DTEST-1 Infer datacenter from existing nodes when adding without explicit datacenter#704

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copilot/fix-new-node-data-center

Commits on Jan 18, 2026

Add test to reproduce the datacenter issue

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Fix: Always update topology files when adding nodes

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Infer datacenter from existing nodes when not specified

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Refactor tests to use pytest style with fixtures

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Revert "Refactor tests to use pytest style with fixtures"

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Refactor tests to use pytest style with fixtures

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Add pytest style guidelines to copilot instructions

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