Files
temetro/backend/.env.example
T
Khalid Abdi 3a7378e00d backend: AI chat agent with Veil PHI safeguard (providers, /chat, import)
Real LLM chat replacing the mock, backend-centric per the plan:

- Multi-provider API-key mode (OpenAI / Anthropic / Gemini via the AI SDK) plus
  local Ollama (OpenAI-compatible endpoint). Provider is derived from the
  picked model id; the matching stored key is used. New user_ai_settings table
  holds per-user config with provider API keys encrypted at rest (AES-256-GCM,
  src/lib/crypto.ts, keyed by AI_CREDENTIALS_KEY).
- POST /api/ai/config (get/put, secrets never returned), POST /api/ai/test
  (Ollama ping / key presence), POST /api/ai/import (approved migration commit,
  re-validated server-side, reuses the audited patient service).
- POST /api/chat: streamText agent with tools (getPatient, getPatientLabs,
  searchPatients, previewImport). Real record data streams to the clinician as
  custom data parts (cards) while the model sees only Veil-redacted results.
- Veil (src/services/ai/veil.ts): de-identifies patient identifiers to tokens
  before external calls, resolves tokens on tool args, and rehydrates the final
  answer. Bypassed for local Ollama. External mode runs non-streamed so the
  rehydrated text is correct. Every call is audited (provider + Veil level).
- Shared role-scoping helpers extracted to src/lib/role-scope.ts (reused by the
  patient routes and chat tools so visibility rules match).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-13 18:35:16 +03:00

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# --- Database -------------------------------------------------------------
# When running via docker compose, "db" is the Postgres service hostname.
# For running the backend directly on your host, use localhost:5432.
DATABASE_URL=postgres://temetro:temetro@db:5432/temetro
# --- Better Auth ----------------------------------------------------------
# Generate a strong secret (min 32 chars): openssl rand -base64 32
BETTER_AUTH_SECRET=replace-me-with-openssl-rand-base64-32
# Public base URL of THIS backend (used for auth callbacks & cookies).
BETTER_AUTH_URL=http://localhost:4000
# --- AI ------------------------------------------------------------------
# Key used to encrypt at-rest AI provider API keys (per-user, set in the app's
# Settings → AI). Generate one: openssl rand -base64 32. Rotating it forces
# users to re-enter their provider keys.
AI_CREDENTIALS_KEY=replace-me-with-openssl-rand-base64-32
# --- App ------------------------------------------------------------------
# The frontend origin — used for CORS, Better Auth trustedOrigins, and the
# links embedded in verification / reset / invitation emails.
FRONTEND_URL=http://localhost:3000
PORT=4000
NODE_ENV=development
# Host port Postgres is published on by docker compose. Change it if 5432 is
# already in use on your machine (the app still talks to Postgres internally).
POSTGRES_PORT=5432
# --- Email (optional) -----------------------------------------------------
# If SMTP_HOST is unset, emails (verify/reset/invite) are printed to the
# server console instead of being sent — zero setup for local development.
# SMTP_HOST=smtp.example.com
# SMTP_PORT=587
# SMTP_USER=
# SMTP_PASS=
# SMTP_FROM="temetro <no-reply@temetro.local>"