feat: GetSecret returns full item (all fields: username/uri/notes/fields)

internal/handlers/handlers.go

@@ -108,10 +108,7 @@ func (h *Handler) GetSecret(c *fiber.Ctx) error {
 		})
 	}
 
-	return c.JSON(fiber.Map{
-		"name":  secretName,
-		"value": value,
-	})
+	return c.JSON(value.ToMap())
 }
 
 func parseUUIDQuery(field, raw string) (string, error) {