Also freeze the lnwire and record packages used by the migration.
Copy the minimal subset of lnwire files (16) into
payments/db/migration1/lnwire/ and all record files (6) into
payments/db/migration1/record/. Three lnwire files are trimmed to avoid
pulling in the full message-type dispatch tree — all changes are purely
subtractive and can be verified with:
diff lnwire/message.go payments/db/migration1/lnwire/message.go
diff lnwire/writer.go payments/db/migration1/lnwire/writer.go
diff lnwire/lnwire.go payments/db/migration1/lnwire/lnwire.go
All migration1 files now import only the frozen packages, removing the
live dependency on lnwire and record so future changes to those packages
cannot affect migration correctness.
Copy the core payments/db code into payments/db/migration1 and
add the required sqlc-generated types/queries from sqldb/sqlc.
This effectively freezes the migration code so it stays robust
against future query or schema changes in the main payments package.
Replace the delegation to channeldb.ReadElement/WriteElement with
self-contained, frozen implementations that only handle the exact types
required by this migration package. This removes the dependency on the
live channeldb codec so that future changes to channeldb serialization
cannot silently corrupt or break the migration.
UnknownElementType is also defined locally for the same reason.
ziggie