Rust-native package map import-kind aware condition set

[jununfly]

This was generated by AI during triage.

Parent

• Roadmap plan: docs/plans/2026-06-22-rust-native-typescript-module-resolution-roadmap.md
• Package map condition plan: docs/plans/2026-06-22-rust-native-package-map-condition-set-completion.md
• Roadmap node: 1-4-3. condition set handling for repo-local source

What to build

Use reliable Rust-extracted import reference information to distinguish ESM import/export-from from CommonJS require() when selecting repo-local package map conditions. ESM import/export-from should use the import runtime condition. CommonJS require() should use the require runtime condition. Unknown import kinds should default to import and remain explainable in diagnostics.

This issue should not become a broad extractor rewrite. It should use existing extractable reference shape where reliable and avoid guessing for ambiguous shapes.

Acceptance criteria

• ESM static import and export-from package map references select the import runtime condition.
• CommonJS require() package map references select the require runtime condition where the Rust extraction path can reliably identify them.
• Unknown import references default to import and remain visible/explainable in diagnostics.
• Deterministic Rust fixtures cover ESM import, export-from, CJS require, and unknown/default behavior.
• Existing package exports / imports, patterns, nested conditions, and customConditions behavior remains intact.
• No broad import extractor rewrite or node_modules graph expansion is introduced.

Blocked by

• Rust-native package map shared condition selection helper #451
• Rust-native package map customConditions for repo-local targets #452

[jununfly]

This was generated by AI during triage.

Closing as implemented. CommonJS require module references are extracted as import refs for this bounded package-map slice and use the require runtime condition, while ESM import/export stays on import.

Evidence: cargo test -p zcodegraph-core; closeout recorded in docs/benchmarks/2026-06-22-package-map-condition-set-closeout.md.