feat: project scaffold, config loading, skeleton main

cmd/server/main.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"log/slog"
+	"os"
+
+	"aiaa-notification-service/internal/config"
+)
+
+func main() {
+	logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}))
+	slog.SetDefault(logger)
+
+	cfg, err := config.Load("config/config.yaml")
+	if err != nil {
+		slog.Error("failed to load config", "error", err)
+		os.Exit(1)
+	}
+
+	slog.Info("config loaded", "port", cfg.Server.Port)
+}