fix: update pyproject.toml version to 1.7.0

The version was out of sync with Cargo.toml.

Author: claude

sdk/python/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "a3s-code"
-version = "1.6.0"
+version = "1.7.0"
 description = "A3S Code - Native Python bindings for the AI coding agent"
 readme = "README.md"
 license = {text = "MIT"}