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diff --git a/scripts/build-annotations-index.mjs b/scripts/build-annotations-index.mjs
new file mode 100644
index 0000000..9eca3c8
--- /dev/null
+++ b/scripts/build-annotations-index.mjs
@@ -0,0 +1,159 @@
+// scripts/build-annotations-index.mjs
+import fs from "node:fs/promises";
+import path from "node:path";
+import YAML from "yaml";
+
+function parseArgs(argv) {
+  const out = {
+    inDir: "src/annotations",
+    outFile: "dist/annotations-index.json",
+  };
+
+  for (let i = 0; i < argv.length; i++) {
+    const a = argv[i];
+
+    if (a === "--in" && argv[i + 1]) out.inDir = argv[++i];
+    else if (a.startsWith("--in=")) out.inDir = a.slice("--in=".length);
+
+    if (a === "--out" && argv[i + 1]) out.outFile = argv[++i];
+    else if (a.startsWith("--out=")) out.outFile = a.slice("--out=".length);
+  }
+  return out;
+}
+
+async function exists(p) {
+  try { await fs.access(p); return true; } catch { return false; }
+}
+
+async function walk(dir) {
+  const out = [];
+  const ents = await fs.readdir(dir, { withFileTypes: true });
+  for (const e of ents) {
+    const p = path.join(dir, e.name);
+    if (e.isDirectory()) out.push(...(await walk(p)));
+    else out.push(p);
+  }
+  return out;
+}
+
+function inferPageKeyFromFile(inDirAbs, fileAbs) {
+  // src/annotations/<page>.yml -> "<page>"
+  const rel = path.relative(inDirAbs, fileAbs).replace(/\\/g, "/");
+  return rel.replace(/\.(ya?ml|json)$/i, "");
+}
+
+function assert(cond, msg) {
+  if (!cond) throw new Error(msg);
+}
+
+function isPlainObject(x) {
+  return !!x && typeof x === "object" && !Array.isArray(x);
+}
+
+function normalizePageKey(s) {
+  // pas de / en tête/fin
+  return String(s || "").replace(/^\/+/, "").replace(/\/+$/, "");
+}
+
+function validateAndNormalizeDoc(doc, pageKey, fileRel) {
+  assert(isPlainObject(doc), `${fileRel}: document must be an object`);
+  assert(doc.schema === 1, `${fileRel}: schema must be 1`);
+  if (doc.page != null) {
+    assert(
+      normalizePageKey(doc.page) === pageKey,
+      `${fileRel}: page mismatch (page="${doc.page}" vs path="${pageKey}")`
+    );
+  }
+  assert(isPlainObject(doc.paras), `${fileRel}: missing object key "paras"`);
+
+  const parasOut = Object.create(null);
+
+  for (const [paraId, entry] of Object.entries(doc.paras)) {
+    assert(/^p-\d+-/i.test(paraId), `${fileRel}: invalid para id "${paraId}"`);
+
+    // entry peut être vide, mais doit être un objet si présent
+    assert(entry == null || isPlainObject(entry), `${fileRel}: paras.${paraId} must be an object`);
+
+    const e = entry ? { ...entry } : {};
+
+    // Sanity checks (non destructifs : on n’écrase pas, on vérifie juste les types)
+    if (e.refs != null) assert(Array.isArray(e.refs), `${fileRel}: paras.${paraId}.refs must be an array`);
+    if (e.authors != null) assert(Array.isArray(e.authors), `${fileRel}: paras.${paraId}.authors must be an array`);
+    if (e.quotes != null) assert(Array.isArray(e.quotes), `${fileRel}: paras.${paraId}.quotes must be an array`);
+    if (e.media != null) assert(Array.isArray(e.media), `${fileRel}: paras.${paraId}.media must be an array`);
+    if (e.comments_editorial != null) assert(Array.isArray(e.comments_editorial), `${fileRel}: paras.${paraId}.comments_editorial must be an array`);
