0010. Live import progress polls over HTTP

• Status: accepted
• Date: 2026-10-16
• Decided by: Ulf (maintainer)

Context

Legacy import screens showed live progress over Socket.IO, a dependency of the removed upstream code.

Options considered

1. Keep Socket.IO — not recorded as weighed beyond its removal with the legacy code.
2. Poll over HTTP.

Recommendation at the time: not recorded.

Decision

Live import progress polls over HTTP. Socket.IO is removed.

Consequences

• One transport fewer to ship and secure.
• Progress updates arrive at the polling interval rather than instantly.
• The polling widget has an end-to-end test (a bug with unknown step states was fixed in review).

Links

Related: ADR 0008.