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Add three per-user AI settings, all configured in the app (no new env vars), behind one migration (0198): - Response timeout (seconds). A per-user upstream timeout threaded onto the provider call. A local/self-hosted backend can take more than the legacy 60 s default to load a model on the first request, which timed the Coach out before the first token. Defaults to a generous ~180 s when unset; validated to 10–600 s. - True token streaming for the local OpenAI-compatible client. The client now POSTs with stream:true and parses the SSE delta chunks, emitting tokens as they arrive, with a per-idle-gap timeout instead of a whole-call ceiling and a graceful fallback to the buffered path when a server cannot stream. The Coach route runs the provider call inside the response stream behind a keepalive heartbeat so a reverse proxy no longer idle-drops the connection during model load or generation. Grounding, refusal, and sentinel-stripping still run on the complete reply before any token reaches the client. - Dedicated document-scan (Lab-OCR) provider. Off by default — the OCR path uses the main provider chain. When enabled, lab-report processing resolves a separate provider/model/key, with a hint when the chosen model is not vision-capable. The new key column is AES-256-GCM at rest and registered in the encrypted-columns registry and the rotation script. i18n: EN + DE translations for the new Settings → AI strings (other locales carry interim copies to keep locale parity green).
docs/ — internal reference + operator playbooks
The user-facing documentation lives at https://docs.healthlog.dev — that's the canonical surface for self-hosting guides, integration walkthroughs, AI-provider setup, and the doctor-report workflow.
The files in this directory are the internal operator playbooks, audit notes, and machine-readable specs that ship alongside the source:
api/— the OpenAPI 3.1 spec for the native-client subset (iOS DTO codegen target). Seeapi/README.mdfor the preview commands.ops/— backup / restore + encryption-key-rotation playbooks. These are the runbooks an operator reaches for during an incident.self-hosting/— horizontal-scaling notes (HEALTHLOG_PROCESS_TYPE=web|worker|all) and the deploy-pipeline recipe. Routine install steps stay ondocs.healthlog.dev.migration/— release-by-release migration notes. Read the entry for the version you're upgrading from.audit/— per-release audit summaries archived for forensic traceability.apple-store-connect-checklist.md— the iOS submission gate.doctor-report.md— PDF generator design notes.codex-protocol-spec.md— Codex / ChatGPT OAuth protocol reverse-engineering notes.ui-guidelines.md— UI / a11y house style.
If you're a self-hoster looking to spin up an instance, start at https://docs.healthlog.dev or jump to the Quick Start in the project README.