opencode1.18.8 mcp auth failed with reui #39343

PS C:\Users\xxxx> opencode --version
1.18.8

PS C:\Users\xxxx> opencode mcp auth reui       

┌  MCP OAuth Authentication
│
◇  reui already has valid credentials. Re-authenticate?
│  Yes
│
◇  Authorize in your browser:
│
●  https://reui.io/oauth/authorize?response_type=code&client_id=1a7d21e7-ae7e-46c1-9929-3a4f9a61a545&code_challenge=uPmV2ig79M61ucE5TYtlOy-94iKrmuc_Tn3js1Vsse4&code_challenge_method=S256&redirect_uri=http%3A%2F%2F127.0.0.1%3A19876%2Fmcp%2Foauth%2Fcallback&state=bd6b951e67de6bdc4d06f4830c7a86db3749906926abfa5f0d111b1f93a8528e&scope=mcp&resource=https%3A%2F%2Fmcp.reui.io%2F
│
◐  Waiting for authorization...[mcp-sdk] OAuthClientProvider does not implement saveDiscoveryState()/discoveryState(); the SEP-2352 callback-leg authorization-server binding cannot be checked. Implement discoveryState (persist alongside codeVerifier) — see docs/migration/upgrade-to-v2.md §SEP-2352.
■  Unexpected status: needs_auth

PS C:\Users\xxxx> Get-ComputerInfo -Property "*version"

WindowsCurrentVersion              : 6.3
WindowsVersion                     : 2009
OSDisplayVersion                   : 25H2
BiosBIOSVersion                    : {_ASUS_ - 1072009, G531GU.306, American Megatrends - 5000D}
BiosEmbeddedControllerMajorVersion : 0
BiosEmbeddedControllerMinorVersion : 12
BiosSMBIOSBIOSVersion              : G531GU.306
BiosSMBIOSMajorVersion             : 3
BiosSMBIOSMinorVersion             : 2
BiosSystemBiosMajorVersion         : 5
BiosSystemBiosMinorVersion         : 13
BiosVersion                        : _ASUS_ - 1072009
OsVersion                          : 10.0.26200
OsCSDVersion                       : 
OsServicePackMajorVersion          : 0
OsServicePackMinorVersion          : 0