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Describe the enhancement you want to request

The documentation for the drizzle.config.ts > migrations section is missing the allowed values for the prefix attribute in the migrations object type definition. The structure should be documented as:

{ table: string, schema: string; prefix: "index" | "timestamp" | "supabase" | "unix" | "none" }

The default value remains { table: "__drizzle_migrations", schema: "drizzle", prefix: "index" }.

Please update the documentation to reflect the allowed values for the prefix attribute for better clarity on migrations configuration.