MV3 extension that captures the rendered active tab (via the shared
snapshot-extractor contract) and imports it into OpenPencil. Logic lives
in the new op-chrome-extension-core crate (wasm): endpoint rules,
chunked-transfer integrity, /mcp envelope + reply classification,
download-name sanitisation, SSO/account session parsing, and hub
snapshot-inbox delivery. JS is glue only (chrome.* APIs, fetch, popup
DOM, injected page functions).
Capture: full page + element pick. Delivery: local ingress
(POST /api/import/web-snapshot) with /mcp fallback, JSON download, and —
when signed in to OP Hub — the account snapshot inbox. Flat popup UI,
15-locale strings with an in-popup language switcher, store packaging.
Why a crate: keeps the security-sensitive logic in tested Rust rather
than glue JS, and the SW/popup split keeps dynamic import() out of the
service-worker graph (guarded by check-sw-imports).