Add N8n integration with models, services, and routes

- Introduced N8n and N8nSetting models in both MySQL and PostgreSQL schemas.
- Implemented N8nController and N8nService for managing N8n bots.
- Created N8nRouter for handling API requests related to N8n.
- Added DTOs and validation schemas for N8n integration.
- Updated server module and chatbot controller to include N8n functionality.
- Configured environment settings for N8n integration.

prisma/postgresql-migrations/20250514232744_add_n8n_table/migration.sql

@@ -0,0 +1,62 @@
+-- CreateTable
+CREATE TABLE "N8n" (
+    "id" TEXT NOT NULL,
+    "enabled" BOOLEAN NOT NULL DEFAULT true,
+    "description" VARCHAR(255),
+    "webhookUrl" VARCHAR(255),
+    "basicAuthUser" VARCHAR(255),
+    "basicAuthPass" VARCHAR(255),
+    "expire" INTEGER DEFAULT 0,
+    "keywordFinish" VARCHAR(100),
+    "delayMessage" INTEGER,
+    "unknownMessage" VARCHAR(100),
+    "listeningFromMe" BOOLEAN DEFAULT false,
+    "stopBotFromMe" BOOLEAN DEFAULT false,
+    "keepOpen" BOOLEAN DEFAULT false,
+    "debounceTime" INTEGER,
+    "ignoreJids" JSONB,
+    "splitMessages" BOOLEAN DEFAULT false,
+    "timePerChar" INTEGER DEFAULT 50,
+    "triggerType" "TriggerType",
+    "triggerOperator" "TriggerOperator",
+    "triggerValue" TEXT,
+    "createdAt" TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP NOT NULL,
+    "instanceId" TEXT NOT NULL,
+
+    CONSTRAINT "N8n_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "N8nSetting" (
+    "id" TEXT NOT NULL,
+    "expire" INTEGER DEFAULT 0,
+    "keywordFinish" VARCHAR(100),
+    "delayMessage" INTEGER,
+    "unknownMessage" VARCHAR(100),
+    "listeningFromMe" BOOLEAN DEFAULT false,
+    "stopBotFromMe" BOOLEAN DEFAULT false,
+    "keepOpen" BOOLEAN DEFAULT false,
+    "debounceTime" INTEGER,
+    "ignoreJids" JSONB,
+    "splitMessages" BOOLEAN DEFAULT false,
+    "timePerChar" INTEGER DEFAULT 50,
+    "createdAt" TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP NOT NULL,
+    "n8nIdFallback" VARCHAR(100),
+    "instanceId" TEXT NOT NULL,
+
+    CONSTRAINT "N8nSetting_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "N8nSetting_instanceId_key" ON "N8nSetting"("instanceId");
+
+-- AddForeignKey
+ALTER TABLE "N8n" ADD CONSTRAINT "N8n_instanceId_fkey" FOREIGN KEY ("instanceId") REFERENCES "Instance"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "N8nSetting" ADD CONSTRAINT "N8nSetting_n8nIdFallback_fkey" FOREIGN KEY ("n8nIdFallback") REFERENCES "N8n"("id") ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "N8nSetting" ADD CONSTRAINT "N8nSetting_instanceId_fkey" FOREIGN KEY ("instanceId") REFERENCES "Instance"("id") ON DELETE CASCADE ON UPDATE CASCADE;