chore(release): bump version to 1.8.0

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XKP6U4z7UKzpKvhzUSPAmi

Author: jet52

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "ndcourts-mcp"
-version = "1.7.0"
+version = "1.8.0"
 description = "MCP server for North Dakota Supreme Court opinions (1889–present)"
 requires-python = ">=3.12"
 dependencies = [