When the auto-AI-read opt-in is on, a freshly uploaded document is summarised
once in the background and the encrypted summary is stored and shown on the
document detail view.
- A background step runs after upload alongside the existing content-index and
thumbnail steps. It generates a short (3-4 sentence) plain-language summary
only when the user's documentsAutoAiRead opt-in is on (that flag is also the
standing AI-egress consent), skips a document that already has one, and
no-ops when no vision provider is configured. It reuses the same provider
resolution, egress-consent re-assertion, and AI-budget reserve/reconcile
helpers as the on-demand route; a provider error refunds the reservation and
never fails the upload.
- The summary is stored encrypted (summaryEncrypted Bytes) with a
summaryGeneratedAt timestamp on inbound_documents, registered for key
rotation, and returned decrypted in the document detail response.
- The on-demand transient summary route is unchanged.
Gated by the same consent, budget, and module checks.
