feat(api-db): initialize prisma with postgresql datasource

apps/api/.env.example

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+DATABASE_URL="postgresql://postgres:postgres@localhost:5432/todolist?schema=public"

apps/api/.gitignore

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+node_modules
+# Keep environment variables out of version control
+.env
+
+/generated/prisma

apps/api/package.json

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+{
+  "name": "@todolist/api",
+  "version": "0.1.0",
+  "description": "TodoList API service",
+  "scripts": {
+    "prisma:generate": "prisma generate",
+    "prisma:format": "prisma format",
+    "prisma:validate": "prisma validate"
+  },
+  "license": "GPL-3.0-or-later",
+  "devDependencies": {
+    "dotenv": "^16.6.1",
+    "prisma": "^7.6.0"
+  },
+  "private": true,
+  "dependencies": {
+    "@prisma/client": "^7.6.0"
+  }
+}

apps/api/prisma.config.ts

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+// This file was generated by Prisma, and assumes you have installed the following:
+// npm install --save-dev prisma dotenv
+import "dotenv/config";
+import { defineConfig } from "prisma/config";
+
+export default defineConfig({
+  schema: "prisma/schema.prisma",
+  migrations: {
+    path: "prisma/migrations"
+  },
+  datasource: {
+    url: process.env["DATABASE_URL"]
+  }
+});

apps/api/prisma/schema.prisma

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+// This is your Prisma schema file,
+// learn more about it in the docs: https://pris.ly/d/prisma-schema
+
+// Get a free hosted Postgres database in seconds: `npx create-db`
+
+generator client {
+  provider = "prisma-client"
+  output   = "../generated/prisma"
+}
+
+datasource db {
+  provider = "postgresql"
+}