chore: bump version to 3.0.0

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

Author: feanil

code_annotations/__init__.py

@@ -2,4 +2,4 @@
 Extensible tools for parsing annotations in codebases.
 """
 
-__version__ = "2.3.2"
+__version__ = "3.0.0"