Updated the direct file upload/download to use the non-base64 approaches as well
Updated the attachment 'serverId' value to be a string instead of a UInt64 (future-proofing)
Updated the OnionRequest V4 response handling to avoid converting the "response body" part to a string and processing that, instead just slice the byte array (ie. stopped it from being broken from multiple conversions)
Removed the base64-based file upload/download endpoints (no use including them when they are inefficient and we don't want to use them)
Got the updated file upload working
Removed the legacy 'room' header
Consolidated a number of types between SOGS, FileServer and general requests
Updated the OnionRequestAPI to deal with a Data payload (rather than encoding it to a string and then back to data)
Added a few types to make the code more readable
Added the inbox request to the polling
Added a couple of properties to the TSContactThread to indicate the originating open group to support SOGS DMs
Added code to store the latest message id for an open group inbox
Added a bunch of documentation from the API docs into the OpenGroupAPI (and associated models)
Updated the OpenGroupAPI to match the latest docs
Fixed the incorrect structure of the SendDirectMessageRequest
Fixed an incorrect inbox endpoint path
Tweaked the batch response handling so it wouldn't fail to parse all responses if a single one failed
Renamed IdPrefix to SessionId.Prefix and cleaned up the type to be more readable & self-documenting
Added some new properties to the OpenGroupV2
Moved a number of methods and variables from OpenGroupAPI to OpenGroupManager (anything doing actual logic)
Moved the message signing into the OpenGroupAPI (since that's the only place it happens)
Renamed remaining old model classes to start with 'Legacy' to make clean up easier
Updated the OpenGroupAPI poll method to use the same logic as it previously did to determine if it should retrieve recent messages or messages since the last one
Updated the MessageSendJob to support V4 messages (V2 messages will be upgraded to V4 if they get re-encoded)
Renamed the Message+Destination from 'openGroup' & 'openGroupV2' to 'legacyOpenGroup' and 'openGroup'
Started plugging in more of the V4 APIs
Renamed a number of the V2 APIs to start with 'legacy'
Morgan Pretty