add "reject quotes" toggle at user and instance level

+ improve, cleanup, and de-duplicate quote resolution
+ add warning message when quote cannot be loaded
+ add "process error" framework to display warnings when a note cannot be correctly loaded from another instance

packages/backend/src/server/api/endpoints/notes/create.ts

@@ -143,6 +143,12 @@ export const meta = {
 			code: 'CONTAINS_TOO_MANY_MENTIONS',
 			id: '4de0363a-3046-481b-9b0f-feff3e211025',
 		},
+
+		quoteDisabledForUser: {
+			message: 'You do not have permission to create quote posts.',
+			code: 'QUOTE_DISABLED_FOR_USER',
+			id: '1c0ea108-d1e3-4e8e-aa3f-4d2487626153',
+		},
 	},
 } as const;
 
@@ -415,6 +421,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 						throw new ApiError(meta.errors.containsProhibitedWords);
 					} else if (e.id === '9f466dab-c856-48cd-9e65-ff90ff750580') {
 						throw new ApiError(meta.errors.containsTooManyMentions);
+					} else if (e.id === '1c0ea108-d1e3-4e8e-aa3f-4d2487626153') {
+						throw new ApiError(meta.errors.quoteDisabledForUser);
 					}
 				}
 				throw e;