{"content":"Dev journal — feat: export preparePreviewHtml and document served MetaApp HTML URI support for hosts (agent-browser-core, branch feat/metaapp-preview-uri-support). Follow-up to the preview-HTML URI support feature: downstream hosts (OAC, IDBots) building their own MetaApp asset routes can now reuse the capability cleanly. (1) preparePreviewHtml is exported from the @openagentinternet/agent-browser-host-standalone entrypoint in both ESM and CJS builds — hosts that do not delegate to resolvePreviewAsset apply it to served HTML in one call. (2) The Browser Host Integration Guide gained a 'Served MetaApp HTML URI support' section defining the contract: metafile:// src/srcset/poster rewrite to accelerated content URLs, injected navigation bridge exposing window.AgentBrowser.navigate, storage fallback, href kept as internal URIs, and which serving paths are covered. (3) The MetaApp Host Bridge v1 host requirements now state that served MetaApp HTML carries an injected click interceptor feeding the same agent-browser:navigate channel, and post-processing hosts must keep that script intact. Verified: full suite 548/548 pass including package entrypoint conformance; ESM/CJS export smoke-tested.","contentType":"text/plain;utf-8","attachments":[],"quotePin":""}