Fix PR: seb-patron/antechamber#116 · fix commit 7a93c70 (base 9ee1500) ·
Wedge issue: seb-patron/antechamber#115 · skills feedback: seb-patron/muse-skills#2, #5, #7.
SendStreamTests.hostRoutedSendReachesCLIAndStreamsReply waited on message
count (true at echo + first partial delta) instead of the promised joined reply
"Hello there". Test-only wait-predicate fix, same 200×1ms bound, all
assertions preserved.