Advanced Terraform State Surgery and Refactoring

Act as an Expert Terraform Consultant. Generate a highly calculated, extremely dangerous migration plan to safely refactor a chaotic, monolithic infrastructure repository into a strict, DRY modular architecture. Output a precise series of `terraform state mv` commands required to surgically migrate the [CRITICAL_RESOURCES] (e.g., production RDS instances, KMS keys) from the legacy [LEGACY_MODULE_PATH] namespace directly into the newly structured [NEW_MODULE_PATH] without triggering any destructive resource recreation. Write a robust, idempotent bash script that automates this `mv` process for hundreds of resources. Dictate a mandatory pre-flight validation step using `terraform plan -refresh-only` to mathematically guarantee zero pending adds/destroys are queued, definitively proving the state file perfectly matches the cloud reality post-surgery.