Struct MigrateOptions 

pub struct MigrateOptions<'a> {
    pub from: &'a Path,
    pub to: &'a Path,
    pub dry_run: bool,
    pub now: SystemTime,
    pub tool_version: &'a str,
    pub allow_unsigned: bool,
}

Inputs. Paths are injected; the CLI resolves $HOME.

Fields

from: &'a Path

Legacy runtime root holding chain.rvf / chain.json (~/.clawft).

to: &'a Path

Destination chain directory (~/.weftos/chain).

dry_run: bool

Plan and verify the source only; write nothing.

now: SystemTime

Clock for the mixed-version guard.

tool_version: &'a str

Recorded in the marker (weaver version).

allow_unsigned: bool

Migrate even when chain.key is missing or the RVF signature cannot be verified against it.