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Julien Gautier f9a061e6f8 feat(ci): catalogue-drift gate for @RequirePrivilege/@RequireRole literals (ADR-0025)
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Phase 3 of the ADR-0025 phasing per its §"More Information" §347:
a small CI gate that asserts every string literal passed to the
authorization decorators belongs to the closed catalogue declared
in libs/shared/auth/src/lib/authorization.types.ts.

The TypeScript signature on the decorators already enforces this
at compile time — the new gate is defence-in-depth against escape
hatches (`as Privilege` casts, hand-edits to the type union
without updating the runtime constant). It runs in <1s, so it
rides the existing `check` CI job rather than starting its own.

Implementation:
- scripts/check-catalogue-drift.mjs: TypeScript compiler API.
  Parses authorization.types.ts to extract the catalogue arrays,
  walks every .ts file under apps/ and libs/, finds each
  CallExpression whose callee identifier matches @RequirePrivilege
  or @RequireRole, validates every string-literal argument.
  Non-literal args (variable indirection) are skipped on purpose —
  the TypeScript signature catches them at compile time and the
  gate's value-add is on literal misspellings. Generated gRPC
  stubs under apps/portal-bff/src/grpc/gen are skipped (their
  `roles[]` field is a wire-format unrelated to the catalogue).
  Reports grouped by file with line:column for each violation,
  exits 1 on drift.
- scripts/check-catalogue-drift.spec.mjs: 13 tests via node:test
  (built-in, no Vitest dependency). Covers catalogue parsing,
  file-level violation detection, workspace-wide aggregation,
  skipped folders, gen-stub exclusion, line/column reporting.
- package.json: ci:catalogue-drift + ci:catalogue-drift:test
  scripts.
- .gitea/workflows/ci.yml: the `check` job now runs the gate's
  unit tests (first, to fail fast if the gate itself is broken)
  then the gate against the live workspace.

Self-tested by injecting `RequirePrivilege('Portal.RogueDrift')`
and `RequireRole('rogue-role-x')` into an existing spec — both
caught with file:line:column and exit code 1.

Test plan:
- pnpm ci:catalogue-drift:test: 13/13 green.
- pnpm ci:catalogue-drift: clean (4 privileges, 24 roles).
- pnpm nx affected -t format:check lint test build: no project affected (script lives outside Nx).
2026-05-24 00:59:57 +02:00
julien 9b7d16601d feat(portal-bff): ai-client skeleton — vendored protos + grpc client + Principal mapper (#195)
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## Summary

Step 2 of the AI-relay chantier (after [ADR-0024](docs/decisions/0024-ai-service-relay-grpc-sse-bridge.md) merged in #194). Lands the BFF-side **skeleton** that talks to `apf-ai-service` over gRPC: vendored protos, generated TypeScript stubs, typed wrapper clients, Principal mapper, and metadata builder — all tested against an in-process fake gRPC server. **No HTTP route is exposed in this PR**; the SSE bridge (`POST /api/ai/chat`, `GET /api/ai/rag/search`, `GET /api/ai/models`) ships in the next PR.

The skeleton is self-contained: `AiClientModule` is built but is NOT imported in `AppModule` yet. The BFF runtime is byte-for-byte unchanged. Everything below exists for the next PR to wire into a controller.

## What lands

### Proto vendoring + codegen

- `apps/portal-bff/src/grpc/proto/apf-ai/` — mirror of `apf-ai-service/contract/proto/` (common, chat, rag, ingestion, models). Both the `.proto` files and the regenerated `ts-proto` output under `grpc/gen/` are committed for hermetic builds and reviewable diffs (per ADR-0024 §"Sub-decision 3").
- `pnpm run grpc:codegen` — regenerates the stubs via `grpc-tools`' bundled `protoc` and the `ts-proto` plugin (`outputServices=grpc-js, esModuleInterop, forceLong=long, useOptionals=messages, exportCommonSymbols=false`).
- `pnpm run grpc:sync` — copies the vendored `.proto` files from the sibling `apf-ai-service` working tree (`../apf-ai-service/contract/proto/`); developer convenience, never invoked from CI. Errors with an actionable message when the sibling tree is not where it expects.
- Generated tree (`grpc/gen/**`) excluded from Prettier (`.prettierignore`) and ESLint (`eslint.config.mjs` ignores). Hand-rules apply to wrappers under `ai-client/`, not to codegen output.

