Function sortGroupCommits

sortGroupCommits(commits: GroupMessagePair[]): GroupMessagePair[]
Sorts group commits to handle race conditions according to MIP-03.

Sorting order (MIP-03):
1. First, sort by commit time (created_at) - older commits first
2. If equal, sort by event id (lexicographically) - lower id first
Parameters
- commits: GroupMessagePair[]
  Array of commit message pairs to sort
Returns GroupMessagePair[]
Sorted array of commits
- Defined in ../home/robert/Projects/marmot-ts/src/core/group-message.ts:266