* Auto-add new contact threads to profile whitelist when local user sends first message to that thread.
* Ensure dynamic interactions have a non-negative timestamp even if the conversation was empty.
* Only call updateMessageMappingRangeOptions _after_ beginLongLivedReadTransaction and updating messageMappings.
* Improve documentation around how to avoid corrupt mappings in conversation view.
* Fix edge cases around large initial range sizes.
* Always treat dynamic interactions as read.
* Rebuild the “unseen” database views to remove dynamic interactions (see above).
// FREEBIE
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