fix: Update test version checks to 2.9.0 and remove whitespace

- Update version checks in test_package_structure.py from 2.8.0 to 2.9.0
- Update version check in test_cli_paths.py from 2.8.0 to 2.9.0
- Remove trailing whitespace from blank lines in code_analyzer.py (lines 1436-1504)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

tests/test_cli_paths.py

@@ -138,7 +138,7 @@ class TestUnifiedCLIEntryPoints(unittest.TestCase):
 
             # Should show version
             output = result.stdout + result.stderr
-            self.assertIn("2.8.0", output)
+            self.assertIn("2.9.0", output)
 
         except FileNotFoundError:
             # If skill-seekers is not installed, skip this test