v0.8.0-beta

fix: Slow lower search functionality and cost.py fix (#22)

* Initial implementation

* Updated inline comments

* Fix cost.py bug, adapt the fact_relationship to new schema

* Update changelog and pyproject.toml

* Additional bits in the Changelog

* Include new oa-configurator and fix version

* Include reference for cluster

* ANALYZE at the end

* Index dropping fix

* Update uv.lock

* index handling check if exists

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Co-authored-by: gkennos <georgina.kennedy@unsw.edu.au>