EXP: open up the RocksDB to playing about

[ctb]

Needed for https://github.com/ctb/2025-explore_sourmash_rocksdb

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 87.99%. Comparing base (73f125b) to head (63f7c57).

Files with missing lines	Patch %	Lines
src/core/src/index/revindex/mod.rs	66.66%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           latest    #3468   +/-   ##
=======================================
  Coverage   87.99%   87.99%           
=======================================
  Files         136      136           
  Lines       22230    22230           
  Branches     2225     2225           
=======================================
  Hits        19561    19561           
  Misses       2356     2356           
  Partials      313      313           

Flag	Coverage Δ
hypothesis-py	25.43% <ø> (ø)
python	92.32% <ø> (ø)
rust	81.95% <66.66%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.