Bump version to 0.1.8

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

Author: zc277584121

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "memsearch"
-version = "0.1.7"
+version = "0.1.8"
 description = "Semantic memory search for markdown knowledge bases"
 readme = "README.md"
 license = "MIT"