feat: add services and separate further

internal/server/api/assets/body.go

@@ -0,0 +1,9 @@
+package assets
+
+import "time"
+
+type KeyRequestBody struct {
+	Name string `json:"name"`
+	// post request must contain valid: RFC3339 timestamp
+	ExpiresAt time.Time `json:"expiresAt"`
+}