Add ordering for threads

config_test.go

@@ -40,6 +40,10 @@ thread_list_width_percent = 45
 [paths]
 scroll = true
 scroll_interval = "125ms"
+
+[threads]
+status_order = ["resolved", "unresolved", "outdated"]
+within_status = "timestamp"
 `
 	if err := os.WriteFile(path, []byte(content), 0o600); err != nil {
 		t.Fatal(err)
@@ -54,7 +58,9 @@ scroll_interval = "125ms"
 	if got.Theme != "light" || got.RefreshInterval.Duration != 25*time.Second ||
 		got.Repository != "owner/repo" || !got.ShowAll || got.Limit != 75 ||
 		got.Display.FoldResolved || got.Display.ThreadListWidthPercent != 45 ||
-		!got.Paths.Scroll || got.Paths.ScrollInterval.Duration != 125*time.Millisecond {
+		!got.Paths.Scroll || got.Paths.ScrollInterval.Duration != 125*time.Millisecond ||
+		strings.Join(got.Threads.StatusOrder, ",") != "resolved,unresolved,outdated" ||
+		got.Threads.WithinStatus != "timestamp" {
 		t.Fatalf("config = %#v", got)
 	}
 }
@@ -126,3 +132,16 @@ func TestValidateConfigRejectsUnsafeAnimationRate(t *testing.T) {
 		t.Fatal("unsafe path scrolling interval was accepted")
 	}
 }
+
+func TestValidateConfigRejectsInvalidThreadOrdering(t *testing.T) {
+	config := defaultConfig()
+	config.Threads.StatusOrder = []string{"unresolved", "resolved", "resolved"}
+	if err := validateConfig(config); err == nil {
+		t.Fatal("duplicate thread status was accepted")
+	}
+	config = defaultConfig()
+	config.Threads.WithinStatus = "author"
+	if err := validateConfig(config); err == nil {
+		t.Fatal("unknown within-status ordering was accepted")
+	}
+}