GeezerVison

Replace jumping around with gotos by a quite large macro.

Reorder frame function tests to check the most likely condition first.

It breaks release builds but not debug builds.

Splits the §5 checkpoint metric from single "net LOC delta" into
three independent trajectories (C added, C++ removed, shell-pending)
per pythia python#187 + supervisor 2026-04-27T08:58:19Z authorization.

Net-LOC alone false-positive-aborts during 4.A-D because algorithm
bodies port to C while the C++ Pass-class shell stays until bridge
dissolution in Phase 4.E. BLME batch 2 +140 net LOC is the
in-flight precedent: .cpp 184→21 (-163 algorithm), _c.c +295 (C
add), +9 verifier; net positive by design, healthy by per-trajectory
metric.

Adds §5.0 three-trajectory framework + per-file accounting template,
restructures §5.A/§5.B/§5.E pass criteria around the three
trajectories, adds new §5.F Phase 4.E close gate where net-LOC
becomes valid (post-shell-deletion).