Keep relative ESM imports exact, restrict Node legacy probes to .js/.json/.node, and treat empty package main as absent. Stop Node package-main lookup before nested package reinterpretation, while retaining generic artifact inference.
Replace stale recursive and .cjs probe expectations. Verify CLI and MCP graph results against real Node 24 runtime controls, including exact suffixes, index fallback, and nested package main refusal.
Refs #2020, #2021, #2022
