refactor(fsd): consolidate src/lib into shared, move test setup to shared/config/tests

playwright.config.ts

@@ -1,7 +1,8 @@
 import { defineConfig, devices } from "@playwright/test";
 
 export default defineConfig({
-	testDir: "./src/tests/e2e",
+	testDir: "./src",
+	testMatch: "**/*.e2e.{ts,js}",
 	fullyParallel: true,
 	forbidOnly: !!process.env.CI,
 	retries: process.env.CI ? 2 : 0,
@@ -26,7 +27,7 @@ export default defineConfig({
 		},
 	],
 	webServer: {
-		command: "npm run build && npm run preview",
+		command: "bun run build && bun run preview",
 		port: 4173,
 	},
 });