chore: scaffold project workbench

backend/internal/config/config.go

@@ -0,0 +1,26 @@
+package config
+
+import "os"
+
+type Config struct {
+	Env         string
+	DatabaseURL string
+	StorageDir  string
+	SystemAIKey string
+}
+
+func Load() Config {
+	return Config{
+		Env:         getenv("APP_ENV", "development"),
+		DatabaseURL: getenv("DATABASE_URL", "postgres://agent:agent@localhost:5432/agent?sslmode=disable"),
+		StorageDir:  getenv("STORAGE_DIR", "./data/files"),
+		SystemAIKey: os.Getenv("SYSTEM_AI_KEY"),
+	}
+}
+
+func getenv(key string, fallback string) string {
+	if value := os.Getenv(key); value != "" {
+		return value
+	}
+	return fallback
+}