Fix #1413 IC3 carried-row reentry - #1428

Summary

• Fixes [POST-RERUN] #880 residual: joined row aggregation bucket #1413 IC3/cross-country carried-row reentry shape: WITH person, collect(city) AS cities MATCH ...
• Admits multiple post-reentry WITH stages for the single-reentry IC3 suffix
• Carries collected node-entity lists through whole-row reentry and evaluates both friendCity IN cities and NOT friendCity IN cities
• Keeps optional-match collect(x) whole-row null cases in the validation-failure bucket for both direct RETURN and downstream WITH
• Adds adversarial regressions for collect(city), collect(DISTINCT city), CASE aggregation, post-aggregate filtering, TCK optional aggregate boundaries, positive same-city membership, direct collected-entity rendering, and cuDF reentry smoke
• Fixes a CI mypy 2.0 blocker in graphistry/_version.py by annotating the Versioneer handler registry

Validation

• PYTHONPATH=/home/lmeyerov/Work/clients/diana/varsity/.venv/lib/python3.12/site-packages python3 -m pytest -q graphistry/tests/compute/gfql/cypher/test_lowering.py::test_issue_1413_ic3_cross_country_carried_row_collect_list_reentry_case_sum graphistry/tests/compute/gfql/cypher/test_lowering.py::test_issue_1413_ic3_collect_distinct_entity_membership_with_post_aggregate_where graphistry/tests/compute/gfql/cypher/test_lowering.py::test_issue_1413_ic3_entity_membership_positive_same_city_friend_only graphistry/tests/compute/gfql/cypher/test_lowering.py::test_issue_1413_ic3_collect_whole_row_entities_render_after_binding_grouping graphistry/tests/compute/gfql/cypher/test_lowering.py::test_string_cypher_failfast_optional_match_collect_null_whole_row_return_boundary graphistry/tests/compute/gfql/cypher/test_lowering.py::test_string_cypher_failfast_optional_match_collect_null_whole_row_with_boundary graphistry/tests/compute/gfql/cypher/test_lowering.py::test_string_cypher_failfast_relationship_whole_row_grouped_count_star_boundary -> 7 passed
• PYTHONPATH=/home/lmeyerov/Work/clients/diana/varsity/.venv/lib/python3.12/site-packages python3 -m pytest -q graphistry/tests/compute/gfql/cypher/test_lowering.py -k '(issue_1413 or optional_match_collect_null_whole_row or failfast_relationship_whole_row_grouped_count_star_boundary) and not cudf' -> 11 passed
• PYTHONPATH=/home/lmeyerov/Work/clients/diana/varsity/.venv/lib/python3.12/site-packages python3 -m pytest -q graphistry/tests/compute/gfql/cypher/test_lowering.py -k 'not cudf' -> 911 passed, 88 deselected
• python3 -m ruff check graphistry/tests/compute/gfql/cypher/test_lowering.py -> passed
• PYTHONPATH=/home/lmeyerov/Work/clients/diana/varsity/.venv/lib/python3.12/site-packages python3 -m py_compile graphistry/tests/compute/gfql/cypher/test_lowering.py -> passed
• PYTHONPATH=/home/lmeyerov/Work/clients/diana/varsity/.venv/lib/python3.12/site-packages python3 bin/ci_cypher_surface_guard.py -> passed
• python3 -m py_compile graphistry/_version.py -> passed
• python3 -m ruff check graphistry/_version.py graphistry/tests/compute/gfql/cypher/test_lowering.py -> passed
• python3 -m mypy graphistry/_version.py -> passed
• git diff --check -> passed
• DGX Spark RAPIDS matrix via ssh dgx-spark: MATRIX_CELLS="25.02:gfql 26.02:gfql" WITH_IMAGE_BUILD=0 WITH_GPU=1 WITH_LINT=0 WITH_TYPECHECK=0 WITH_TEST=1 PROFILE=gfql TEST_FILES="..." ./test-rapids-official-matrix.sh -> 25.02/gfql PASS, 26.02/gfql PASS on 8 focused tests
• GitHub PR checks on f2b79d1b -> green, including tck-gfql, Cypher gates, Python lint/type matrix, docs, core, pandas/polars, Spark, Neo4j, and full-ai jobs

Notes

• Surface guard baseline line-count update is intentional for this compiler slice; dataclass/API surface counts are unchanged.
• origin/master last checked at 1520a728424fdc0c54fa507f912e3e24aa7953f7; merge-base with PR head is unchanged, so no rebase is needed.