Make dashboard updateable

config_test.go

@@ -19,7 +19,8 @@ func TestLoadConfigUsesDefaultsWhenOptionalFileIsMissing(t *testing.T) {
 		got.RefreshInterval.Duration != want.RefreshInterval.Duration ||
 		got.Paths.Scroll != want.Paths.Scroll ||
 		got.Display.FoldResolved != want.Display.FoldResolved ||
-		got.Display.CompactReviews != want.Display.CompactReviews {
+		got.Display.CompactReviews != want.Display.CompactReviews ||
+		got.Editing.Mode != "vim" {
 		t.Fatalf("defaults = %#v, want %#v", got, want)
 	}
 }
@@ -52,6 +53,9 @@ within_status = "timestamp"
 enabled = false
 max_age = "48h"
 directory = "/tmp/gh-threads-cache"
+
+[editing]
+mode = "standard"
 `
 	if err := os.WriteFile(path, []byte(content), 0o600); err != nil {
 		t.Fatal(err)
@@ -71,7 +75,8 @@ directory = "/tmp/gh-threads-cache"
 		!got.Paths.Scroll || got.Paths.ScrollInterval.Duration != 125*time.Millisecond ||
 		strings.Join(got.Threads.StatusOrder, ",") != "resolved,unresolved,outdated" ||
 		got.Threads.WithinStatus != "timestamp" || got.Cache.Enabled ||
-		got.Cache.MaxAge.Duration != 48*time.Hour || got.Cache.Directory != "/tmp/gh-threads-cache" {
+		got.Cache.MaxAge.Duration != 48*time.Hour || got.Cache.Directory != "/tmp/gh-threads-cache" ||
+		got.Editing.Mode != "standard" {
 		t.Fatalf("config = %#v", got)
 	}
 }
@@ -164,3 +169,11 @@ func TestValidateConfigRejectsInvalidDashboardMode(t *testing.T) {
 		t.Fatal("unknown dashboard mode was accepted")
 	}
 }
+
+func TestValidateConfigRejectsInvalidEditorMode(t *testing.T) {
+	config := defaultConfig()
+	config.Editing.Mode = "emacs"
+	if err := validateConfig(config); err == nil {
+		t.Fatal("unknown editor mode was accepted")
+	}
+}