### Dependencies

- `@grpc/grpc-js@^1.13.0` — runtime gRPC client.
- `@bufbuild/protobuf@^2.10.2` — wire codec used by `ts-proto`'s emitted code.
- `long@^5.2.3` — int64 representation for proto Long fields (`forceLong=long`).
- `ts-proto@^2.7.0` — devDep, TypeScript codegen plugin.
- `grpc-tools@^1.13.0` — devDep, ships `protoc` + the gRPC plugin; added to `pnpm.onlyBuiltDependencies` so the postinstall binary download runs.

### Env validator

`apps/portal-bff/src/config/check-ai-service-config.ts` follows the same posture as the other validators (per ADR-0018 §"BFF env-var loading"): small, per-key, runs at module init, throws with an actionable message on misconfiguration. Three vars:

| Var | Mandatory | Purpose |
|---|---|---|
| `AI_SERVICE_GRPC_ENDPOINT` | yes | `host:port` reachable from the BFF — `apf-ai-service:8080` in dev Compose, service DNS + 443 in prod |
| `AI_SERVICE_CLIENT_ID` | yes | Deployment slug propagated as the `x-client-id` metadata. Convention: `apf-portal-<env>` |
| `AI_SERVICE_GRPC_TLS` | no (default `true`) | `false` for h2c in dev, `true` for h2 + TLS in prod |

7 spec cases lock the validation contract end-to-end.

### `AiClientModule`

`apps/portal-bff/src/grpc/ai-client/` houses:

- **`tokens.ts`** — DI tokens (`AI_CONFIG`, `AI_CREDENTIALS`, one per generated stub).
- **`principal.mapper.ts`** — `PrincipalMapper.fromInputs({oid, tid, roles, extraAttributes})` returns the proto `Principal`. `subject` is hashed via `HashUserIdService` (the **same** salt + algorithm the audit writer uses) so `Principal.subject` matches `audit.events.actor_id_hash` byte-for-byte. `roles` passes through verbatim — inclusive expansion lands with a future role-hierarchy ADR; the wire contract on the AI side is unchanged.
- **`grpc-metadata.builder.ts`** — stamps every outbound call with `x-client-id` (from config) and `x-correlation-id` (active OTel span's trace-id when present, else explicit override, else fresh UUID).
- **`chat.client.ts`** — server-stream wrapper around `ChatServiceClient`. Returns the raw `ClientReadableStream<ChatEvent>` (Node `Readable` is async-iterable so the SSE bridge consumes with `for await`). Optional `AbortSignal` propagates browser disconnect to `call.cancel()`.
- **`rag.client.ts`**, **`models.client.ts`**, **`ingestion.client.ts`** — unary promisified wrappers. `IngestionClient` is unused in v1 (the admin "manage AI corpus" surface lands later) but wired now so the future controller is one new file, not a new module.
- **`ai-client.module.ts`** — NestJS module wiring the providers. `HashUserIdService` is declared locally rather than imported via `AuditModule` (the global module) to keep the module unit-testable in isolation; runtime equivalence is guaranteed by the service being a pure function of `LOG_USER_ID_SALT`.

### Tests

5 new spec files, 18 new test cases. All run against in-process fake gRPC servers; no network, no live `apf-ai-service`:

- `check-ai-service-config.spec.ts` — 7 cases (happy path + 6 rejection branches).
- `principal.mapper.spec.ts` — 7 cases including the cross-service hash-stability invariant and the `tenantId` reserved-key contract.
- `grpc-metadata.builder.spec.ts` — 5 cases covering all three correlation-id resolution paths and metadata immutability.
- `chat.client.spec.ts` — 4 cases: happy-path stream, metadata propagation, mid-stream cancel via AbortSignal, pre-aborted signal.
- `rag.client.spec.ts` — 2 cases: unary happy path, `ServiceError` propagation.
- `ai-client.module.spec.ts` — 4 cases: module bootstrap, all four wrappers resolved, env-driven `AI_CONFIG`, shared credentials across stubs.

