🛡️ Sentinel: [HIGH] Fix Path Traversal

[n24q02m]

🛡️ Sentinel: [HIGH] Fix Path Traversal in Sync State

🚨 Severity: HIGH
💡 Vulnerability: A path traversal vulnerability existed in internal/syncer/state.go's StatePathFor function. The target argument was concatenated directly into the file path string (fmt.Sprintf("%s-%s.json", target, safe)) without any sanitization, while the id string was correctly sanitized.
🎯 Impact: If a malicious or malformed target (e.g., containing ../) was passed to this function, an attacker could potentially write or read outside the intended .skret/sync-state/ directory, risking data exposure or corruption.
🔧 Fix: Utilized the existing local sanitizeID function on the target parameter before utilizing it in fmt.Sprintf to securely neutralize the path traversal vector.
✅ Verification: Verified by running the full test suite (go test -race -cover ./...), which passed. The change is isolated and safe, adding no external dependencies.

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PR created automatically by Jules for task 4872499011057179810 started by @n24q02m

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Codecov Report

✅ All modified and coverable lines are covered by tests.

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