core: roster delivery via inline file (#7048)

packages/simplex-chat-python/src/simplex_chat/types/_types.py

@@ -1646,6 +1646,8 @@ class FileTransferMeta(TypedDict):
     chunkSize: int  # int64
     cancelled: bool
 
+FileType = Literal["normal", "roster"]
+
 class Format_bold(TypedDict):
     type: Literal["bold"]
 
@@ -2529,6 +2531,7 @@ class RcvFileTransfer(TypedDict):
     xftpRcvFile: NotRequired["XFTPRcvFile"]
     fileInvitation: "FileInvitation"
     fileStatus: "RcvFileStatus"
+    fileType: "FileType"
     rcvFileInline: NotRequired["InlineFileMode"]
     senderDisplayName: str
     chunkSize: int  # int64