[`astria_sequencer::state_ext::StateExt`](https://github.com/astriaorg/astria/blob/8fa15cec0e8b4039470f64ad9ced6442075bc5f6/crates/astria-sequencer/src/state_ext.rs) contains a lot of entries for manipulating assets that should live in the recently introduced [`astria_sequencer::asset`](https://github.com/astriaorg/astria/tree/8fa15cec0e8b4039470f64ad9ced6442075bc5f6/crates/astria-sequencer/src/asset) module. ┆Issue Number: ENG-659
astria_sequencer::state_ext::StateExtcontains a lot of entries for manipulating assets that should live in the recently introducedastria_sequencer::assetmodule.┆Issue Number: ENG-659