fix: NumPy 2.0 compat shim for spycy in cypher module

[villelaitila]

Summary

• spycy <= 0.0.3 still references np.float_, removed in NumPy 2.0, so Cypher numeric functions (toInteger/toFloat/toString) and result conversion crash with AttributeError on NumPy >= 2.0.
• sgraph.cypher now restores the alias (np.float_ = np.float64) before importing spycy — a no-op on NumPy 1.x, where they were the same object. Marked for removal once a spycy release containing fix: NumPy 2.0 compatibility — replace removed np.float_ with np.float64 aneeshdurg/spycy#3 (the upstream one-line fix, submitted separately) is required.
• Adds a regression test (tests/test_cypher_numpy_compat.py, skipped when spycy is not installed) so a numpy/spycy upgrade cannot silently reintroduce the crash.

Test Plan

• New regression tests pass with released spycy 0.0.3 + NumPy 2.5.2 (current latest)
• Full suite: 556 passed

[softagram-bot]

Softagram Impact Report for pull/191 (head commit: 709906f)

TL;DR Arch. Impact: 1 | Changed code files: 2 | Directly impacted code files: 0

⭐ Change Overview

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🤖 AGENTS - machine-readable impact data (2 files changed, 0 impacted, +10/-0 deps)

Change overview

Head 709906fc4776 vs base 730a24eb1d06. 2 code files changed. 0 unchanged files directly depend on the changed files (see Impacted files). Dependencies: 10 added, 0 removed. New external components: 2. Removed external components: 0.

Added dependencies (10)

from	to	type	roles	signal
sgraph/src> sgraph/cypher.py	External/Python/numpy	import	prod→external	new external component
sgraph/tests/test_cypher_numpy_compat.py	sgraph/src> sgraph/cypher.py/cypher_query	import	test→prod	expands test coverage
sgraph/tests/test_cypher_numpy_compat.py	sgraph/src> sgraph/sgraph.py/SGraph	import	test→prod	expands test coverage
sgraph/tests/test_cypher_numpy_compat.py/build_model	sgraph/src> sgraph/sgraph.py/SGraph	typeref	test→prod	expands test coverage
sgraph/tests/test_cypher_numpy_compat.py/build_model	sgraph/src> sgraph/sgraph.py/SGraph	import	test→prod	expands test coverage
sgraph/tests/test_cypher_numpy_compat.py/test_to_float_and_to_string	External/Python/sgraph/cypher/cypher_query	import	test→external	new external component
sgraph/tests/test_cypher_numpy_compat.py/test_to_integer_in_where_and_return	External/Python/sgraph/cypher/cypher_query	import	test→external	new external component
sgraph/tests/test_cypher_numpy_compat.py	External/Python/Usual dependencies	import	test→external	external dependency
sgraph/tests/test_cypher_numpy_compat.py/test_to_float_and_to_string	sgraph/tests/test_cypher_numpy_compat.py/build_model	func_ref	test→test	regular
sgraph/tests/test_cypher_numpy_compat.py/test_to_integer_in_where_and_return	sgraph/tests/test_cypher_numpy_compat.py/build_model	func_ref	test→test	regular

Removed dependencies (0)

None.

Impacted files (0)

None.

Complete data

• Full dependency diff (JSON): https://opensource.softagram.com/cdn/impact/d20d45f2-ea4e-4ae4-a9ca-0f350bd8fac5_sgraph_191_impact_change_graph_vBR5TivLb44tf2TvhvCBZlAe4EENjJ.png_change_info.json
• Full report: https://opensource.softagram.com/dashboard/impact-reports/projects/d20d45f2-ea4e-4ae4-a9ca-0f350bd8fac5/reports/13bc7273-399d-4c05-a9f3-a4471848982a

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