first commit

internal/config/config.go

@@ -0,0 +1,18 @@
+package config
+
+import (
+	"fmt"
+	"os"
+)
+
+type Config struct {
+	DatabaseURL string
+}
+
+func Load() (*Config, error) {
+	url := os.Getenv("DATABASE_URL")
+	if url == "" {
+		return nil, fmt.Errorf("DATABASE_URL is required")
+	}
+	return &Config{DatabaseURL: url}, nil
+}