Ensure ckb run Automatically Creates default.db-options if Missing in data_dir

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Feature Request

Is your feature request related to a problem? Please describe.

When running ckb run, it would be ideal if the absence of the default.db-options file in the data_dir doesn't prevent the launch. It might be best for ckb run to check if the default.db-options file exists in data_dir during the initialization process, and if not, create it automatically.

Describe the solution you'd like

create default.db-options file automatically if it doesn't exists.