julien
8266e5b172
## Summary
[ADR-0025](docs/decisions/0025-authorization-model-privileges-roles-scopes.md) shipped the authorization model with three stubs explicitly deferred to a follow-up ADR:
- `Principal.user.id` and `Principal.user.personId` carry the Entra `oid` as a placeholder — `apps/portal-bff/src/auth/principal-builder.ts` documents the seam.
- `StubScopeResolver` returns `[{ kind: 'unrestricted' }]` for every signed-in user; the per-persona scope values documented in `notes/test-tenant-role-assignments.md` have nowhere to live.
- `@RequireScope`'s `ScopableResource` shape references an `Etablissement` / `Delegation` / `Region` chain that has no Prisma table.
ADR-0026 specifies the portal-side data model that closes those stubs. **Decision-only, status `proposed`** — implementation lands in two PRs once accepted.
## What lands
| File | Change |
| --- | --- |
| `docs/decisions/0026-person-user-portal-data-model.md` | New ADR. MADR 4.0.0 format. Tags: `data`, `backend`, `security`. ~310 lines. |
| `docs/decisions/README.md` | One new index row for 0026 (status `proposed`, 2026-05-24). |
## ADR scope
The ADR commits the **schema** for:
- **`Person`** golden record — stable identity, can exist without a portal account (Pléiades pre-provisioning, dossier bénéficiaires, alumni). `source` field tracks provenance (`self-signin` in v1; `pleiades` / `acteurs-plus` join the catalogue with ADR-0027).
- **`User`** portal-account overlay — one-to-zero-or-one with Person, lazy-created on first OIDC callback. Portal-only state (`lastSignInAt`, future a11y preferences) rides here, not on the shared Person row.
- **`UserScope`** — confirms the migration whose shape ADR-0025 §"Sources of truth — apf_portal-side `user_scopes` table" already specified.
- **`Region` / `Delegation` / `Etablissement`** — organisational hierarchy with externally-meaningful codes (INSEE / French dept / FINESS) as primary keys, matching the on-the-wire shape of the scope literals (`etablissement:0330800013`, `delegation:33`).
The ADR **explicitly defers**:
- Facet schemas (`Salarie`, `Adherent`, `Benevole`, `Elu`, `Beneficiaire`, `PartenaireExterne`) — they track upstream-system shape and ride alongside their producing sync.
- Pléiades / Acteurs+ sync logic, reconciliation policy between sync-owned and admin-UI-owned fields.
Both deferrals point at **ADR-0027** (Pléiades + Acteurs+ syncs + facet schemas) as the next-up ADR.
## Notes for the reviewer
- **Why `Person` + `User` split and not a single table.** The "Considered Options" section walks through this. Option A (User-only) breaks down the moment a dossier holder who never signs in needs a stable identifier. Option D (Person with embedded facet columns) forces every Pléiades or Acteurs+ schema change through a table that both shapes share, which is exactly the kind of coupling that ADR-0027 needs the freedom to design out.
- **Why externally-meaningful primary keys for the hierarchy.** `Region.code` / `Delegation.code` / `Etablissement.finess` are INSEE / FINESS codes — stable across reorgs and already on every URL the portal will mint. Adding a separate UUID would force every consumer to indirect through it for no gain. The trade-off (no in-place rename — if a délégation merges, delete + re-insert with the new code) is bounded by how rarely INSEE rebases.
- **Lazy User creation at first sign-in.** v1 has no Pléiades data; the OIDC callback creates the Person + User pair the first time it sees a new `oid`. When Pléiades sync ships (ADR-0027), the same provisioner extends with a `Person.externalId` lookup before falling back to `email`. The schema does not change between the two regimes — only the provisioner's lookup order does.
- **`Person.source` and `Etablissement.kind` as enum-as-string + drift-gate extension.** The catalogue-drift gate ([ADR-0025 §"Confirmation"](docs/decisions/0025-authorization-model-privileges-roles-scopes.md) and `scripts/check-catalogue-drift.mjs`) was built precisely to constrain hand-edited string columns. Extending it to assert every `Person.source` write is in the closed catalogue closes one of the soft spots in the v1 schema without standing up a Postgres ENUM.
- **PII posture.** `Person.firstName` / `lastName` / `email` are flagged in the ADR's Decision Drivers. The Pino redact list ([ADR-0012](docs/decisions/0012-observability-pino-opentelemetry.md)) and the audit-log salt ([ADR-0013](docs/decisions/0013-audit-trail-separated-postgres-append-only.md)) already cover Entra `oid`; the new PII fields ride the same posture (caller-redacted at the audit module, redacted at the Pino logger before the line ships).
