The per-process address-space cap was defense-in-depth on top of the
SessionDB leak sweep (nobody sets the knob; the sweep removes the leak).
On the 96-worker CI runner it was also the only PR-specific difference
when tests/tools/test_image_source.py hung to the 600s SIGKILL while the
same file passes in ~30s on every sibling branch: RLIMIT_AS counts virtual
reservations, and image/threading libraries reserve far more address
space than they touch. Keep the sweep, remove the cap and its env knob.
teknium1
087c4f4f4e