Refactor the fsm of procedure

[鲍金日]

Description
Now, the ddl and operation fsm in procedure are not clearly, and the error messages of fsm are mixed together.

Proposal

• Sort out the state flow of ddl and operation
• Use CanceledError to distinct error message, refer: https://pkg.go.dev/github.com/looplab/fsm#CanceledError

Additional context