Add rudimentary codespell config

pyproject.toml

@@ -265,3 +265,10 @@ markers = [
     "snapshot: snapshot tests for symbolic editing operations",
     "isolated_process: test runs with process isolated agent",
 ]
+
+[tool.codespell]
+# Ref: https://github.com/codespell-project/codespell#using-a-config-file
+skip = '.git*,*.svg,*.lock,*.min.*'
+check-hidden = true
+# ignore-regex = ''
+# ignore-words-list = ''