v0.2.0

Release 0.2.0

0.1.0 shipped 41 tools with no automation. Since then: parameter
automation, the arrangement tool layer, and a browser search fix where a
name returned by search_browser (with its .adv/.adg extension) was
rejected by load_device.

PyPI never allows a filename to be reused, so a re-upload of 0.1.0 fails
with 400 rather than replacing it. The publish workflow now passes
skip-existing so a re-run of an already-published version is a no-op
instead of a failed job; shipping changes still requires a version bump.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>