fix: Fix remaining 61 ruff linting errors (SIM102, SIM117)

Fixed all remaining linting errors from the 310 total:
- SIM102: Combined nested if statements (31 errors)
  - adaptors/openai.py
  - config_extractor.py
  - codebase_scraper.py
  - doc_scraper.py
  - github_fetcher.py
  - pattern_recognizer.py
  - pdf_scraper.py
  - test_example_extractor.py

- SIM117: Combined multiple with statements (24 errors)
  - tests/test_async_scraping.py (2 errors)
  - tests/test_github_scraper.py (2 errors)
  - tests/test_guide_enhancer.py (20 errors)

- Fixed test fixture parameter (mock_config in test_c3_integration.py)

All 700+ tests passing.

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

src/skill_seekers/cli/adaptors/openai.py

@@ -124,13 +124,12 @@ Always prioritize accuracy by consulting the attached documentation files before
         # Determine output filename
         if output_path.is_dir() or str(output_path).endswith("/"):
             output_path = Path(output_path) / f"{skill_dir.name}-openai.zip"
-        elif not str(output_path).endswith(".zip"):
+        elif not str(output_path).endswith(".zip") and not str(output_path).endswith("-openai.zip"):
             # Keep .zip extension
-            if not str(output_path).endswith("-openai.zip"):
-                output_str = str(output_path).replace(".zip", "-openai.zip")
-                if not output_str.endswith(".zip"):
-                    output_str += ".zip"
-                output_path = Path(output_str)
+            output_str = str(output_path).replace(".zip", "-openai.zip")
+            if not output_str.endswith(".zip"):
+                output_str += ".zip"
+            output_path = Path(output_str)
 
         output_path = Path(output_path)
         output_path.parent.mkdir(parents=True, exist_ok=True)