Update docs; Add invites to db

prisma/migrations/20251224120739_invites/migration.sql

@@ -0,0 +1,17 @@
+-- CreateTable
+CREATE TABLE "Invite" (
+    "id" TEXT NOT NULL,
+    "communityId" TEXT,
+    "totalInvites" INTEGER NOT NULL DEFAULT 0,
+    "remainingInvites" INTEGER NOT NULL DEFAULT 0,
+    "creationDate" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "expirationDate" TIMESTAMP(3),
+
+    CONSTRAINT "Invite_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Invite_id_key" ON "Invite"("id");
+
+-- AddForeignKey
+ALTER TABLE "Invite" ADD CONSTRAINT "Invite_communityId_fkey" FOREIGN KEY ("communityId") REFERENCES "Community"("id") ON DELETE SET NULL ON UPDATE CASCADE;