fix(gfql): strict binder post-WITH UNWIND traversal order (#1371 P1) - #1384

Summary

• fix FrontendBinder._bind_graph_sequence traversal for strict binder mode so post-WITH UNWIND resolves aliases from preceding WITH clauses in source order
• preserve existing loose-mode traversal behavior to avoid runtime regressions while strict rollout remains staged
• add strict regression coverage and remove obsolete parity/baseline cases for the resolved P1 gap
• add changelog development note

Scope

• Worker D / [META] Cypher binder coverage gaps blocking #1357 strict_name_resolution rollout #1371 P1 slice under [FEA] Cypher binder: enable strict-name-resolution to centralize alias-scope enforcement #1357

Validation

• python -m pytest -q graphistry/tests/compute/gfql/cypher/test_binder.py graphistry/tests/compute/gfql/cypher/test_binder_strict_compile_baseline.py graphistry/tests/compute/gfql/cypher/test_validator_runtime_strict_parity.py
• python -m pytest -q graphistry/tests/compute/gfql/cypher/test_lowering.py -k "unwind_after_with_into_post_with_match or unwind_with_carried_scalar_into_post_with_match or unwind_with_multiple_carried_scalars or distinct_unwind_with_carried_scalar or with_unwind_reentry_progresses_past_parser"
• ./bin/ruff.sh graphistry/compute/gfql/frontends/cypher/binder.py graphistry/tests/compute/gfql/cypher/test_binder.py graphistry/tests/compute/gfql/cypher/test_binder_strict_compile_baseline.py graphistry/tests/compute/gfql/cypher/test_validator_runtime_strict_parity.py
• ./bin/mypy.sh graphistry/compute/gfql/frontends/cypher/binder.py graphistry/tests/compute/gfql/cypher/test_binder.py