Convert EverythingServer to use Streamable HTTP#709

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mdk/everythingserver-http

Commits on Aug 14, 2025

Convert EverythingServer to use Streamable HTTP
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Commits on Aug 15, 2025

Commits on Sep 8, 2025

Commits on Sep 12, 2025

Move subscription management to a dedicated class and add subscription cleanup on session end
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