Align attributions with the deltasignal paraphrases; remove home paths

[adamjohnwright]

Follow-up to deltasignal #63, which paraphrased verbatim quotes out of that repo. This repo still carried the same two requirement sentences quoted verbatim, so the record said different things about the same requirement in two places — the kind of drift that makes a record untrustworthy later.

Aligned

file	was
src/diagram_connectivity.py	verbatim quote of the two-glyphs-in-one-compartment requirement
src/resolution_validation.py	verbatim quote of the both-directions mapping requirement
specs/001-validator-fidelity/spec.md	## Architecture principle (Adam, 2026-09) + a blockquote of first-person speech
src/logic_network_generator.py	"Rule (per Adam)"
tests/test_provenance_exports.py	"the invariant behind Adam's question"

Technical content unchanged — only the quoting and the attribution-by-name. The pyproject.toml authorship line stays.

Home paths

Both bin/ scripts hardcoded /home/awright/gitroot/mp-biopath-pathways. Now MPBIO_ROOT with a ~/gitroot default, matching the convention the deltasignal bench scripts already use. git grep -E "/home/|/Users/" is empty.

Not changed, deliberately

docker-compose.yml publishes Neo4j on 7474/7687 across all interfaces with image-default auth. I previously flagged this as an exposure and it is not one. The image is public.ecr.aws/reactome/graphdb — Reactome's own publicly distributed database — so there is no confidentiality impact, and publishing the ports is the entire point of the file. The credential literals in three tests authenticate against that same public database.

Verification

check	result
pytest	1036 passed, 1 pre-existing MHC failure
ruff check src/ bin/	clean
mypy src/	clean
git grep -I "Adam"	1, the authorship line
git grep -E "/home/|/Users/"	empty

Noted, not touched

bin/check-no-path-cases-in-neo4j.py:42 reads a hardcoded /tmp/mpbio_pathways.tsv that must be pre-created. A latent fragility rather than a hygiene issue, and out of scope here.

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