feat: socle BDD (tâche 1.9 Phase 1-2) + moteur APT (tâche 2 SJ-0→3) + WIP capabilities/auth/Rust

Checkpoint multi-chantiers (arbre vert : tsc 0 erreur, 70 tests, build OK).
- tâche 1.9 Phase 1 : schéma socle (machine_state/events/reports/raw_artifacts/
  hardware/metrics + colonnes étendues) + wiring refresh/execute. Migration 0002.
- tâche 1.9 Phase 2 : machine_credentials + machine_host_keys (non destructif,
  dual-read + backfill). Migration 0003. Fix séquence journal de migration.
- tâche 2 : SJ-0 (types étendus rétro-compatibles, réducteur Docker, resolveTemplate),
  SJ-1 (update-analyze enrichi), SJ-2 (apply + diff dpkg + timeout inactivité SSH),
  SJ-3 (reboot vérifié boot_id).
- WIP parallèle inclus : /api/capabilities, auth/apiTokens/apiClients, system metrics,
  scaffold app_rust, ajustements frontend.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

server/auth/apiAuth.test.ts

@@ -0,0 +1,18 @@
+// server/auth/apiAuth.test.ts
+import { describe, expect, it } from "vitest";
+import { apiAuthInternals } from "./apiAuth.js";
+
+describe("apiAuthInternals", () => {
+  it("extrait un token bearer", () => {
+    expect(apiAuthInternals.extractBearerToken("Bearer su_token")).toBe("su_token");
+  });
+
+  it("accepte bearer sans sensibilité à la casse", () => {
+    expect(apiAuthInternals.extractBearerToken("bearer su_token")).toBe("su_token");
+  });
+
+  it("rejette un header absent ou mal formé", () => {
+    expect(apiAuthInternals.extractBearerToken(null)).toBeNull();
+    expect(apiAuthInternals.extractBearerToken("Basic abc")).toBeNull();
+  });
+});