Add resume-here checklist for removing the provider PoV lemmas
Records the precise, ordered steps to make this PR faithful to the top-down plan: delete the Certs-PoV provider modules (Certs/Properties/PoV and PoVLemmas, which are #1210's work), drop their imports from Certs/Properties, and lift the facts they provide (CERTS-pov, and later CERTS-coinFromDeposits-updateCertDeposits) to module parameters in Entities.Properties.PoV and the LEDGER-PoV module. Notes that Utxo/Utxow-PoV are already absent (deferred to #1189) and already parameterized, flags the Conway-side touches to re-check, and cross-references the separate coinFromGovDeposit re-derivation. Prose only; to be executed in a session with the Agda toolchain so each step can be typechecked. https://claude.ai/code/session_0174ZBS1RKAGSbBXDsESUwoA