Release v0.2.0

Merge pull request #137 from eric-tramel/codex/post-merge-collection-shape-test

Fix stale collection shape assertion

Merge pull request #135 from eric-tramel/codex/issues-123-126-129-132-search-within-api

Tighten search_within_item payloads

Merge pull request #134 from eric-tramel/codex/issues-122-127-128-list-search-counts

Extend list and recent totals

Fix list/search count semantics

Merge pull request #136 from eric-tramel/codex/issues-130-131-item-payloads

Enrich item payload collection names

Merge pull request #133 from eric-tramel/codex/issues-121-124-125-citation-batch

Fix citation batch key handling

Fix top-level anyOf in get_bibtex tool schema breaking Claude API

Merge pull request #118 from eric-tramel/codex/issues-108-110-docs-schema

Fix search_within_item zero-limit merge regression