chore: add a bit more logging to issues with datastore

internal/datastore/api/plans.go

@@ -73,7 +73,7 @@ func (a *API) PutPlanHandler(c echo.Context) error {
 	content = []byte(request.Plan)
 	err = a.Storage.PutPlan(namespace, layer, run, attempt, format, content)
 	if err != nil {
-		return c.String(http.StatusInternalServerError, "could not put logs, there's an issue with the storage backend")
+		return c.String(http.StatusInternalServerError, "could not put logs, there's an issue with the storage backend: "+err.Error())
 	}
 	return c.NoContent(http.StatusOK)
 }

internal/datastore/client/client.go

@@ -130,7 +130,11 @@ func (c *DefaultClient) PutPlan(namespace string, layer string, run string, atte
 	}
 	defer resp.Body.Close()
 	if resp.StatusCode != http.StatusOK {
-		return fmt.Errorf("could not put plan, there's an issue with the storage backend")
+		message, err := io.ReadAll(resp.Body)
+		if err != nil {
+			return fmt.Errorf("could not put plan, there's an issue reading the response from datastore")
+		}
+		return fmt.Errorf("could not put plan, there's an issue with the storage backend: %s", string(message))
 	}
 	return nil
 }