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/conflict_detector.py

@@ -394,7 +394,7 @@ class ConflictDetector:
             }
 
         # Compare parameter names and types
-        for i, (doc_param, code_param) in enumerate(zip(docs_params, code_params)):
+        for i, (doc_param, code_param) in enumerate(zip(docs_params, code_params, strict=False)):
             doc_name = doc_param.get("name", "")
             code_name = code_param.get("name", "")
 
@@ -447,7 +447,7 @@ class ConflictDetector:
             "total": len(conflicts),
             "by_type": {},
             "by_severity": {},
-            "apis_affected": len(set(c.api_name for c in conflicts)),
+            "apis_affected": len({c.api_name for c in conflicts}),
         }
 
         # Count by type