fix(web): rename Playwright e2e tests to .e2e.ts extension

- Rename store-hydration.test.ts -> store-hydration.e2e.ts
- Rename store-ssr.test.ts -> store-ssr.e2e.ts
- Update playwright.config.ts to match .e2e.ts files
- Add web/bunfig.toml for test runner configuration

This prevents Bun test runner from picking up Playwright tests,
which should only be run via `bun run e2e`

Author: brandonkachen

web/bunfig.toml

@@ -0,0 +1,5 @@
+[test]
+# Exclude Playwright e2e tests from Bun's test runner
+# These should be run via `bun run e2e` (which uses Playwright's runner)
+# E2E tests use .e2e.ts extension which Bun doesn't pick up by default
+root = "./src"

web/playwright.config.ts

@@ -6,6 +6,7 @@ const BASE_URL = `http://127.0.0.1:${PORT}`
 
 export default defineConfig({
   testDir: './src/__tests__/e2e',
+  testMatch: '**/*.e2e.ts',
   fullyParallel: true,
   forbidOnly: !!process.env.CI,
   retries: process.env.CI ? 2 : 0,