feat: add panel update functionality via web GUI (#4117)

* feat: add panel update functionality via web GUI

* feat: enhance panel update notifications in web GUI

* feat: implement panel update modal and enhance translation strings

* fix design

1 files changed, 41 insertions, 0 deletions

diff --git a/web/service/panel_test.go b/web/service/panel_test.go
new file mode 100644
index 00000000..44e9ba34
--- /dev/null
+++ b/web/service/panel_test.go
@@ -0,0 +1,41 @@
+package service
+
+import "testing"
+
+func TestIsNewerVersion(t *testing.T) {
+	cases := []struct {
+		latest  string
+		current string
+		want    bool
+	}{
+		{"v2.9.4", "2.9.3", true},
+		{"v2.10.0", "2.9.9", true},
+		{"v2.9.3", "2.9.3", false},
+		{"v2.9.2", "2.9.3", false},
+		{"v3.0.0", "2.9.3", true},
+	}
+
+	for _, tc := range cases {
+		if got := isNewerVersion(tc.latest, tc.current); got != tc.want {
+			t.Fatalf("isNewerVersion(%q, %q) = %v, want %v", tc.latest, tc.current, got, tc.want)
+		}
+	}
+}
+
+func TestCompareVersionStringsRejectsUnexpectedFormats(t *testing.T) {
+	if _, ok := compareVersionStrings("latest", "2.9.3"); ok {
+		t.Fatal("expected non-semver latest tag to be rejected")
+	}
+	if _, ok := compareVersionStrings("v2.9", "2.9.3"); ok {
+		t.Fatal("expected short version to be rejected")
+	}
+}
+
+func TestShellQuote(t *testing.T) {
+	if got := shellQuote("/usr/bin/curl"); got != "'/usr/bin/curl'" {
+		t.Fatalf("unexpected quote result: %s", got)
+	}
+	if got := shellQuote("/tmp/a'b"); got != "'/tmp/a'\\''b'" {
+		t.Fatalf("unexpected quote result with single quote: %s", got)
+	}
+}