codmap 0.0.9 — a deep graph now says what kind of artifact it is

Schema unchanged (0.13). Nothing about what codemap extracts changes; what changes is
disclosure. The deep (jedi) tier is not byte-stable: ten builds of an unchanged tree
produced two distinct artifacts here, and on a larger external tree one build in seven
lost a real call edge of 9524. That limit was known — measured at R1-C9 — and lived in a
comment in a CI workflow, while README said "deterministic" with no tier attached and the
one doc that named it gave a cause this measurement refutes.

Every deep graph now carries a note with the measured numbers, and `diff` prints the noise
floor above the verdict when both sides are deep. Five external explanations were tested
at ten runs each and refuted; the mechanism is jedi's per-script execution budget, and why
it differs by one execution between processes is stated as unknown rather than guessed.

Verified from PyPI, outside any checkout: the note appears on --deep and not on fast, and
the caveat appears on a deep/deep diff and not on a fast/fast one.