rmcp-v3.0.0-beta.5

Fixed

• [breaking] remove server_info from DiscoverResult (#1065)
• preserve transient OAuth discovery HTTP errors (#1071)
• [breaking] preserve OAuth discovery transport errors (#1069)
• gate client handler bounds for local (#1068)

Other

• prepare for stable 3.0 release (#1073)
• RFC 9728 resource is used instead of base url when possible (#962)
• [breaking] remove deprecated v3 APIs (#1066)