OHTTP Gateway
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OHTTP Config endpoint: /ohttp-keys
OHTTP Target endpoint: /gateway
OHTTP Echo endpoint: /gateway-echo
OHTTP Metadata endpoint: /gateway-metadata

None OHTTP (passthrough)
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PrivacyPass IssuerDirectory endpoint: /.well-known/private-token-issuer-directory
PrivacyPass TokenKey endpoint: /token-key-for-user-token
PrivacyPass Issue endpoint: /issue
PIR Key endpoint: /key
PIR Queries endpoint: /queries
PIR Config endpoint: /config
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