v1.16.0

What's Changed

• Python 3.13 by @brndnmtthws in #585
• feat: add buy-only rebalancing mode for direct stock purchases by @brndnmtthws in #586
• docs: update README for accuracy and document hidden features by @brndnmtthws in #587
• bump version by @brndnmtthws in #588

Full Changelog: v1.15.1...v1.16.0