Add buy back

* add update_currency_metadata function

* fix: 🐛 correct update_currency_metadata weight

* Add vtoken exchange rate rpc

* add the use of Vec

* Bifrost v0.10.0

* fix: 🐛 clippy

* Fix chain spec (#1243)

* Upgrade to polkadot-v1.7.0

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Co-authored-by: SunTiebing <[email protected]>
Co-authored-by: Edwin Wang <[email protected]>

* update the exchange rate of vtokenminting of vtokenvoting test

* Resolve the frozen anomaly when unlocking

This reverts commit 489fc9c.

* Fix compile

* Reconstruct integration tests and slp supports XCMv4

* Fix slp construct_xcm_message

* SLPx mint support commission id

* remove the channel_id parameter from the mint method

* add mint_with_channel_id method

* perform data migration for OrderQueue storage

* slpx: set the default value of channel_id to 0

* resolve conflicts

* change the location of the old data structure during storage migration

* Add vtoken exchange rate rpc

* add the use of Vec

* supplement the RPC logic && fix bugs

* adjust the RPC exchange rate precision to three decimal places

* fix clippy

* SLPx mint support commission id

* remove the channel_id parameter from the mint method

* add mint_with_channel_id method

* perform data migration for OrderQueue storage

* slpx: set the default value of channel_id to 0

* resolve conflicts

* change the location of the old data structure during storage migration

* fix bug: storage migration anomaly

* Slp removes refund

* Fix clippy

* Add vtoken exchange rate rpc

* add the use of Vec

* supplement the RPC logic && fix bugs

* adjust the RPC exchange rate precision to three decimal places

* fix clippy

* supplement omissions: adjust the RPC exchange rate precision to three decimal places

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