Fix Docker build context for entrypoint

Author: tces1

.gitignore

@@ -1,5 +1,5 @@
 .cache/
-emby-transcoder
+/emby-transcoder
 config.local.json
 dist/
 tmp/

cmd/emby-transcoder/main.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"net/http"
+
+	"emby-transcoder/internal/config"
+	"emby-transcoder/internal/proxy"
+)
+
+func main() {
+	configPath := flag.String("config", "", "path to config JSON file")
+	flag.Parse()
+
+	cfg, err := config.Load(*configPath)
+	if err != nil {
+		log.Fatalf("load config: %v", err)
+	}
+
+	handler, err := proxy.New(cfg)
+	if err != nil {
+		log.Fatalf("create proxy: %v", err)
+	}
+
+	log.Printf("EmbyTranscoder listening on %s, upstream %s", cfg.Server.Listen, cfg.Upstream.URL)
+	if err := http.ListenAndServe(cfg.Server.Listen, handler); err != nil {
+		log.Fatal(err)
+	}
+}