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/how_to_guide_builder.py

@@ -928,7 +928,7 @@ class HowToGuideBuilder:
         # Extract source files
         source_files = [w.get("file_path", "") for w in workflows]
         source_files = [
-            f"{Path(f).name}:{w.get('line_start', 0)}" for f, w in zip(source_files, workflows)
+            f"{Path(f).name}:{w.get('line_start', 0)}" for f, w in zip(source_files, workflows, strict=False)
         ]
 
         # Create guide