "add", "shown", "--mode", "RW",
+		"--imap-host", "imap.x.com", "--imap-port", "993",
+		"--smtp-host", "smtp.x.com", "--smtp-port", "465",
+		"--username", "u@x.com", "--password", "secret", "--from", "me@x.com")
+	code, out, _ := run(t, "account", "show", "shown")
+	if code != 0 {
+		t.Fatalf("show exit=%d", code)
+	}
+	for _, want := range []string{"shown", "RW", "imap.x.com:993", "smtp.x.com:465", "u@x.com", "me@x.com"} {
+		if !strings.Contains(out, want) {
+			t.Fatalf("show missing %q:\n%s", want, out)
+		}
+	}
+	if strings.Contains(out, "secret") {
+		t.Fatalf("show must never print the password:\n%s", out)
+	}
+}
+
+func TestAccountShowMissingName(t *testing.T) {
+	adminEnv(t)
+	if code, _, _ := run(t, "account", "show"); code != 2 {
+		t.Fatal("show without a name must be a usage error")
+	}
+	if code, _, _ := run(t, "account", "show", "nope"); code == 0 {
+		t.Fatal("show of a missing account must be non-zero")
+	}
+}