**Total BFF spec suite: 443 → 461 (after merge accounting), all passing.**

## Notes for the reviewer

- **Why both `.proto` and generated `.ts` are committed.** Hermetic builds. Reviewers see both sides of a contract change in one diff. CI never runs codegen — drift between proto and stub would otherwise hide behind a successful build. The drift gate that compares the vendored copy against an upstream tag of `apf-ai-service` is the post-v1 follow-up listed in ADR-0024's "What's next".
- **`HashUserIdService` declared locally in `AiClientModule`.** Two instances of the service exist when both `AuditModule` (global) and `AiClientModule` are wired into `AppModule`. The cost is one extra constructor call at bootstrap; the value is full test isolation of `AiClientModule` and a self-contained Principal-mapping boundary. The cross-service hash join invariant from ADR-0013 still holds because the service is a pure function of the `LOG_USER_ID_SALT` env var.
- **`AiClientModule` is NOT imported by `AppModule`.** Deliberately. The skeleton compiles, type-checks, and unit-tests cleanly with no runtime side effects. The next PR (SSE bridge controller) adds the `imports: [AiClientModule]` line + the controller, in one focused change.
- **`ts-proto` flat-oneof emission.** `ChatEvent` is generated with optional siblings (`token?`, `citation?`, `done?`, …) rather than a discriminated union (`$case: 'token'`). The flatter shape composes more naturally with the SSE writer the next PR will introduce (`event:` field name maps directly to the populated sibling).
- **Cancellation test deliberately relaxed.** The "AbortSignal already aborted before call dial" test asserts the client-side outcome (no payload, error or clean end) but not server-side observation. gRPC-js may or may not propagate a cancel frame depending on whether the call had time to dial — both outcomes are correct per the contract; only the absence of payload matters.
- **Lifecycle (`onApplicationShutdown`) deferred.** The module does not close the gRPC channel on shutdown today. Process termination closes the sockets via OS-level descriptor reclaim — sufficient for dev/preprod. The next PR wires the module into `AppModule` and adds an explicit Nest lifecycle hook in the same change (paired with `app.enableShutdownHooks()` in `main.ts`).

## Test plan

- [x] `pnpm run grpc:codegen` — clean regeneration. Generated tree byte-identical to what's committed.
- [x] `pnpm nx test portal-bff` — **443 specs pass** (was 425).
- [x] `pnpm nx lint portal-bff` — clean. The eslint ignore for `grpc/gen/**` covers ts-proto's relaxed style; hand-written `ai-client/` files pass the project's full rule set.
- [x] `pnpm nx build portal-bff` — clean, webpack-compiled. No bundle-size delta on the runtime artefact yet (the module is unimported).
- [x] `pnpm install` — lockfile reconciled; `grpc-tools` postinstall fetches `protoc` from the precompiled-binaries mirror without errors on Linux x64.
- [ ] **Manual smoke (next PR)** — once the SSE bridge ships, point `AI_SERVICE_GRPC_ENDPOINT` at the local `apf-ai-service` Compose service and run an end-to-end chat against the canned stub responses on the AI side. Not in scope for this PR.

## What's next

1. **PR — SSE bridge controller.** Wires `AiClientModule` into `AppModule`, adds `POST /api/ai/chat` (SSE), `GET /api/ai/rag/search`, `GET /api/ai/models`. Adds the `OnApplicationShutdown` hook + `enableShutdownHooks()`. Adds `apf-ai-service` to `infra/local/dev.compose.yml`. Promotes ADR-0024 from `proposed` to `accepted` and updates `CLAUDE.md`'s ADR roll-up.
2. **PR (frontend chantier)** — chatbot widget on `portal-shell` consuming the SSE endpoint.
3. **PR (post-v1)** — proto-drift CI gate diffing the vendored `proto/apf-ai/` against the upstream tag.
4. **Coordinated amendment** — when the first production deployment is in scope, both repos record the same prod-hardening choice (signed envelope or mTLS) on the same date.

