chore: add husky pre-commit hook and lint-staged configuration

- Created a pre-commit hook in .husky to run lint-staged.
- Added .lintstagedrc.mjs to format frontend files with Prettier and apply Spotless to backend Java files.
- Introduced .prettierignore to exclude specific directories from formatting.

frontend/playwright.config.ts

@@ -3,46 +3,46 @@ import { defineConfig, devices } from '@playwright/test';
 const e2ePort = process.env['E2E_PORT'] ?? '4200';
 
 export default defineConfig({
-  testDir: './e2e',
-  fullyParallel: true,
-  forbidOnly: Boolean(process.env['CI']),
-  retries: process.env['CI'] ? 2 : 0,
-  workers: process.env['CI'] ? 1 : undefined,
-  reporter: process.env['CI'] ? 'line' : 'html',
-  use: {
-    baseURL: `http://127.0.0.1:${e2ePort}`,
-    screenshot: 'only-on-failure',
-    trace: 'on-first-retry',
-  },
-  projects: [
-    {
-      name: 'mobile',
-      use: {
-        ...devices['Desktop Chrome'],
-        viewport: { width: 360, height: 800 },
-      },
-    },
-    {
-      name: 'tablet',
-      use: {
-        ...devices['Desktop Chrome'],
-        viewport: { width: 768, height: 1024 },
-      },
-    },
-    {
-      name: 'desktop',
-      use: {
-        ...devices['Desktop Chrome'],
-        viewport: { width: 1280, height: 800 },
-      },
-    },
-  ],
-  webServer: {
-    command: process.env['CI']
-      ? `bun run build && bunx serve -s dist/lmnp-frontend/browser -l ${e2ePort}`
-      : `bun run start -- --host 127.0.0.1 --port ${e2ePort}`,
-    url: `http://127.0.0.1:${e2ePort}`,
-    reuseExistingServer: !process.env['CI'],
-    timeout: 120_000,
-  },
+	testDir: './e2e',
+	fullyParallel: true,
+	forbidOnly: Boolean(process.env['CI']),
+	retries: process.env['CI'] ? 2 : 0,
+	workers: process.env['CI'] ? 1 : undefined,
+	reporter: process.env['CI'] ? 'line' : 'html',
+	use: {
+		baseURL: `http://127.0.0.1:${e2ePort}`,
+		screenshot: 'only-on-failure',
+		trace: 'on-first-retry',
+	},
+	projects: [
+		{
+			name: 'mobile',
+			use: {
+				...devices['Desktop Chrome'],
+				viewport: { width: 360, height: 800 },
+			},
+		},
+		{
+			name: 'tablet',
+			use: {
+				...devices['Desktop Chrome'],
+				viewport: { width: 768, height: 1024 },
+			},
+		},
+		{
+			name: 'desktop',
+			use: {
+				...devices['Desktop Chrome'],
+				viewport: { width: 1280, height: 800 },
+			},
+		},
+	],
+	webServer: {
+		command: process.env['CI']
+			? `bun run build && bunx serve -s dist/lmnp-frontend/browser -l ${e2ePort}`
+			: `bun run start -- --host 127.0.0.1 --port ${e2ePort}`,
+		url: `http://127.0.0.1:${e2ePort}`,
+		reuseExistingServer: !process.env['CI'],
+		timeout: 120_000,
+	},
 });