Feat/websub hub#36

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feat/websub-hub

Commits on Jun 14, 2026

docs: plan WebSub hub support roadmap

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docs(websub): record async-202 ADR and WebSub vocabulary

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feat(core): parse and validate WebSub hub.* subscribe requests

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feat(core): verify WebSub subscriber intent with a challenge GET

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feat(core): add async-202 accept seam for WebSub subscriptions

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feat: wire the WebSub subscribe front door (core dispatcher + express)

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feat(server): mount the WebSub hub front door

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test(e2e): cover the WebSub subscribe handshake end-to-end

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feat: distribute feed content to WebSub subscribers on fan-out

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test(e2e): prove an rssCloud ping fans out to both protocols

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feat: sign WebSub deliveries with X-Hub-Signature

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test(e2e): verify X-Hub-Signature over the delivered body

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feat: intent-verify WebSub unsubscribe before removal

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test(e2e): cover the WebSub unsubscribe handshake

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feat: honor WebSub lease requests, clamped to configured bounds

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test(e2e): cover WebSub lease clamping and expiry

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