chore(gitignore): group Claude tooling entries under their own section (#63)

Move CLAUDE.md and .claude/ out of the # Python block into a dedicated
section so the categorisation matches what the entries actually are.

Author: pratyush618

.gitignore

@@ -11,16 +11,18 @@ dist/
 build/
 *.so
 *.dylib
-CLAUDE.md
 *.dll
 .venv/
 venv/
-.claude/
 junk/
 .mypy_cache/
 .pytest_cache/
 .ruff_cache/
 
+# Claude Code
+CLAUDE.md
+.claude/
+
 # IDE
 .idea/
 .vscode/