o Major bugfixes (compression, security):
    - Fix an infinite loop when decompressing a truncated zlib/gzip stream with
      done=1. A truncated stream never reaches Z_STREAM_END, causing zlib to
      return Z_BUF_ERROR with no input remaining, which buf_add_compress()
      mistook for a full output buffer and retried forever. Fixed by returning
      TOR_COMPRESS_ERROR in that case so the caller can abort cleanly.
      TROVE-2026-021. Fixes bug 41274; bugfix on 0.2.6.1-alpha.