Update architecture

Dockerfile

@@ -6,7 +6,7 @@ WORKDIR /app
 COPY go.mod go.sum ./
 RUN go mod download
 
-COPY main.go ./
+COPY main.go index.html favicon.ico ./
 RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o nats-ui main.go
 
 # Runtime stage
@@ -17,8 +17,7 @@ RUN apk --no-cache add ca-certificates tzdata && \
 
 WORKDIR /app
 
-COPY --from=builder /app/nats-ui .
-COPY index.html ./
+COPY --from=builder /app/nats-ui ./
 
 # config.yaml is in .gitignore; create default in image (override via volume at runtime)
 RUN printf '%s\n' \

main.go

@@ -1,14 +1,15 @@
 package main
 
 import (
+    "embed"
     "encoding/base64"
     "encoding/json"
     "fmt"
     "io"
+    "io/fs"
     "log"
     "net/http"
     "os"
-    "path/filepath"
     "strings"
     "sync"
     "time"
@@ -18,6 +19,9 @@ import (
     "gopkg.in/yaml.v3"
 )
 
+//go:embed index.html favicon.ico
+var staticFS embed.FS
+
 var upgrader = websocket.Upgrader{
     CheckOrigin: func(r *http.Request) bool {
         return true
@@ -305,23 +309,14 @@ func main() {
             }
         }()
     }
-    // Определяем путь к index.html
-    indexPath := "index.html"
-    if _, err := os.Stat(indexPath); os.IsNotExist(err) {
-        // Если не найден в текущей директории, пробуем рядом с исполняемым файлом
-        exePath, err := os.Executable()
-        if err == nil {
-            exeDir := filepath.Dir(exePath)
-            indexPath = filepath.Join(exeDir, "index.html")
-        }
-    }
-    
+    staticContent, _ := fs.Sub(staticFS, ".")
+    staticHandler := http.FileServer(http.FS(staticContent))
     http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-        if r.URL.Path != "/" {
-            http.NotFound(w, r)
-            return
+        if r.URL.Path == "/" {
+            r = r.Clone(r.Context())
+            r.URL.Path = "/index.html"
         }
-        http.ServeFile(w, r, indexPath)
+        staticHandler.ServeHTTP(w, r)
     })
     http.HandleFunc("/api/messages", func(w http.ResponseWriter, r *http.Request) {
         w.Header().Set("Content-Type", "application/json")