* simplify RDAgent conf
* add unified cacher(untested)
* fix small bugs
* fix a bug
* fix a small bug in runner
* use hash_key = None to skip cache
* fix CI
* in factor execution, ignore cache when raise exception
* add file locker to avoid mp calling
* fix CI
* use function __module__ name as folder in cache
* Add a table & factor debug
* Congfig setting
* Update env example and configuration list.
Also change api priority
* Add a TODO for the rst
* CI: shorter line
* Update docs/installation_and_configuration.rst
* Update docs/installation_and_configuration.rst
* Update links & standard config
* Add TODO
* Fix bug
* Update rdagent/oai/llm_utils.py
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Co-authored-by: you-n-g <you-n-g@users.noreply.github.com>