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/core/entities/NoteEntityService.ts

@@ -490,6 +490,7 @@ export class NoteEntityService implements OnModuleInit {
 
 			...(opts.detail ? {
 				clippedCount: note.clippedCount,
+				processErrors: note.processErrors,
 
 				reply: note.replyId ? this.pack(note.reply ?? note.replyId, me, {
 					detail: false,