dankbar: trace goth wings and adjacent-bar seams in the border outline

fixes #3502

core/internal/server/sysupdate/executor.go

@@ -140,8 +140,11 @@ exit "$dms_update_status"`
 	var argv []string
 	execFlag := "-e"
 	switch term {
-	case "kitty", "alacritty", "wezterm":
+	case "kitty", "alacritty":
 		argv = []string{term, "--class", appID, "-T", title}
+	case "wezterm":
+		argv = []string{term, "start", "--always-new-process", "--class", appID}
+		execFlag = "--"
 	case "foot":
 		argv = []string{term, "--app-id=" + appID, "--title=" + title}
 	case "ghostty":

core/internal/server/sysupdate/executor_test.go

@@ -4,10 +4,36 @@ import (
 	"errors"
 	"os"
 	"os/exec"
+	"slices"
 	"strings"
 	"testing"
 )
 
+func TestTerminalWrapperWezterm(t *testing.T) {
+	for _, tt := range []struct {
+		name      string
+		extraArgs []string
+		want      []string
+	}{
+		{
+			name: "update",
+			want: []string{"wezterm", "start", "--always-new-process", "--class", "com.danklinux.dms", "--", "sh", "-c"},
+		},
+		{
+			name:      "extra arguments",
+			extraArgs: []string{"--cwd", "/tmp/system update"},
+			want:      []string{"wezterm", "start", "--always-new-process", "--class", "com.danklinux.dms", "--cwd", "/tmp/system update", "--", "sh", "-c"},
+		},
+	} {
+		t.Run(tt.name, func(t *testing.T) {
+			argv := wrapInTerminal("wezterm", "Test", "true", tt.extraArgs)
+			if len(argv) != len(tt.want)+1 || !slices.Equal(argv[:len(argv)-1], tt.want) {
+				t.Fatalf("argv = %q, want %q followed by the update script", argv, tt.want)
+			}
+		})
+	}
+}
+
 func TestTerminalWrapperPreservesExitStatus(t *testing.T) {
 	for _, tt := range []struct {
 		command string