+
+    parasOut[paraId] = e;
+  }
+
+  return parasOut;
+}
+
+async function readDoc(fileAbs) {
+  const raw = await fs.readFile(fileAbs, "utf8");
+  if (/\.json$/i.test(fileAbs)) return JSON.parse(raw);
+  return YAML.parse(raw);
+}
+
+async function main() {
+  const { inDir, outFile } = parseArgs(process.argv.slice(2));
+  const CWD = process.cwd();
+
+  const inDirAbs = path.isAbsolute(inDir) ? inDir : path.join(CWD, inDir);
+  const outAbs = path.isAbsolute(outFile) ? outFile : path.join(CWD, outFile);
+
+  // antifragile
+  if (!(await exists(inDirAbs))) {
+    console.log(`ℹ️  annotations-index: skip (input missing): ${inDir}`);
+    process.exit(0);
+  }
+
+  const files = (await walk(inDirAbs)).filter((p) => /\.(ya?ml|json)$/i.test(p));
+  if (!files.length) {
+    console.log(`ℹ️  annotations-index: skip (no .yml/.yaml/.json found in): ${inDir}`);
+    process.exit(0);
+  }
+
+  const pages = Object.create(null);
+  let paraCount = 0;
+
+  for (const f of files) {
+    const fileRel = path.relative(CWD, f).replace(/\\/g, "/");
+    const pageKey = normalizePageKey(inferPageKeyFromFile(inDirAbs, f));
+    assert(pageKey, `${fileRel}: cannot infer page key`);
+
+    let doc;
+    try {
+      doc = await readDoc(f);
+    } catch (e) {
+      throw new Error(`${fileRel}: parse failed: ${String(e?.message ?? e)}`);
+    }
+
+    const paras = validateAndNormalizeDoc(doc, pageKey, fileRel);
+
+    // 1 fichier = 1 page (canon)
+    assert(!pages[pageKey], `${fileRel}: duplicate page "${pageKey}" (only one file per page)`);
+    pages[pageKey] = { paras };
+    paraCount += Object.keys(paras).length;
+  }
+
+  const out = {
+    schema: 1,
+    generatedAt: new Date().toISOString(),
+    pages,
+    stats: {
+      pages: Object.keys(pages).length,
+      paras: paraCount,
+    },
+  };
+
+  await fs.mkdir(path.dirname(outAbs), { recursive: true });
+  await fs.writeFile(outAbs, JSON.stringify(out), "utf8");
+
+  console.log(`✅ annotations-index: pages=${out.stats.pages} paras=${out.stats.paras} -> ${path.relative(CWD, outAbs)}`);
+}
+
+main().catch((e) => {
+  console.error("FAIL: build-annotations-index crashed:", e);
+  process.exit(1);
+});
diff --git a/scripts/check-annotations-media.mjs b/scripts/check-annotations-media.mjs
new file mode 100644
index 0000000..20af451
--- /dev/null
+++ b/scripts/check-annotations-media.mjs
@@ -0,0 +1,97 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import YAML from "yaml";
+
+const CWD = process.cwd();
+const ANNO_DIR = path.join(CWD, "src", "annotations");
+const PUBLIC_DIR = path.join(CWD, "public");
+
+async function exists(p) {
+  try { await fs.access(p); return true; } catch { return false; }
+}
+
+async function walk(dir) {
+  const out = [];
+  const ents = await fs.readdir(dir, { withFileTypes: true });
+  for (const e of ents) {
+    const p = path.join(dir, e.name);
+    if (e.isDirectory()) out.push(...(await walk(p)));
+    else out.push(p);
+  }
+  return out;
+}
+
+function parseDoc(raw, fileAbs) {
+  if (/\.json$/i.test(fileAbs)) return JSON.parse(raw);
+  return YAML.parse(raw);
+}
+
+function isPlainObject(x) {
+  return !!x && typeof x === "object" && !Array.isArray(x);
+}
+
+function toPublicPathFromUrl(urlPath) {
+  // "/media/..." -> "public/media/..."
