2 new commits pushed to

<https://github.com/jmpsec/osctrld/tree/develop|develop>

by javuto

<https://github.com/jmpsec/osctrld/commit/6513115675e25542198c36cc4e9b53ecd8d2fc13|65131156>

- Upgrade hardening: temp download sweep, extension cleanup on rollback, snapshot restore guard

<https://github.com/jmpsec/osctrld/commit/84228e653f4cc72018ef5fcc51e5d91cd2e35e49|84228e65>

- Merge pull request #32 from jmpsec/hardening-followups jmpsec/osctrld