MCP Router: protocols.stateless.maxSubscriptionDurationMs

maxSubscriptionDurationMs caps a stateless subscription stream’s lifetime.

• Type: Positive integer, in milliseconds
• Default: 900000 (15 minutes)

The actual deadline is the earlier of this configured duration and the authenticated credential’s exp time. Expired credentials reject registration with HTTP 401. The stream emits keep-alive comments every 15 seconds and a terminal completion frame at its deadline.