backend: increase requestId max size for GNU Social

GNU Social's follow request IDs are larger than the 128 character limit
of the follow_request.requestId column. This prevents follow requests
from GNU Social instances from being handled by Foundkey instances.

The solution is to make the requestId column larger.

Fixes #146

packages/backend/migration/1662943835603-larger-follow-request-ids.js

@@ -0,0 +1,12 @@
+export class largerFollowRequestIds1662943835603 {
+	name = 'largerFollowRequestIds1662943835603';
+
+	async up(queryRunner) {
+		await queryRunner.query(`ALTER TABLE "follow_request" ALTER COLUMN "requestId" TYPE VARCHAR(2048)`);
+	}
+
+	async down(queryRunner) {
+		await queryRunner.query(`ALTER TABLE "follow_request" ALTER COLUMN "requestId" TYPE VARCHAR(128)`);
+	}
+
+}

packages/backend/src/models/entities/follow-request.ts

@@ -40,7 +40,7 @@ export class FollowRequest {
 	public follower: User | null;
 
 	@Column('varchar', {
-		length: 128, nullable: true,
+		length: 2048, nullable: true,
 		comment: 'id of Follow Activity.',
 	})
 	public requestId: string | null;