refactor: add upload size to account pin response

api/s5/messages.go

@@ -127,5 +127,6 @@ type AccountPinResponse struct {
 
 type AccountPin struct {
 	Hash     string `json:"hash"`
+	Size     uint64 `json:"size"`
 	MimeType string `json:"mime_type"`
 }

api/s5/s5.go

@@ -858,6 +858,7 @@ func (s *S5API) accountPins(jc jape.Context) {
 		}
 		pins[i] = AccountPin{
 			Hash:     base64Url,
+			Size:     pin.Upload.Size,
 			MimeType: pin.Upload.MimeType,
 		}
 	}

api/s5/swagger.yaml

@@ -911,10 +911,13 @@ components:
             type: object
             required:
                 - hash
+                - size
                 - mime_type
             properties:
                 hash:
                     type: string
+                size:
+                    type: integer
                 mime_type:
                     type: string
         RegistryQueryResponse: