Display BanGUI version in dashboard and server config UI

frontend/src/components/__tests__/ServerStatusBar.test.tsx

@@ -41,6 +41,7 @@ describe("ServerStatusBar", () => {
   it("shows a spinner while the initial load is in progress", () => {
     mockedUseServerStatus.mockReturnValue({
       status: null,
+      banguiVersion: null,
       loading: true,
       error: null,
       refresh: vi.fn(),
@@ -59,6 +60,7 @@ describe("ServerStatusBar", () => {
         total_bans: 10,
         total_failures: 5,
       },
+      banguiVersion: "1.1.0",
       loading: false,
       error: null,
       refresh: vi.fn(),
@@ -76,6 +78,7 @@ describe("ServerStatusBar", () => {
         total_bans: 0,
         total_failures: 0,
       },
+      banguiVersion: "1.1.0",
       loading: false,
       error: null,
       refresh: vi.fn(),
@@ -93,6 +96,7 @@ describe("ServerStatusBar", () => {
         total_bans: 0,
         total_failures: 0,
       },
+      banguiVersion: "1.2.3",
       loading: false,
       error: null,
       refresh: vi.fn(),
@@ -101,6 +105,24 @@ describe("ServerStatusBar", () => {
     expect(screen.getByText("v1.2.3")).toBeInTheDocument();
   });
 
+  it("renders a BanGUI version badge", () => {
+    mockedUseServerStatus.mockReturnValue({
+      status: {
+        online: true,
+        version: "1.2.3",
+        active_jails: 1,
+        total_bans: 0,
+        total_failures: 0,
+      },
+      banguiVersion: "9.9.9",
+      loading: false,
+      error: null,
+      refresh: vi.fn(),
+    });
+    renderBar();
+    expect(screen.getByText("BanGUI v9.9.9")).toBeInTheDocument();
+  });
+
   it("does not render the version element when version is null", () => {
     mockedUseServerStatus.mockReturnValue({
       status: {
@@ -110,6 +132,7 @@ describe("ServerStatusBar", () => {
         total_bans: 0,
         total_failures: 0,
       },
+      banguiVersion: "1.2.3",
       loading: false,
       error: null,
       refresh: vi.fn(),
@@ -128,6 +151,7 @@ describe("ServerStatusBar", () => {
         total_bans: 21,
         total_failures: 99,
       },
+      banguiVersion: "1.0.0",
       loading: false,
       error: null,
       refresh: vi.fn(),
@@ -143,6 +167,7 @@ describe("ServerStatusBar", () => {
   it("renders an error message when the status fetch fails", () => {
     mockedUseServerStatus.mockReturnValue({
       status: null,
+      banguiVersion: null,
       loading: false,
       error: "Network error",
       refresh: vi.fn(),