feat(web): ambient banner, snooze/focus actions, settings controls

internal/web/settings_handlers_test.go

@@ -6,8 +6,10 @@ import (
 	"net/http/httptest"
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 
+	"keel/internal/harness"
 	"keel/internal/settings"
 )
 
@@ -220,3 +222,30 @@ func TestBrowseBadDirIs400(t *testing.T) {
 		t.Fatalf("status = %d, want 400", w.Code)
 	}
 }
+
+func TestPostSettingsPreservesBlankAmbientFields(t *testing.T) {
+	h := harness.New(harness.Services{}, map[string]harness.Factory{})
+	s := NewServer(h)
+	dir := t.TempDir()
+	path := filepath.Join(dir, "settings.json")
+	current := settings.Settings{AIBackend: "claude", AmbientMode: "status", AmbientCadenceSecs: 120}
+	s.SetSettings(path, current, func(settings.Settings) error { return nil })
+
+	// A POST that omits the ambient fields must not blank them.
+	body := `{"ai_backend":"claude"}`
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodPost, "/settings", strings.NewReader(body))
+	req.Header.Set("Content-Type", "application/json")
+	s.Router().ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("status = %d body = %s", w.Code, w.Body.String())
+	}
+	saved, err := settings.Load(path)
+	if err != nil {
+		t.Fatalf("load: %v", err)
+	}
+	if saved.AmbientMode != "status" || saved.AmbientCadenceSecs != 120 {
+		t.Fatalf("ambient fields not preserved: mode=%q cadence=%d", saved.AmbientMode, saved.AmbientCadenceSecs)
+	}
+}