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/models/Instance.ts

@@ -164,6 +164,15 @@ export class MiInstance {
 	})
 	public rejectReports: boolean;
 
+	/**
+	 * If true, quote posts from this instance will be downgraded to normal posts.
+	 * The quote will be stripped and a process error will be generated.
+	 */
+	@Column('boolean', {
+		default: false,
+	})
+	public rejectQuotes: boolean;
+
 	@Column('varchar', {
 		length: 16384, default: '',
 	})

packages/backend/src/models/Note.ts

@@ -203,6 +203,17 @@ export class MiNote {
 	@JoinColumn()
 	public channel: MiChannel | null;
 
+	/**
+	 * List of non-fatal errors encountered while processing (creating or updating) this note.
+	 * Entries can be a translation key (which will be queried from the "_processErrors" section) or a raw string.
+	 * Errors will be displayed to the user when viewing the note.
+	 */
+	@Column('text', {
+		array: true,
+		nullable: true,
+	})
+	public processErrors: string[] | null;
+
 	//#region Denormalized fields
 	@Index()
 	@Column('varchar', {

packages/backend/src/models/User.ts

@@ -348,6 +348,15 @@ export class MiUser {
 	})
 	public mandatoryCW: string | null;
 
+	/**
+	 * If true, quote posts from this user will be downgraded to normal posts.
+	 * The quote will be stripped and a process error will be generated.
+	 */
+	@Column('boolean', {
+		default: false,
+	})
+	public rejectQuotes: boolean;
+
 	constructor(data: Partial<MiUser>) {
 		if (data == null) return;
 

packages/backend/src/models/json-schema/federation-instance.ts

@@ -126,6 +126,11 @@ export const packedFederationInstanceSchema = {
 			optional: false,
 			nullable: false,
 		},
+		rejectQuotes: {
+			type: 'boolean',
+			optional: false,
+			nullable: false,
+		},
 		moderationNote: {
 			type: 'string',
 			optional: true, nullable: true,

packages/backend/src/models/json-schema/note.ts

@@ -256,6 +256,14 @@ export const packedNoteSchema = {
 			type: 'number',
 			optional: true, nullable: false,
 		},
+		processErrors: {
+			type: 'array',
+			optional: true, nullable: true,
+			items: {
+				type: 'string',
+				optional: false, nullable: false,
+			},
+		},
 
 		myReaction: {
 			type: 'string',

packages/backend/src/models/json-schema/user.ts

@@ -445,6 +445,10 @@ export const packedUserDetailedNotMeOnlySchema = {
 			type: 'boolean',
 			nullable: false, optional: true,
 		},
+		rejectQuotes: {
+			type: 'boolean',
+			nullable: false, optional: true,
+		},
 		//#region relations
 		isFollowing: {
 			type: 'boolean',