Deep Architecture Audit - FilterGroup Operators vs Native Frappe

[ruzaqiarkan-eng]

Presents a detailed comparative audit of FilterGroup / DB filters against native Frappe and FlexiRule's in-memory condition evaluation engines. Outlines operator mapping, semantic differences, structural compatibility, and proposes a layered operator registry architecture.

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PR created automatically by Jules for task 13787836974983630385 started by @ruzaqiarkan-eng

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