feat: publish threshold field on Feed model

prisma/migrations/20250506174806_add_publish_threshold_to_feed/migration.sql

@@ -0,0 +1,12 @@
+/*
+  Warnings:
+
+  - Added the required column `published_threshold` to the `Feed` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE "Feed" ADD COLUMN     "message_style_id" INTEGER,
+ADD COLUMN     "published_threshold" TIMESTAMP(3) NOT NULL;
+
+-- AddForeignKey
+ALTER TABLE "Feed" ADD CONSTRAINT "Feed_message_style_id_fkey" FOREIGN KEY ("message_style_id") REFERENCES "MessageStyle"("id") ON DELETE SET NULL ON UPDATE CASCADE;

prisma/schema.prisma

@@ -12,17 +12,18 @@ datasource db {
 }
 
 model Feed {
-  id               Int           @id @default(autoincrement())
-  name             String
-  url              String
-  guild_id         String
-  active           Boolean
-  created_at       DateTime      @default(now())
-  updated_at       DateTime      @updatedAt
-  channels         Channel[]
-  filters          Filter[]
-  message_style    MessageStyle? @relation(fields: [message_style_id], references: [id], onDelete: SetNull)
-  message_style_id Int?
+  id                  Int           @id @default(autoincrement())
+  name                String
+  url                 String
+  guild_id            String
+  active              Boolean
+  created_at          DateTime      @default(now())
+  updated_at          DateTime      @updatedAt
+  channels            Channel[]
+  filters             Filter[]
+  message_style       MessageStyle? @relation(fields: [message_style_id], references: [id], onDelete: SetNull)
+  message_style_id    Int?
+  published_threshold DateTime
 
   @@unique([guild_id, name])
   @@index([guild_id, created_at(sort: Desc)])