lstrip strips left / which results in ISSUER_URLauthorize

Motivation and Context

/.well-known/oauth-authorization-server output is weirld.

• expected: "authorization_endpoint": "https://$MY_ISSUER/authorize",
• actual: "authorization_endpoint": "https://$MY_ISSUERauthorize",

It seems lstrip is unnecessary for each OAuth endpoint

How Has This Been Tested?

Check following result:

curl $MY_MCP_SERVER/.well-known/oauth-authorization-server

{
  "issuer": "$MY_ISSUER",
  "authorization_endpoint": "$MY_ISSUERauthorize",   # / is missing between $MY_ISSUER and authorize
  "token_endpoint": "$MY_ISSUERtoken",
  "registration_endpoint": "$MY_ISSUERregister",
  "scopes_supported": [
    "openid"
  ],
  "response_types_supported": [
    "code"
  ],
  "grant_types_supported": [
    "authorization_code",
    "refresh_token"
  ],
  "token_endpoint_auth_methods_supported": [
    "client_secret_post"
  ],
  "revocation_endpoint": "$MY_ISSUERrevoke",
  "revocation_endpoint_auth_methods_supported": [
    "client_secret_post"
  ],
  "code_challenge_methods_supported": [
    "S256"
  ]
}

Breaking Changes

No

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Documentation
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have added or updated documentation as needed

Additional context