+  const clean = String(urlPath || "").split("?")[0].split("#")[0];
+  if (!clean.startsWith("/media/")) return null;
+  return path.join(PUBLIC_DIR, clean.replace(/^\/+/, ""));
+}
+
+async function main() {
+  if (!(await exists(ANNO_DIR))) {
+    console.log("✅ annotations-media: aucun src/annotations — rien à vérifier.");
+    process.exit(0);
+  }
+
+  const files = (await walk(ANNO_DIR)).filter((p) => /\.(ya?ml|json)$/i.test(p));
+  let checked = 0;
+  let missing = 0;
+  const notes = [];
+
+  for (const f of files) {
+    const rel = path.relative(CWD, f).replace(/\\/g, "/");
+    const raw = await fs.readFile(f, "utf8");
+
+    let doc;
+    try { doc = parseDoc(raw, f); }
+    catch (e) {
+      missing++;
+      notes.push(`- PARSE FAIL: ${rel} (${String(e?.message ?? e)})`);
+      continue;
+    }
+
+    if (!isPlainObject(doc) || doc.schema !== 1 || !isPlainObject(doc.paras)) continue;
+
+    for (const [paraId, entry] of Object.entries(doc.paras)) {
+      const media = entry?.media;
+      if (!Array.isArray(media)) continue;
+
+      for (const m of media) {
+        const src = String(m?.src || "");
+        if (!src.startsWith("/media/")) continue; // externes ok, ou autres conventions futures
+
+        checked++;
+        const p = toPublicPathFromUrl(src);
+        if (!p) continue;
+
+        if (!(await exists(p))) {
+          missing++;
+          notes.push(`- MISSING MEDIA: ${src} (from ${rel} para ${paraId})`);
+        }
+      }
+    }
+  }
+
+  if (missing > 0) {
+    console.error(`FAIL: annotations media missing (checked=${checked} missing=${missing})`);
+    for (const n of notes) console.error(n);
+    process.exit(1);
+  }
+
+  console.log(`✅ annotations-media OK: checked=${checked}`);
+}
+
+main().catch((e) => {
+  console.error("FAIL: check-annotations-media crashed:", e);
+  process.exit(1);
+});
diff --git a/scripts/switch-archicratie.sh b/scripts/switch-archicratie.sh
new file mode 100755
index 0000000..5fd8d60
--- /dev/null
+++ b/scripts/switch-archicratie.sh
@@ -0,0 +1,131 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# switch-archicratie.sh — SAFE switch LIVE + STAGING (avec backups horodatés)
+#
+# Usage (NAS recommandé) :
+#   sudo bash -c 'LIVE_PORT=8081 /volume2/docker/archicratie-web/current/scripts/switch-archicratie.sh'
+#   sudo bash -c 'LIVE_PORT=8082 /volume2/docker/archicratie-web/current/scripts/switch-archicratie.sh'
+#
+# Usage (test local R&D, sans NAS) :
+#   D=/tmp/dynamic-test LIVE_PORT=8081 bash scripts/switch-archicratie.sh --dry-run
+#   D=/tmp/dynamic-test LIVE_PORT=8081 bash scripts/switch-archicratie.sh
+
+usage() {
+  cat <<'EOF'
+SAFE switch LIVE + STAGING (avec backups horodatés).
+
+Variables / options :
+  LIVE_PORT=8081|8082         (obligatoire) port LIVE cible
+  D=/volume2/docker/edge/config/dynamic   (optionnel) dossier des yml Traefik dynamiques
+  --dry-run                   n'écrit rien, affiche seulement ce qui serait fait
+  -h, --help                  aide
+
+Exemples :
+  sudo bash -c 'LIVE_PORT=8082 /volume2/docker/archicratie-web/current/scripts/switch-archicratie.sh'
+  D=/tmp/dynamic-test LIVE_PORT=8081 bash scripts/switch-archicratie.sh --dry-run
+EOF
+}
+
+DRY_RUN=0
+for arg in "${@:-}"; do
+  case "$arg" in
+    --dry-run) DRY_RUN=1 ;;
+    -h|--help) usage; exit 0 ;;
+    *) ;;
+  esac
+done
+
+D="${D:-/volume2/docker/edge/config/dynamic}"
+F_LIVE="$D/20-archicratie-backend.yml"
+F_STAG="$D/21-archicratie-staging.yml"
+
+LIVE_PORT="${LIVE_PORT:-}"
+if [[ "$LIVE_PORT" != "8081" && "$LIVE_PORT" != "8082" ]]; then
+  echo "❌ LIVE_PORT doit valoir 8081 ou 8082."
