Add secret mode toggle command and API

src/tests/test_cli_toggle_secret_mode.py

@@ -0,0 +1,44 @@
+import types
+from types import SimpleNamespace
+from typer.testing import CliRunner
+
+from seedpass.cli import app
+from seedpass import cli
+
+runner = CliRunner()
+
+
+def _make_pm(called, enabled=False, delay=45):
+    cfg = SimpleNamespace(
+        get_secret_mode_enabled=lambda: enabled,
+        get_clipboard_clear_delay=lambda: delay,
+        set_secret_mode_enabled=lambda v: called.setdefault("enabled", v),
+        set_clipboard_clear_delay=lambda v: called.setdefault("delay", v),
+    )
+    pm = SimpleNamespace(
+        config_manager=cfg,
+        secret_mode_enabled=enabled,
+        clipboard_clear_delay=delay,
+        select_fingerprint=lambda fp: None,
+    )
+    return pm
+
+
+def test_toggle_secret_mode_updates(monkeypatch):
+    called = {}
+    pm = _make_pm(called)
+    monkeypatch.setattr(cli, "PasswordManager", lambda: pm)
+    result = runner.invoke(app, ["config", "toggle-secret-mode"], input="y\n10\n")
+    assert result.exit_code == 0
+    assert called == {"enabled": True, "delay": 10}
+    assert "Secret mode enabled." in result.stdout
+
+
+def test_toggle_secret_mode_keep(monkeypatch):
+    called = {}
+    pm = _make_pm(called, enabled=True, delay=30)
+    monkeypatch.setattr(cli, "PasswordManager", lambda: pm)
+    result = runner.invoke(app, ["config", "toggle-secret-mode"], input="\n\n")
+    assert result.exit_code == 0
+    assert called == {"enabled": True, "delay": 30}
+    assert "Secret mode enabled." in result.stdout