style: fix ruff lint and formatting errors

- E741: rename ambiguous variable `l` → `line_text` in enhance_skill_local.py
- ARG001: suppress unused `doc` param in word_scraper _build_section()
- SIM108: use ternary for code_text assignment in word_scraper
- F841: remove unused `metadata` variable in test_chunking_integration
- F401: remove unused imports in test_pinecone_adaptor
- ARG001: rename unused `docs` → `_docs` in test_pinecone_adaptor
- Format 20 files to match ruff formatting rules

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tests/test_create_arguments.py

@@ -131,7 +131,9 @@ class TestArgumentHelpers:
         """Should return set of universal argument names."""
         names = get_universal_argument_names()
         assert isinstance(names, set)
-        assert len(names) == 19  # Phase 2: added 4 workflow arguments + local_repo_path + doc_version
+        assert (
+            len(names) == 19
+        )  # Phase 2: added 4 workflow arguments + local_repo_path + doc_version
         assert "name" in names
         assert "enhance_level" in names  # Phase 1: consolidated flag
         assert "enhance_workflow" in names  # Phase 2: workflow support