Tests that made their own engine object now use createFakeEngine() with
its scripting hooks or an override of the one member under test, so they
follow the contract when it changes. 125 such literals in 74 test files
go down to two that are not globe engines on purpose; report-qa-harness
counts them, and the baseline keeps the number from growing.
Counters that may only fall, each with a committed baseline and a test
that fails on growth:
- report-engine-coupling.mjs gains layer modules that take the viewer
in attachRenderer (33), layer folders with their own "view being
restored" flag (9), engine.surface calls outside src/globe (41) and
layer ids named in the engine switch (3).
- report-qa-harness.mjs counts QA scripts that launch Chrome themselves
(98), wait with fixed sleeps (117), take the hidden loading screen as
readiness (9), read Cesium-only objects (75) or define their own
waitFor helpers (19).
- withCallLog records every contract member the contract suite calls on
the fake engine; contractCoverage.test.mjs fails when a member outside
contract-uncalled-baseline.json goes uncalled, and when a listed one
is called now, so the list of 12 only shrinks.