Julien Gautier
428d19f60f
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Lands the BFF-side skeleton for the apf-ai-service relay per ADR-0024, step 2 of the chantier (skeleton + tests against an in-process fake gRPC server; no live HTTP endpoint yet — that ships in the SSE-bridge PR). What ships: - contract/proto vendoring at apps/portal-bff/src/grpc/proto/apf-ai/ (common, chat, rag, ingestion, models). pnpm run grpc:sync refreshes from the sibling apf-ai-service tree; both .proto and the ts-proto TypeScript stubs under grpc/gen/ are committed for hermetic builds and reviewable diffs. - Codegen via pnpm run grpc:codegen using grpc-tools' bundled protoc and ts-proto (outputServices=grpc-js, esModuleInterop, forceLong, useOptionals=messages). Generated tree is excluded from Prettier and ESLint so hand-rules do not chase codegen output. - assertAiServiceConfig() pre-flight validator alongside the other config validators (AI_SERVICE_GRPC_ENDPOINT, AI_SERVICE_CLIENT_ID, AI_SERVICE_GRPC_TLS). - AiClientModule provides ChatClient / RagClient / IngestionClient / ModelsClient wrappers, a GrpcMetadataBuilder that stamps every call with x-client-id + x-correlation-id (W3C trace-id from OTel when a span is active, explicit override or UUID fallback otherwise), and a PrincipalMapper that hashes the Entra oid via HashUserIdService so the proto Principal.subject matches audit.events.actor_id_hash exactly (ADR-0013 cross-reference contract). - Specs cover: env validator, principal mapper, metadata builder (OTel span / override / fallback paths), chat client streaming + cancellation against an in-process fake gRPC ChatService, rag client unary happy path + error propagation, and module bootstrap. AiClientModule is NOT imported in AppModule yet — the SSE-bridge controller and its live route ship in the next PR.