Bump version to 0.1.3

Schema updates:
- publisher now mandatory
- conferenceYear required in conference object
- rightsList now optional
- ethicsApprovals removed
- posterContent renamed to content

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: Jamey O'Neill

pyproject.toml

@@ -1,7 +1,7 @@
 [tool.poetry]
 
 name = "poster2json"
-version = "0.1.2"
+version = "0.1.3"
 description = "Convert scientific posters (PDF/images) to structured JSON metadata using Large Language Models"
 
 packages = [{ include = "poster2json" }]