46b5d852dd
Delete docs/MILESTONES/M4/Seed/README.md and docs/MILESTONES/M4/Seed/seed.gql. The removed README provided instructions and inventory for the M4 validation DB seed and seed.gql contained the full @transaction GraphQL mutation used to populate that seed. Removes the M4 seed artifacts from the docs; restore from source control or consult the team if the seed is still required.