Fix Dockerfile to include language files

Dockerfile

@@ -1,7 +1,7 @@
 # =========================================
 #  STAGE 1: Build Fail2Ban UI Binary
 # =========================================
-FROM golang:1.22.9 AS builder
+FROM golang:1.23 AS builder
 
 WORKDIR /app
 
@@ -41,6 +41,7 @@ WORKDIR /config
 COPY --from=builder /app/fail2ban-ui /app/fail2ban-ui
 RUN chown fail2ban:0 /app/fail2ban-ui && chmod +x /app/fail2ban-ui
 COPY --from=builder /app/pkg/web/templates /app/templates
+COPY --from=builder /app/internal/locales /app/locales
 
 # Set environment variables
 ENV CONTAINER=true

cmd/server/main.go

@@ -32,12 +32,14 @@ func main() {
 	if container {
 		// In container, templates are assumed to be in /app/templates
 		router.LoadHTMLGlob("/app/templates/*")
+		router.Static("/locales", "/app/locales")
 	} else {
 		// When running locally, load templates from pkg/web/templates
 		router.LoadHTMLGlob("pkg/web/templates/*")
+		router.Static("/locales", "./internal/locales")
 	}
 
-	// Register all application routes, including the static file serving route for locales.
+	// Register all application routes, including the static files and templates.
 	web.RegisterRoutes(router)
 
 	printWelcomeBanner(serverPort)

pkg/web/routes.go

@@ -22,9 +22,6 @@ import (
 
 // RegisterRoutes sets up the routes for the Fail2ban UI.
 func RegisterRoutes(r *gin.Engine) {
-	// Serve static files for locales from the "internal/locales" directory.
-	// (This makes the translation files available under the /locales/ URL.)
-	r.Static("/locales", "./internal/locales")
 
 	// Render the dashboard
 	r.GET("/", IndexHandler)