🗃️ db: redesign collection schema with manual pivot table to media

prisma/migrations/20260329033709_create_table_pivot_for_media_collections/migration.sql

@@ -0,0 +1,33 @@
+/*
+  Warnings:
+
+  - You are about to drop the `_MediaCollections` table. If the table is not empty, all the data it contains will be lost.
+
+*/
+-- DropForeignKey
+ALTER TABLE "_MediaCollections" DROP CONSTRAINT "_MediaCollections_A_fkey";
+
+-- DropForeignKey
+ALTER TABLE "_MediaCollections" DROP CONSTRAINT "_MediaCollections_B_fkey";
+
+-- DropTable
+DROP TABLE "_MediaCollections";
+
+-- CreateTable
+CREATE TABLE "CollectionMedia" (
+    "id" UUID NOT NULL,
+    "collectionId" UUID NOT NULL,
+    "mediaId" UUID NOT NULL,
+    "savedAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "CollectionMedia_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "CollectionMedia_collectionId_mediaId_key" ON "CollectionMedia"("collectionId", "mediaId");
+
+-- AddForeignKey
+ALTER TABLE "CollectionMedia" ADD CONSTRAINT "CollectionMedia_collectionId_fkey" FOREIGN KEY ("collectionId") REFERENCES "collections"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "CollectionMedia" ADD CONSTRAINT "CollectionMedia_mediaId_fkey" FOREIGN KEY ("mediaId") REFERENCES "medias"("id") ON DELETE RESTRICT ON UPDATE CASCADE;