Bump version to 0.2.0 for PyPI release

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

Author: clanker-lover

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "codedocent"
-version = "0.1.0"
+version = "0.2.0"
 description = "Code visualization for non-programmers"
 license = "MIT"
 requires-python = ">=3.10"