- **What "two PRs" means in the More Information section.** PR 1: Prisma schema migration + `PersonAndUserProvisioner` called from `SessionEstablisher` + drift-gate extension. PR 2: `PrismaScopeResolver` replacing `StubScopeResolver` + `/admin/users/:id/scopes` screen + `prisma/seed.ts` populating the 19 test-tenant personas' `user_scopes` rows.
- **Backward compatibility for in-flight Redis sessions.** Sessions minted before the schema migration carry a Principal whose `user.id` is the Entra `oid` placeholder. The legacy-session bridge in [`apps/portal-bff/src/auth/principal-extractor.ts`](apps/portal-bff/src/auth/principal-extractor.ts) (added in #208) already handles this — when the migration deploys, those sessions continue to work for the 12 h absolute-TTL window, after which every session in Redis has the real `personId`.
## Open questions to resolve before acceptance
These were flagged in the ADR text and are worth surfacing here for the review pass:
- **`Person.email` as the v1 dedup key.** The ADR's "Bad, because" item — two Pléiades records sharing an email would crash the unique constraint. ADR-0027 will add the `externalId` precedence, but in the interim the v1 lazy-creator either trusts emails-are-unique (acceptable for the test tenant where every persona has a distinct one) or skips the dedup attempt and creates a fresh Person per `oid`. The ADR currently picks the dedup-by-email path; flag if the safer choice is "always fresh, reconcile later".
- **Should `Region` / `Delegation` / `Etablissement` migrations be seeded as part of the schema PR, or kept as a separate dataset import?** The ADR is silent on this; my default is "seed the geographic codes APF actually operates in" (a one-off SQL fixture in the migration directory). Worth confirming.
## Test plan
- [x] `pnpm exec prettier --check docs/decisions/0026-person-user-portal-data-model.md docs/decisions/README.md` — clean.
- [ ] **Review focus** — the chosen Option B vs the rejected A/C/D, the deferred facets list, the `Person.source` catalogue, the `Etablissement.kind` catalogue, and the two open questions above.
- [ ] Once accepted, the implementation phasing in the ADR's `§More Information` opens (2 PRs).
## What's next
- **This PR** — ADR-0026 ships as `proposed`.
- **Acceptance PR** — review pass, address open questions, promote `proposed → accepted` (same cadence as [#201 → #205](docs/decisions/0025-authorization-model-privileges-roles-scopes.md) for ADR-0025).
- **Implementation PR 1** — Prisma schema + lazy provisioner.
- **Implementation PR 2** — `PrismaScopeResolver` + admin-UI scope-seeding + test-tenant seed.
- **ADR-0027** — Pléiades + Acteurs+ syncs + facet schemas (the deferred surface from this ADR).
---------
Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr>
Reviewed-on: #213
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Architectural Decision Records
This project records architecturally-significant decisions as ADRs in the MADR 4.0.0 format. References: adr.github.io.
Why ADRs
ADRs capture the why behind a decision — context, drivers, options considered, trade-offs accepted — at the moment the decision is made. They make architecture reviewable, onboarding faster, and prevent the same debate from being re-litigated later.
Conventions
- Format: MADR 4.0.0. Start from template.md.
- Filename:
NNNN-kebab-case-title.md, e.g.0007-adopt-tailwind-for-design-tokens.md. - Numbering: globally sequential 4-digit prefix. Numbers never reset, never get reused — even when an ADR is superseded or deprecated.
- Layout: flat folder. ADRs are not nested into category subfolders; topical organization happens via tags.
- Tags: every ADR carries a
tags:array in the MADR frontmatter, drawn from the tag vocabulary below. An ADR may carry several tags. Propose new tags (or renames) in the same PR that needs them; never invent ad-hoc tags inline. - Status lifecycle:
proposed→accepted→ optionallydeprecatedorsuperseded by [ADR-NNNN](NNNN-other.md). Update the YAML frontmatter; never delete an ADR. - Index maintenance: every ADR addition or status change must update the Index below in the same commit.
When to write an ADR
Write one whenever a development decision is non-trivial: tool or library choice, framework pattern, security control, perf budget, a11y target, naming convention, deprecation, breaking change, or any choice that future contributors would benefit from understanding the why of.
