chore: sync core lib and CLAUDE.md from agent-core

[avifenesh]

Automated sync of lib/ and CLAUDE.md from agent-core.

---

Note

Medium Risk
Changes file write behavior in the auto-fixer to reject symlink targets, which could affect repos that legitimately use symlinks and may surface new errors during fix/restore operations. The change is security-motivated and reduces risk of unintended writes to sensitive paths.

Overview
Hardens lib/enhance/fixer.js against symlink attacks by adding assertNotSymlink() and using it to refuse reading/writing fix targets and their .backup siblings.

applyFixes() now checks for symlinks before reading and again immediately before writing (plus before creating backups), and restoreFromBackup() similarly blocks restoring when either the backup or target path is a symlink; assertNotSymlink is exported for reuse/testing.

^{Reviewed by Cursor Bugbot for commit 8027446. Configure here.}

[gemini-code-assist]

Warning

You have reached your daily quota limit. Please wait up to 24 hours and I will start processing your requests again!