fix: Increase timeout for macOS CI E2E test

- Increase timeout from 15s to 30s for test_github_command_accepts_enhance_local_flag
- macOS runners are slower and need more time for E2E CLI tests
- Test verifies flag parsing, not actual scraping, so timeout can be generous
- Fixes CI failure on macOS 3.11

tests/test_issue_219_e2e.py

@@ -139,7 +139,7 @@ class TestIssue219Problem2CLIFlags(unittest.TestCase):
             ['skill-seekers', 'github', '--repo', 'test/test', '--enhance-local'],
             capture_output=True,
             text=True,
-            timeout=15  # Increased timeout for macOS CI environment
+            timeout=30  # Increased timeout for slower macOS CI runners
         )
 
         # VERIFY: No "unrecognized arguments" error