Tag vocabulary
The vocabulary below is the source of truth. It is intentionally coarse — propose extensions only when an existing tag genuinely doesn't fit, and avoid overly narrow tags.
| Tag | Scope |
|---|---|
frontend |
UI, Angular, components, design system, client-side state |
backend |
API, BFF, server-side services |
security |
AuthN, AuthZ, sessions, CSP, dependency scanning, secret management |
performance |
Perf budgets, caching, bundle size, Lighthouse |
accessibility |
WCAG, a11y testing, keyboard, ARIA, contrast |
infrastructure |
CI/CD, hosting, deployment, runtime |
observability |
Logs, metrics, traces, correlation IDs, monitoring |
data |
Persistence, schemas, migrations, data flow |
process |
Team conventions, workflows, repo policy |
Status: starter vocabulary, to be refined as ADRs accumulate. Update this table whenever a tag is added, renamed, or retired.
Index
ADRs are listed in numerical order. To slice by topic, filter on the Tags column.
| # | Title | Status | Tags | Date |
|---|---|---|---|---|
| 0001 | Use ADRs to record architectural decisions | accepted | process |
2026-04-29 |
| 0002 | Adopt Nx monorepo with the apps preset |
accepted | infrastructure, frontend, backend |
2026-04-29 |
| 0003 | Workspace and app naming convention | accepted | process |
2026-04-29 |
| 0004 | Frontend stack — Angular (latest LTS), standalone, zoneless, Signals, CSR-only, Vitest | accepted | frontend |
2026-04-29 |
| 0005 | Backend stack — NestJS over Express, Fastify, Hono | accepted | backend |
2026-04-29 |
| 0006 | Persistence — PostgreSQL with Prisma | accepted | data, backend |
2026-04-29 |
| 0007 | Pre-commit hooks and Conventional Commits | accepted | process |
2026-04-29 |
| 0008 | Identity model — multi-tenant Entra ID for workforce, dual-audience design for future External ID | accepted | security, data |
2026-04-29 |
| 0009 | Authentication flow — OIDC Authorization Code + PKCE via MSAL Node, BFF session pattern | accepted | security, backend |
2026-04-29 |
| 0010 | Session management — opaque session IDs in cookies, payload in self-hosted Redis with AES-GCM at rest | accepted | security, backend, infrastructure |
2026-04-29 |
| 0011 | MFA enforcement — Entra ID Conditional Access baseline, BFF claim sanity-check, step-up hooks designed-in | accepted | security |
2026-04-29 |
| 0012 | Observability — Pino structured logs + OpenTelemetry tracing, W3C Trace Context propagation, stdout + collector | accepted | observability, backend, frontend |
2026-04-29 |
| 0013 | Audit trail — separated append-only Postgres schema, decoupled from app logs | accepted | security, observability, data |
2026-04-29 |
| 0014 | Downstream API access — On-Behalf-Of pattern, unified DownstreamApiClient, audience-aware authorization |
accepted | security, backend |
2026-04-29 |
| 0015 | CI/CD pipeline — Gitea Actions, trunk-based + squash-merge, thin YAML over portable scripts | accepted | infrastructure, process |
2026-04-30 |
| 0016 | Accessibility baseline — WCAG 2.2 AA + targeted AAA, Angular CDK + spartan-ng + Tailwind, APF panel testing | accepted | accessibility, frontend, process |
2026-04-30 |
| 0017 | Performance budgets — Core Web Vitals + Lighthouse CI gates, bundle budgets, BFF p95/p99 SLOs | accepted | performance, frontend, backend, process |
2026-04-30 |
| 0018 | Environment configuration — Angular environment.ts, BFF env vars, audit pool split |
accepted | frontend, backend, infrastructure, process |
2026-05-10 |
| 0019 | Internationalisation — @angular/localize, build-time per-locale bundles, /fr + /en path-based routing |
accepted | frontend, accessibility, performance, process |
2026-05-11 |
| 0020 | portal-admin — dedicated SPA for portal administration, sharing the existing BFF |
accepted | frontend, backend, security, infrastructure, process |
2026-05-11 |
| 0021 | Phase-2 security baseline — helmet, CORS allowlist, double-submit CSRF, rate limiting, structured error envelope | accepted | security, backend |
2026-05-13 |
| 0022 | Documentation site — VitePress + Mermaid plugin, separate static deployment | accepted | process, infrastructure |
2026-05-15 |
| 0023 | Charts + dashboards — D3 + Observable Plot wrapped in libs/shared/charts |
accepted | frontend, accessibility, performance |
2026-05-16 |
| 0024 | AI service relay — vendored gRPC protos, NestJS gRPC client, SSE bridge to the SPA, POC unsigned principal | accepted | backend, security, observability |
2026-05-19 |
| 0025 | Authorization model — three orthogonal axes (privileges × functional roles × scopes), Entra-backed | accepted | security, backend, data |
2026-05-20 |
| 0026 | Person golden record + User portal-account + organisational hierarchy — portal-side data model |
proposed | data, backend, security |
2026-05-24 |