Fix logo assets and license heartbeat

cmd/server/main.go

@@ -120,6 +120,7 @@ func main() {
 		}
 	}()
 	go services.Boot()
+	go handler.RunLicenseHeartbeatLoop(services.Context(), services)
 	go services.TelegramBot.StartPolling(context.Background())
 
 	// Graceful shutdown.
@@ -201,6 +202,12 @@ func serveSPA(r *gin.Engine, webDir string) {
 		c.Next()
 	})
 	assets.Static("/", filepath.Join(webDir, "assets"))
+	brand := r.Group("/brand")
+	brand.Use(func(c *gin.Context) {
+		c.Header("Cache-Control", "public, max-age=86400")
+		c.Next()
+	})
+	brand.Static("/", filepath.Join(webDir, "brand"))
 	for _, icon := range []string{"/favicon.ico", "/favicon.svg"} {
 		iconPath := filepath.Join(webDir, strings.TrimPrefix(icon, "/"))
 		r.GET(icon, serveNoCacheFile(iconPath))

cmd/server/main_test.go

@@ -52,12 +52,18 @@ func TestServeSPAServesAssetsImmutableAndBypassesAPIRoutes(t *testing.T) {
 	if err := os.MkdirAll(filepath.Join(webDir, "assets"), 0o755); err != nil {
 		t.Fatal(err)
 	}
+	if err := os.MkdirAll(filepath.Join(webDir, "brand"), 0o755); err != nil {
+		t.Fatal(err)
+	}
 	if err := os.WriteFile(filepath.Join(webDir, "index.html"), []byte("index"), 0o644); err != nil {
 		t.Fatal(err)
 	}
 	if err := os.WriteFile(filepath.Join(webDir, "assets", "app.js"), []byte("console.log('ok')"), 0o644); err != nil {
 		t.Fatal(err)
 	}
+	if err := os.WriteFile(filepath.Join(webDir, "brand", "mediastationgo-logo.svg"), []byte("<svg></svg>"), 0o644); err != nil {
+		t.Fatal(err)
+	}
 
 	router := gin.New()
 	serveSPA(router, webDir)
@@ -72,6 +78,16 @@ func TestServeSPAServesAssetsImmutableAndBypassesAPIRoutes(t *testing.T) {
 		t.Fatalf("asset Cache-Control = %q, want immutable", got)
 	}
 
+	brandReq := httptest.NewRequest(http.MethodGet, "/brand/mediastationgo-logo.svg", nil)
+	brandResp := httptest.NewRecorder()
+	router.ServeHTTP(brandResp, brandReq)
+	if brandResp.Code != http.StatusOK {
+		t.Fatalf("brand asset status = %d, want 200", brandResp.Code)
+	}
+	if strings.Contains(brandResp.Body.String(), "index") {
+		t.Fatalf("brand asset should not serve SPA index: %q", brandResp.Body.String())
+	}
+
 	for _, path := range []string{
 		"/api/missing",
 		"/emby",