feat(sveltekit): Added bare bones svelte setup

.env.example

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+# Replace with your DB credentials!
+DATABASE_URL="postgres://user:password@host:port/db-name"

.gitignore

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+test-results
+node_modules
+
+# Output
+.output
+.vercel
+.netlify
+.wrangler
+/.svelte-kit
+/build
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Env
+.env
+.env.*
+!.env.example
+!.env.test
+
+# Vite
+vite.config.js.timestamp-*
+vite.config.ts.timestamp-*

.npmrc

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+engine-strict=true

.prettierignore

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+# Package Managers
+package-lock.json
+pnpm-lock.yaml
+yarn.lock
+bun.lock
+bun.lockb

.prettierrc

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+{
+	"useTabs": true,
+	"singleQuote": true,
+	"trailingComma": "none",
+	"printWidth": 100,
+	"plugins": ["prettier-plugin-svelte", "prettier-plugin-tailwindcss"],
+	"overrides": [
+		{
+			"files": "*.svelte",
+			"options": {
+				"parser": "svelte"
+			}
+		}
+	]
+}

drizzle.config.ts

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+import { defineConfig } from 'drizzle-kit';
+
+if (!process.env.DATABASE_URL) throw new Error('DATABASE_URL is not set');
+
+export default defineConfig({
+	schema: './src/lib/server/db/schema.ts',
+	dialect: 'postgresql',
+	dbCredentials: { url: process.env.DATABASE_URL },
+	verbose: true,
+	strict: true
+});

e2e/demo.test.ts

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+import { expect, test } from '@playwright/test';
+
+test('home page has expected h1', async ({ page }) => {
+	await page.goto('/');
+	await expect(page.locator('h1')).toBeVisible();
+});

eslint.config.js

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+import prettier from 'eslint-config-prettier';
+import js from '@eslint/js';
+import { includeIgnoreFile } from '@eslint/compat';
+import svelte from 'eslint-plugin-svelte';
+import globals from 'globals';
+import { fileURLToPath } from 'node:url';
+import ts from 'typescript-eslint';
+import svelteConfig from './svelte.config.js';
+
+const gitignorePath = fileURLToPath(new URL('./.gitignore', import.meta.url));
+
+export default ts.config(
+	includeIgnoreFile(gitignorePath),
+	js.configs.recommended,
+	...ts.configs.recommended,
+	...svelte.configs.recommended,
+	prettier,
+	...svelte.configs.prettier,
+	{
+		languageOptions: {
+			globals: { ...globals.browser, ...globals.node }
+		},
+		rules: { 'no-undef': 'off' }
+	},
+	{
+		files: ['**/*.svelte', '**/*.svelte.ts', '**/*.svelte.js'],
+		languageOptions: {
+			parserOptions: {
+				projectService: true,
+				extraFileExtensions: ['.svelte'],
+				parser: ts.parser,
+				svelteConfig
+			}
+		}
+	}
+);

package.json

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+{
+	"name": "open-reception",
+	"private": true,
+	"version": "0.0.1",
+	"type": "module",
+	"scripts": {
+		"dev": "vite dev",
+		"build": "vite build",
+		"preview": "vite preview",
+		"prepare": "svelte-kit sync || echo ''",
+		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
+		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
+		"format": "prettier --write .",
+		"lint": "prettier --check . && eslint .",
+		"test:unit": "vitest",
+		"test": "npm run test:unit -- --run && npm run test:e2e",
+		"test:e2e": "playwright test",
+		"db:push": "drizzle-kit push",
+		"db:migrate": "drizzle-kit migrate",
+		"db:studio": "drizzle-kit studio"
+	},
+	"devDependencies": {
+		"@eslint/compat": "^1.2.5",
+		"@eslint/js": "^9.18.0",
+		"@playwright/test": "^1.49.1",
+		"@sveltejs/adapter-auto": "^6.0.0",
+		"@sveltejs/kit": "^2.16.0",
+		"@sveltejs/vite-plugin-svelte": "^5.0.0",
+		"@tailwindcss/typography": "^0.5.15",
+		"@tailwindcss/vite": "^4.0.0",
+		"@testing-library/jest-dom": "^6.6.3",
+		"@testing-library/svelte": "^5.2.4",
+		"@types/node": "^22",
+		"drizzle-kit": "^0.30.2",
+		"eslint": "^9.18.0",
+		"eslint-config-prettier": "^10.0.1",
+		"eslint-plugin-svelte": "^3.0.0",
+		"globals": "^16.0.0",
+		"jsdom": "^26.0.0",
+		"prettier": "^3.4.2",
+		"prettier-plugin-svelte": "^3.3.3",
+		"prettier-plugin-tailwindcss": "^0.6.11",
+		"svelte": "^5.0.0",
+		"svelte-check": "^4.0.0",
+		"tailwindcss": "^4.0.0",
+		"typescript": "^5.0.0",
+		"typescript-eslint": "^8.20.0",
+		"vite": "^6.2.6",
+		"vitest": "^3.2.3"
+	},
+	"dependencies": {
+		"drizzle-orm": "^0.40.0",
+		"postgres": "^3.4.5"
+	}
+}

playwright.config.ts

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+import { defineConfig } from '@playwright/test';
+
+export default defineConfig({
+	webServer: {
+		command: 'npm run build && npm run preview',
+		port: 4173
+	},
+	testDir: 'e2e'
+});

src/app.css

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+@import 'tailwindcss';
+@plugin '@tailwindcss/typography';

