Logs commit 7989618 (the 2b shift from inline expansion to real
shared mono fns) and updates the test count to 197/197.
Pack feature step 2 is fully done — typed indexing, control-flow,
and per-call-shape mono all land. Step 3 (type-reflection
intrinsics) is the next slice and unlocks the stdlib payoff
(generic Into(Block) for Closure(..$args) -> $R) by enabling
$args[$i] substitution in type positions.
Documented follow-ups: mixed $fmt+..$args shapes, generic $R
binding, bare args reference, runtime indexing, and issue-0046
fix all remain deferred — none block step 3.