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>

templates/apt/update-analyze.sh.tpl

@@ -0,0 +1,30 @@
+#!/bin/sh
+# Refresh index + simulations upgrade/dist-upgrade + held + reboot-check.
+# Exécuté entier sous sudo par la couche SSH. Non destructif.
+export LC_ALL=C
+export DEBIAN_FRONTEND=noninteractive
+{{#aptProxy}}export http_proxy="{{aptProxy}}"; export https_proxy="{{aptProxy}}"
+{{/aptProxy}}
+
+echo "===SU:APT_UPDATE==="
+apt-get update -qq 2>&1
+UPD=$?
+
+echo "===SU:APT_SIM_UPGRADE==="
+apt-get -s -y upgrade 2>&1
+
+echo "===SU:APT_SIM_DISTUPGRADE==="
+apt-get -s -y dist-upgrade 2>&1
+
+echo "===SU:APT_HELD==="
+apt-mark showhold 2>/dev/null
+
+echo "===SU:REBOOT==="
+if [ -f /run/reboot-required ] || [ -f /var/run/reboot-required ]; then
+  echo "REBOOT_REQUIRED=1"
+  [ -f /var/run/reboot-required.pkgs ] && sed 's/^/PKG=/' /var/run/reboot-required.pkgs
+else
+  echo "REBOOT_REQUIRED=0"
+fi
+
+echo "===SU:EXIT=${UPD}==="