+  usage
+  exit 1
+fi
+
+if [[ ! -f "$F_LIVE" || ! -f "$F_STAG" ]]; then
+  echo "❌ Fichiers manquants :"
+  echo "   $F_LIVE"
+  echo "   $F_STAG"
+  echo "   (Astuce R&D locale : mets D=/tmp/dynamic-test et crée 20/21 dedans.)"
+  exit 1
+fi
+
+OTHER_PORT="8081"
+[[ "$LIVE_PORT" == "8081" ]] && OTHER_PORT="8082"
+
+show_urls() {
+  local f="$1"
+  echo "— $f"
+  grep -nE '^\s*-\s*url:\s*".*"' "$f" || true
+}
+
+# Garde-fou : on attend au moins un "url:" dans chaque fichier
+grep -qE '^\s*-\s*url:\s*"' "$F_LIVE" || { echo "❌ Format inattendu dans $F_LIVE (pas de - url: \")"; exit 1; }
+grep -qE '^\s*-\s*url:\s*"' "$F_STAG" || { echo "❌ Format inattendu dans $F_STAG (pas de - url: \")"; exit 1; }
+
+echo "Avant :"
+show_urls "$F_LIVE"
+show_urls "$F_STAG"
+echo
+
+echo "Plan : LIVE -> $LIVE_PORT ; STAGING -> $OTHER_PORT"
+echo
+
+if [[ "$DRY_RUN" == "1" ]]; then
+  echo "DRY-RUN : aucune écriture."
+  exit 0
+fi
+
+TS="$(date +%F-%H%M%S)"
+cp -a "$F_LIVE" "$F_LIVE.bak.$TS"
+cp -a "$F_STAG" "$F_STAG.bak.$TS"
+
+# sed inplace portable (macOS vs Linux/DSM)
+sed_inplace() {
+  local expr="$1" file="$2"
+  if [[ "$(uname -s)" == "Darwin" ]]; then
+    sed -i '' -e "$expr" "$file"
+  else
+    sed -i -e "$expr" "$file"
+  fi
+}
+
+# Remplacement ciblé UNIQUEMENT sur la ligne - url: "http://127.0.0.1:808X"
+sed_inplace \
+  "s#^\([[:space:]]*-[[:space:]]*url:[[:space:]]*\"http://127\\.0\\.0\\.1:\\)808[12]\\(\"[[:space:]]*\)#\\1${LIVE_PORT}\\2#g" \
+  "$F_LIVE"
+
+sed_inplace \
+  "s#^\([[:space:]]*-[[:space:]]*url:[[:space:]]*\"http://127\\.0\\.0\\.1:\\)808[12]\\(\"[[:space:]]*\)#\\1${OTHER_PORT}\\2#g" \
+  "$F_STAG"
+
+# Post-check : on confirme que les fichiers contiennent bien les ports attendus
+grep -qE "http://127\.0\.0\.1:${LIVE_PORT}\"" "$F_LIVE" || {
+  echo "❌ Post-check FAIL : $F_LIVE ne contient pas http://127.0.0.1:${LIVE_PORT}"
+  echo "➡️ rollback backups : $F_LIVE.bak.$TS / $F_STAG.bak.$TS"
+  exit 1
+}
+grep -qE "http://127\.0\.0\.1:${OTHER_PORT}\"" "$F_STAG" || {
+  echo "❌ Post-check FAIL : $F_STAG ne contient pas http://127.0.0.1:${OTHER_PORT}"
+  echo "➡️ rollback backups : $F_LIVE.bak.$TS / $F_STAG.bak.$TS"
+  exit 1
+}
+
+echo "✅ OK. Backups :"
+echo "   - $F_LIVE.bak.$TS"
+echo "   - $F_STAG.bak.$TS"
+echo
+echo "Après :"
+show_urls "$F_LIVE"
+show_urls "$F_STAG"
+echo
+echo "Smoke tests :"
+echo "  curl -sS -I http://127.0.0.1:${LIVE_PORT}/ | head -n 12"
+echo "  curl -sS -I http://127.0.0.1:${OTHER_PORT}/ | head -n 12"
+echo "  curl -sS -I -H 'Host: archicratie.trans-hands.synology.me' http://127.0.0.1:18080/ | head -n 20"
+echo "  curl -sS -I -H 'Host: staging.archicratie.trans-hands.synology.me' http://127.0.0.1:18080/ | head -n 20"