fix: CV split-button height + LinkedIn redirect; tooling tidy

- CV split button: make the chevron <details> flex and the summary full-height so the
  toggle matches the primary button height (verified 39.1px == 39.1px)
- nginx: /Linkedin now 301s to the real profile (linkedin.com/in/connor-babbington)
- prettier-ignore .pnpm-store; gitignore .claude/settings.local.json; e2e port 4321->4399;
  dev preview autoPort

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/playwright.config.ts

@@ -11,13 +11,13 @@ export default defineConfig({
   retries: process.env.CI ? 1 : 0,
   reporter: process.env.CI ? [['list'], ['html', { open: 'never' }]] : 'list',
   use: {
-    baseURL: 'http://localhost:4321',
+    baseURL: 'http://localhost:4399',
     trace: 'on-first-retry',
   },
   projects: [{ name: 'chromium', use: { ...devices['Desktop Chrome'] } }],
   webServer: {
-    command: 'pnpm -C ../site build && pnpm -C ../site preview --port 4321 --host',
-    url: 'http://localhost:4321/',
+    command: 'pnpm -C ../site build && pnpm -C ../site preview --port 4399 --host',
+    url: 'http://localhost:4399/',
     timeout: 180_000,
     reuseExistingServer: !process.env.CI,
   },