chore(git): internalize tree ref resolver

[benvinegar]

Summary

• remove the unused public export from the tree-ref helper
• retain the helper for internal diff endpoint resolution
• add an empty maintenance changeset

This is the direct-to-main replacement for #1047, which GitHub marked merged only into the now-merged note-fix branch.

Validation

• bun run format:check
• bun run typecheck
• bun run knip
• bun test packages/hunk-git/src/commands.test.ts

[vercel]

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1 Skipped Deployment

Project	Deployment	Actions	Updated
hunk-web	Ignored		Sep 8, 2026 12:22pm UTC

[greptile-apps]

Greptile Summary

This PR internalizes an implementation-only Git tree reference resolver without changing its behavior.

• Removes the unused export modifier from resolveGitTreeRefAsync.
• Retains the helper for internal diff endpoint resolution.
• Adds the documented empty changeset for a maintenance-only change.

Confidence Score: 5/5

The PR appears safe to merge because it only removes an unused module-level export from a private package and preserves all runtime behavior.

The resolver remains available to its sole internal caller, is absent from the package's public entry point, and the empty changeset is appropriate for this non-release maintenance change.

Important Files Changed

Filename	Overview
packages/hunk-git/src/commands.ts	Makes an internally used tree reference resolver module-private; no public entry point or repository caller depends on the removed export.
.changeset/clean-git-tree-export.md	Adds an empty maintenance changeset consistent with the repository's release policy.

_{Reviews (1): Last reviewed commit: "chore(git): internalize tree ref resolve..." | Re-trigger Greptile}