update for agent-pay-contracts breaking changes

[hhl42]

Sync with the contracts repo's domain-binding hardening:

• Replace proto/entity.proto and regenerate entity.pb.go.
• Regenerate Go contract bindings (forge build + abigen).
• Set ChainId on every ConditionalPay we sign, and ChainId + LedgerAddress on every PaymentChannelInitializer; receivers reject mismatches before signing or forwarding so the cross-chain / wrong-ledger replay surface is closed off-chain too.
• Mirror the new walletId derivation (chainid prefix) in computePscID so off-chain channel IDs match what CelerLedger emits.
• Rename SimplexPaymentChannel.last_pay_resolve_deadline -> pay_clear_deadline (wire-compat, same tag 6) and update validators / printers. We only emit single-segment pay lists, so no clearMargin is added; comment at the assignment site flags where to add one if multi-segment support is ever introduced.

[Copilot]

Pull request overview

Updates agent-pay to match the latest contract/domain-binding changes so off-chain data structures, signatures, and derived IDs stay aligned with the contracts repo.

Changes:

• Extends payment and channel initializer protobufs/bindings with chain_id / ledger_address, and regenerates generated Go artifacts.
• Renames simplex deadline semantics from last_pay_resolve_deadline to pay_clear_deadline and updates validation/printing paths.
• Updates off-chain signing/open-channel logic to populate chain-aware fields and derive channel IDs with the new wallet ID formula.

Reviewed changes

Copilot reviewed 29 out of 30 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
utils/pbprint.go	Updates debug printers for renamed/open-channel fields.
server/server.go	Adds ChainId when admin token sends create pays.
server/osp_webapi_backend.go	Adds ChainId to OSP boolean-pay creation.
route/routerregistry/routerregistry.go	Regenerated binding header comment.
proto/entity.proto	Adds new proto fields and renames simplex deadline field.
messager/send_cond_pay_request.go	Updates simplex pending-pay deadline handling.
handlers/msghdl/handle_pay_settle_request.go	Renames settle-side deadline validation.
handlers/msghdl/handle_cond_pay_request.go	Adds pay chain-id validation and updates simplex checks.
go.sum	Removes unused dependency checksum entries.
go.mod	Drops unused go.uber.org/atomic dependency.
entity/entity.pb.go	Regenerated protobuf Go code for entity changes.
dispute/utils.go	Renames logged simplex deadline field.
dispute/dispute_channel.go	Renames simplex summary output field.
delegate/delegate.go	Adds ChainId to delegated token-send pays.
common/errs.go	Replaces old deadline error with chain-id/pay-clear errors.
cnode/open_channel.go	Binds initializers to chain/ledger and updates channel ID derivation.
client/api.go	Adds ChainId to client-created boolean pays.
chain/erc20.go	Regenerated binding header comment.
chain/channel-eth-go/wallet/wallet.go	Regenerated wallet binding for new wallet ID derivation.
chain/channel-eth-go/virtresolver/virtresolver.go	Regenerated binding header comment.
chain/channel-eth-go/routerregistry/routerregistry.go	Regenerated binding header comment.
chain/channel-eth-go/payresolver/payresolver.go	Regenerated pay resolver binding.
chain/channel-eth-go/payregistry/payregistry.go	Regenerated pay registry binding and renamed ABI parameter docs.
chain/channel-eth-go/migrate/migrate.go	Regenerated migrate binding.
chain/channel-eth-go/ledgerstruct/ledgerstruct.go	Regenerated ledger struct binding.
chain/channel-eth-go/ledger/ledger.go	Regenerated ledger binding for renamed deadline getter.
chain/channel-eth-go/ethpool/ethpool.go	Regenerated eth pool binding.
chain/channel-eth-go/channel/channel.go	Regenerated channel binding.
chain/channel-eth-go/balancelimit/balancelimit.go	Regenerated balance limit binding.

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[Copilot]

Pull request overview

Copilot reviewed 31 out of 32 changed files in this pull request and generated 1 comment.

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