src/app.d.ts

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+// See https://svelte.dev/docs/kit/types#app.d.ts
+// for information about these interfaces
+declare global {
+	namespace App {
+		// interface Error {}
+		// interface Locals {}
+		// interface PageData {}
+		// interface PageState {}
+		// interface Platform {}
+	}
+}
+
+export {};

src/app.html

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+<!doctype html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8" />
+		<link rel="icon" href="%sveltekit.assets%/favicon.png" />
+		<meta name="viewport" content="width=device-width, initial-scale=1" />
+		%sveltekit.head%
+	</head>
+	<body data-sveltekit-preload-data="hover">
+		<div style="display: contents">%sveltekit.body%</div>
+	</body>
+</html>

src/demo.spec.ts

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+import { describe, it, expect } from 'vitest';
+
+describe('sum test', () => {
+	it('adds 1 + 2 to equal 3', () => {
+		expect(1 + 2).toBe(3);
+	});
+});

src/lib/index.ts

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+// place files you want to import through the `$lib` alias in this folder.

src/lib/server/db/index.ts

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+import { drizzle } from 'drizzle-orm/postgres-js';
+import postgres from 'postgres';
+import * as schema from './schema';
+import { env } from '$env/dynamic/private';
+
+if (!env.DATABASE_URL) throw new Error('DATABASE_URL is not set');
+
+const client = postgres(env.DATABASE_URL);
+
+export const db = drizzle(client, { schema });

src/lib/server/db/schema.ts

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+import { pgTable, serial, integer } from 'drizzle-orm/pg-core';
+
+export const user = pgTable('user', {
+	id: serial('id').primaryKey(),
+	age: integer('age')
+});

src/routes/+layout.svelte

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+<script lang="ts">
+	import '../app.css';
+
+	let { children } = $props();
+</script>
+
+{@render children()}

src/routes/+page.svelte

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+<h1>Welcome to SvelteKit</h1>
+<p>Visit <a href="https://svelte.dev/docs/kit">svelte.dev/docs/kit</a> to read the documentation</p>

src/routes/page.svelte.test.ts

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+import { describe, test, expect } from 'vitest';
+import '@testing-library/jest-dom/vitest';
+import { render, screen } from '@testing-library/svelte';
+import Page from './+page.svelte';
+
+describe('/+page.svelte', () => {
+	test('should render h1', () => {
+		render(Page);
+		expect(screen.getByRole('heading', { level: 1 })).toBeInTheDocument();
+	});
+});

svelte.config.js

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+import adapter from '@sveltejs/adapter-auto';
+import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';
+
+/** @type {import('@sveltejs/kit').Config} */
+const config = {
+	// Consult https://svelte.dev/docs/kit/integrations
+	// for more information about preprocessors
+	preprocess: vitePreprocess(),
+
+	kit: {
+		// adapter-auto only supports some environments, see https://svelte.dev/docs/kit/adapter-auto for a list.
+		// If your environment is not supported, or you settled on a specific environment, switch out the adapter.
+		// See https://svelte.dev/docs/kit/adapters for more information about adapters.
+		adapter: adapter()
+	}
+};
+
+export default config;

tsconfig.json

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+{
+	"extends": "./.svelte-kit/tsconfig.json",
+	"compilerOptions": {
+		"allowJs": true,
+		"checkJs": true,
+		"esModuleInterop": true,
+		"forceConsistentCasingInFileNames": true,
+		"resolveJsonModule": true,
+		"skipLibCheck": true,
+		"sourceMap": true,
+		"strict": true,
+		"moduleResolution": "bundler"
+	}
+	// Path aliases are handled by https://svelte.dev/docs/kit/configuration#alias
+	// except $lib which is handled by https://svelte.dev/docs/kit/configuration#files
+	//
+	// If you want to overwrite includes/excludes, make sure to copy over the relevant includes/excludes
+	// from the referenced tsconfig.json - TypeScript does not merge them in
+}

vite.config.ts

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+import tailwindcss from '@tailwindcss/vite';
+import { svelteTesting } from '@testing-library/svelte/vite';
+import { sveltekit } from '@sveltejs/kit/vite';
+import { defineConfig } from 'vite';
+
+export default defineConfig({
+	plugins: [tailwindcss(), sveltekit()],
+	test: {
+		projects: [
+			{
+				extends: './vite.config.ts',
+				plugins: [svelteTesting()],
+				test: {
+					name: 'client',
+					environment: 'jsdom',
+					clearMocks: true,
+					include: ['src/**/*.svelte.{test,spec}.{js,ts}'],
+					exclude: ['src/lib/server/**'],
+					setupFiles: ['./vitest-setup-client.ts']
+				}
+			},
+			{
+				extends: './vite.config.ts',
+				test: {
+					name: 'server',
+					environment: 'node',
+					include: ['src/**/*.{test,spec}.{js,ts}'],
+					exclude: ['src/**/*.svelte.{test,spec}.{js,ts}']
+				}
+			}
+		]
+	}
+});

vitest-setup-client.ts

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+import '@testing-library/jest-dom/vitest';
+import { vi } from 'vitest';
+
+// required for svelte5 + jsdom as jsdom does not support matchMedia
+Object.defineProperty(window, 'matchMedia', {
+	writable: true,
+	enumerable: true,
+	value: vi.fn().mockImplementation((query) => ({
+		matches: false,
+		media: query,
+		onchange: null,
+		addEventListener: vi.fn(),
+		removeEventListener: vi.fn(),
+		dispatchEvent: vi.fn()
+	}))
+});
+
+// add more mocks here if you need them