chore: add migration

prisma/migrations/20250501193251_cascade_channel/migration.sql

@@ -0,0 +1,14 @@
+-- RedefineTables
+PRAGMA defer_foreign_keys=ON;
+PRAGMA foreign_keys=OFF;
+CREATE TABLE "new_Channel" (
+    "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    "channel_id" TEXT NOT NULL,
+    "feedId" INTEGER NOT NULL,
+    CONSTRAINT "Channel_feedId_fkey" FOREIGN KEY ("feedId") REFERENCES "Feed" ("id") ON DELETE CASCADE ON UPDATE CASCADE
+);
+INSERT INTO "new_Channel" ("channel_id", "feedId", "id") SELECT "channel_id", "feedId", "id" FROM "Channel";
+DROP TABLE "Channel";
+ALTER TABLE "new_Channel" RENAME TO "Channel";
+PRAGMA foreign_keys=ON;
+PRAGMA defer_foreign_keys=OFF;