56f561c436c24d35edaaa8ac9bee5c0ca66d2d93
Empty effective whitelist is rejected instead of falling back to all types; the whitelist is matched per extension against core's keys (mp3|m4a|m4b); a file moved into uploads is deleted when the attachment cannot be created; the import request resolves IPv4 only; empty temp name guard for URL imports. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7
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5.4 MiB