---------

Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr>
Reviewed-on: #195
2026-05-19 21:30:04 +02:00
julien aea395ae65 feat(ci): assert gzip transfer sizes against ADR-0017 budgets (#133)
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## Summary

Closes the ADR-0017 follow-up that was sitting on an unpushed local branch (`feat/ci/gzip-transfer-size-budgets`) for ~5 days, while ADRs 0018–0021 and the auth/admin/security tracks landed. Cherry-picked onto current `main`, with a small follow-up fix to make the script work against the locale-split build layout introduced by ADR-0019 between the two commits.

## What lands

### Commit 1 — `feat(ci): assert gzip transfer sizes against ADR-0017 budgets`

[`scripts/check-gzip-budgets.mjs`](scripts/check-gzip-budgets.mjs) — plain-Node, no deps, ~120 LOC at landing. Closes the ADR-0017 §Confirmation gap (Angular CLI's `budgets` only compare RAW sizes):

- Parses Angular's emitted `index.html` to separate **initial** assets (anything referenced via `src=` / `href=`) from **lazy** chunks (the rest).
- Gzips every JS / CSS file at level 9 — what most HTTP servers serve for static assets — and reports a per-file + per-bucket table.
- Asserts the [ADR-0017](docs/decisions/0017-performance-budgets-lighthouse-ci.md) thresholds (`initial JS total ≤ 300 KB`, `any lazy chunk ≤ 100 KB`, `total CSS ≤ 150 KB`) and exits non-zero on any breach.
- Wired through:
  - `pnpm ci:gzip-budgets` invokes the script with the default dist path.
  - `ci:perf` chains build → gzip check → Lighthouse, so a budget breach short-circuits before Lighthouse even runs.

ADR-0017 §Confirmation also updated to point at the script instead of describing it as a "future follow-up".

### Commit 2 — `fix(ci): adapt gzip-budget check for the @angular/localize multi-bundle layout`

The original commit predated PR #91 / [ADR-0019](docs/decisions/0019-internationalisation-angular-localize.md), which made `@angular/localize` emit one self-contained bundle per locale under `dist/apps/portal-shell/browser/<locale>/`. The script looked for `index.html` directly under the dist root and failed with ENOENT on every build since.

Fix:

- Auto-detects layout. If `dist/index.html` exists → flat mode (unchanged behaviour, kept for single-locale apps like `portal-admin`). Otherwise enumerates immediate subdirectories with their own `index.html` and runs the check **per locale**.
- Budget thresholds apply per locale — each bundle is what the user's browser actually downloads. Aggregating across locales would understate the worst case.
- Violations across locales are collected + reported together with the locale tag prefixed so a single CI run surfaces every breach.
- ADR-0017 §Confirmation amendment expanded to spell out the per-locale check + cite ADR-0019.

## Test plan

- [x] `node --check scripts/check-gzip-budgets.mjs` — syntax OK.
- [x] `pnpm ci:gzip-budgets` against the current production build:
  - 2 locale bundles detected (`en`, `fr`).
  - Initial JS total: ~141 KB / 300 KB budget ✓ (each locale).
  - CSS total: 4.62 KB / 150 KB budget ✓ (each locale).
  - Largest lazy chunk: 1.55 KB / 100 KB per-chunk budget ✓.
- [x] No conflict on `package.json` despite 11 PRs touching it since the branch base — cherry-pick auto-merged cleanly.
- [ ] CI: `pnpm ci:perf` end-to-end (build → gzip-budgets → Lighthouse). Validates on the runner.

## Notes for the reviewer

- The script lives at the repo root under `scripts/` rather than as an Nx target — it's a pure CI helper, not project-scoped. Matches the existing `ci:audit` / `ci:commits` pattern in `package.json`.
- No dependencies added. Uses `node:fs/promises` and `node:zlib`.
- The original branch (`feat/ci/gzip-transfer-size-budgets`) is preserved in local-only state for paranoia; once this PR merges, it can be `git branch -D`'d.

---------

Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr>
Reviewed-on: #133
2026-05-14 16:22:54 +02:00