feat: add prompt service (#6241)

fix CLOUD-19

packages/backend/server/migrations/20240321065017_ai_prompts/migration.sql

@@ -0,0 +1,16 @@
+-- CreateEnum
+CREATE TYPE "AiPromptRole" AS ENUM ('system', 'assistant', 'user');
+
+-- CreateTable
+CREATE TABLE "ai_prompts" (
+    "id" VARCHAR NOT NULL,
+    "name" VARCHAR(20) NOT NULL,
+    "idx" INTEGER NOT NULL,
+    "role" "AiPromptRole" NOT NULL,
+    "content" TEXT NOT NULL,
+    "created_at" TIMESTAMPTZ(6) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT "ai_prompts_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "ai_prompts_name_idx_key" ON "ai_prompts"("name", "idx");

packages/backend/server/migrations/20240325125057_ai_sessions/migration.sql

@@ -0,0 +1,24 @@
+-- CreateTable
+CREATE TABLE "ai_sessions" (
+    "id" VARCHAR NOT NULL,
+    "user_id" VARCHAR NOT NULL,
+    "workspace_id" VARCHAR NOT NULL,
+    "doc_id" VARCHAR NOT NULL,
+    "prompt_name" VARCHAR NOT NULL,
+    "action" BOOLEAN NOT NULL,
+    "model" VARCHAR NOT NULL,
+    "messages" JSON NOT NULL,
+    "created_at" TIMESTAMPTZ(6) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updated_at" TIMESTAMPTZ(6) NOT NULL,
+
+    CONSTRAINT "ai_sessions_pkey" PRIMARY KEY ("id")
+);
+
+-- AddForeignKey
+ALTER TABLE "ai_sessions" ADD CONSTRAINT "ai_sessions_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "ai_sessions" ADD CONSTRAINT "ai_sessions_workspace_id_fkey" FOREIGN KEY ("workspace_id") REFERENCES "workspaces"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "ai_sessions" ADD CONSTRAINT "ai_sessions_doc_id_workspace_id_fkey" FOREIGN KEY ("doc_id", "workspace_id") REFERENCES "snapshots"("guid", "workspace_id") ON DELETE CASCADE ON UPDATE CASCADE;