Implement PostgreSQL support and update database configuration: Migrate from SQLite to PostgreSQL by updating the Prisma schema, Docker configuration, and environment variables. Add PostgreSQL dependencies and adjust the database connection logic in the application. Enhance .gitignore to exclude PostgreSQL-related files and directories.

prisma/migrations.sqlite.backup/20251215140148_add_challenges/migration.sql

@@ -0,0 +1,33 @@
+-- CreateTable
+CREATE TABLE "Challenge" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "challengerId" TEXT NOT NULL,
+    "challengedId" TEXT NOT NULL,
+    "title" TEXT NOT NULL,
+    "description" TEXT NOT NULL,
+    "pointsReward" INTEGER NOT NULL DEFAULT 100,
+    "status" TEXT NOT NULL DEFAULT 'PENDING',
+    "adminId" TEXT,
+    "adminComment" TEXT,
+    "winnerId" TEXT,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "acceptedAt" DATETIME,
+    "completedAt" DATETIME,
+    "updatedAt" DATETIME NOT NULL,
+    CONSTRAINT "Challenge_challengerId_fkey" FOREIGN KEY ("challengerId") REFERENCES "User" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
+    CONSTRAINT "Challenge_challengedId_fkey" FOREIGN KEY ("challengedId") REFERENCES "User" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
+    CONSTRAINT "Challenge_adminId_fkey" FOREIGN KEY ("adminId") REFERENCES "User" ("id") ON DELETE SET NULL ON UPDATE CASCADE,
+    CONSTRAINT "Challenge_winnerId_fkey" FOREIGN KEY ("winnerId") REFERENCES "User" ("id") ON DELETE SET NULL ON UPDATE CASCADE
+);
+
+-- CreateIndex
+CREATE INDEX "Challenge_challengerId_idx" ON "Challenge"("challengerId");
+
+-- CreateIndex
+CREATE INDEX "Challenge_challengedId_idx" ON "Challenge"("challengedId");
+
+-- CreateIndex
+CREATE INDEX "Challenge_status_idx" ON "Challenge"("status");
+
+-- CreateIndex
+CREATE INDEX "Challenge_adminId_idx" ON "Challenge"("adminId");