Rollen Freigaben Push und Beleg Upload ueberarbeiten

prisma/migrations/202605011200_roles_push_uploads/migration.sql

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+ALTER TYPE "Role" RENAME VALUE 'ADMIN' TO 'BOARD';
+ALTER TYPE "Role" ADD VALUE IF NOT EXISTS 'ORGA';
+
+CREATE TABLE "push_subscriptions" (
+  "id" TEXT NOT NULL,
+  "user_id" TEXT NOT NULL,
+  "endpoint" TEXT NOT NULL,
+  "p256dh" TEXT NOT NULL,
+  "auth" TEXT NOT NULL,
+  "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  "updated_at" TIMESTAMP(3) NOT NULL,
+  CONSTRAINT "push_subscriptions_pkey" PRIMARY KEY ("id")
+);
+
+CREATE UNIQUE INDEX "push_subscriptions_endpoint_key" ON "push_subscriptions"("endpoint");
+CREATE INDEX "push_subscriptions_user_id_idx" ON "push_subscriptions"("user_id");
+
+ALTER TABLE "push_subscriptions"
+  ADD CONSTRAINT "push_subscriptions_user_id_fkey"
+  FOREIGN KEY ("user_id") REFERENCES "users"("id")
+  ON DELETE CASCADE ON UPDATE CASCADE;