fix: clean up activePerAgent before sending to resultCh

Move activePerAgent decrement/deletion out of execute() and
executeResume() defers and into the code paths immediately before each
resultCh send (handleRunResult and early-return paths). This guarantees
that when a result consumer reads from the channel the map is already
clean, eliminating a race between defer and result receipt.

Remove the polling loop from TestPool_ActivePerAgent_DeletesZeroEntries
and check the map state immediately after reading the result instead.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

0 files changed, 0 insertions, 0 deletions