feat(db): add TelegramChannel.allowsForwarding + IngestionRun.zipsForwarded

prisma/migrations/20260731000000_add_forward_priority_ingestion/migration.sql

@@ -0,0 +1,10 @@
+-- AlterTable: forward-priority ingestion support.
+-- allowsForwarding is nullable — null means "not yet checked", treated the
+-- same as false until confirmed true (safe default: download+reupload path).
+ALTER TABLE "telegram_channels"
+  ADD COLUMN "allowsForwarding" BOOLEAN;
+
+-- AlterTable: count of packages forwarded (no download) during a run.
+-- Additive, non-null with a default of 0 — no data change for existing rows.
+ALTER TABLE "ingestion_runs"
+  ADD COLUMN "zipsForwarded" INTEGER NOT NULL DEFAULT 0;