Add partial refreshes

[n8maninger]

Alternative to #298 and #299.

The main concern here is that devs will need to explicitly check the host is on a protocol version that supports it instead of it being implicit.

[Copilot]

Pull Request Overview

This PR adds support for partial refreshes in contract refreshes, providing an alternative to full rollover behavior. The change introduces a new RPCRefreshContractPartialRollover function that allows renters to set the allowance of the new contract explicitly without forcing an increase, bringing refresh behavior in line with form and renew operations.

Key changes:

• Adds RPCRefreshContractPartialRollover function alongside the existing full rollover mechanism
• Modifies server handler to support both partial and full refresh modes via a new RPC ID
• Updates the core dependency to include new refresh contract functions

Reviewed Changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
rhp/v4/server.go	Adds partial parameter to refresh handler and routes new RPC ID to partial refresh
rhp/v4/rpc.go	Implements new partial/full rollover functions and deprecates original refresh function
rhp/v4/rpc_test.go	Splits tests into separate partial and full rollover test functions
go.mod	Updates core dependency to version with new refresh contract functions
.changeset/add_rpcrefreshpartialrollover.md	Documents the breaking change and new functionality

Comments suppressed due to low confidence (1)

rhp/v4/rpc_test.go:462

• The original TestRPCRefresh test was renamed to TestRPCRefreshPartialRollover, but there's no test that validates the deprecated RPCRefreshContract function still works. Consider adding a test that ensures backward compatibility.

func TestRPCRefreshPartialRollover(t *testing.T) {