test: spec E2E mobile pour la page Configurations BUG-071

.env.example

@@ -51,7 +51,10 @@ OBSIGATE_ADMIN_PASSWORD=chab30
 # OBSIGATE_PDF_MAX_SIZE_MB=50        # PDFs plus volumineux = texte non indexé
 # OBSIGATE_PDF_EXTRACT_TIMEOUT=30    # secondes avant abandon de l'extraction
 
-# WebAuthn / MFA (ROADMAP #64) — nécessaire hors localhost
+# WebAuthn / MFA (ROADMAP #64) — par défaut rp_id/origines sont dérivés de la
+# requête (hôte exact, port inclus) : rien à configurer en accès direct.
+# À renseigner uniquement pour un accès via reverse-proxy sous un autre nom
+# (avec OBSIGATE_TRUST_PROXY=true pour X-Forwarded-Host/Proto) :
 # OBSIGATE_WEBAUTHN_RP_ID=obsigate.example.com
 # OBSIGATE_WEBAUTHN_RP_NAME=ObsiGate
 # OBSIGATE_WEBAUTHN_ORIGINS=https://obsigate.example.com

.gitea/workflows/ci.yml

@@ -40,6 +40,7 @@ jobs:
           node tests/frontend/unit.test.mjs
           node tests/frontend/pdf-viewer.test.mjs
           node tests/frontend/forge-completion.test.mjs
+          node tests/frontend/config-mobile.test.mjs
 
       - name: Frontend JSDOM tests (PaneManager + Excalidraw + Plugins + AI + SW + Collab + Mobile + Semantic + Desktop + Inline edition)
         run: |

CHANGELOG.md

@@ -6,7 +6,7 @@ Format basé sur [Keep a Changelog](https://keepachangelog.com/fr/1.1.0/),
 et [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 > **En cours de développement** : les changements à venir sont listés dans la section
-> [Unreleased](#unreleased). La dernière version livrée est **2.15.0**.
+> [Unreleased](#unreleased). La dernière version livrée est **2.16.5**.
 
 ---
 
@@ -14,6 +14,121 @@ et [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ---
 
+## [2.16.5] — 2026-09-22
+
+### Corrigé
+
+- **BUG-071 (complément) - spec E2E mobile de la page Configurations** :
+  `tests/e2e/config-mobile.spec.js` (nouveau, projet `chromium-mobile`,
+  ignoré en `chromium-desktop` comme `mobile-editor.spec.js`) : le hamburger
+  révèle le sommaire, le choix d'une section y défile + lien actif + repli
+  auto, aucun débordement horizontal à 393px. Vérifié en local contre
+  l'instance de test (port 2029, auth désactivée) : 3/3.
+
+---
+
+## [2.16.4] — 2026-09-22
+
+### Corrigé
+
+- **BUG-071 - Page « Configurations » inutilisable en mode mobile** : trois
+  causes. (1) Le sommaire (`#config-nav`) partageait la règle `.help-nav`
+  qui le masque sous 768px, mais — contrairement au Guide — la modale
+  n'avait aucun bouton pour l'afficher : aucun moyen d'atteindre une section.
+  Nouvel hamburger `#config-hamburger` dans l'en-tête (même traitement
+  `.help-hamburger` que le Guide, libellé traduit `config.toc_toggle`
+  FR/EN). (2) Les liens du sommaire étaient des ancres brutes sans JS :
+  `config.js` les intercepte désormais (défilement doux vers la section dans
+  la modale, lien actif, repli automatique du sommaire sur mobile, réinit à
+  l'ouverture). (3) Les grilles 2 colonnes (fournisseur/modèle IA, clé/modèle
+  par fournisseur), les rangées d'ajout à largeurs fixes (jetons, webhooks)
+  et les lignes webhook/jeton/partage en flex une ligne débordaient en
+  360px : bloc CSS mobile scopé `#config-modal` (1 colonne, wrap, largeurs
+  inline neutralisées, cibles tactiles 44px, sommaire plafonné à 46vh).
+  `data-i18n-attr` accepte désormais plusieurs paires `attr:clé` séparées
+  par `;` (titre + aria-label traduits). Tests :
+  `tests/frontend/config-mobile.test.mjs` (nouveau, 11 — hamburger, i18n,
+  câblage JS, CSS mobile, garde-fou ancres mortes façon BUG-067),
+  enregistré dans le CI.
+
+---
+
+## [2.16.3] — 2026-09-22
+
+### Corrigé
+
+- **BUG-070 - Activation clé physique WebAuthn impossible (« Validation du
+  credential WebAuthn échouée »)** : deux causes. (1) Les valeurs par défaut
+  (`rp_id localhost`, origines `http://localhost` sans port) rejetaient toute
+  URL réelle — logs : `Unexpected client data origin "http://localhost:2020",
+  expected one of ['http://localhost']`. `rp_id`/origines sont désormais
+  dérivés de la requête (hôte exact, port inclus ; `X-Forwarded-Host/Proto`
+  si `OBSIGATE_TRUST_PROXY=true`), la config explicite restant prioritaire
+  (`backend/auth/webauthn_mfa.py::resolve_relying_party`, appliqué aux 4
+  endpoints d'enregistrement et de login). (2) Challenge à usage unique
+  fragile au double-clic/retry (`challenge was not expected`) : les 5
+  derniers challenges sont conservés et la vérification accepte le challenge
+  correspondant à la cérémonie en cours. `.env.example` documente le nouveau
+  comportement. Vérifié au navigateur avec authentificateur virtuel
+  (Playwright CDP, instance Docker) : enregistrement 200 + clé listée, puis
+  clé de test retirée. Tests : `tests/test_webauthn.py` (+8 : résolution RP,
+  forwarded, retry, roundtrip sans config).
+
+---
+
+## [2.16.2] — 2026-09-22
+
+### Corrigé
+
+- **BUG-069 - Login 2FA bloqué sans erreur** : après user+mot de passe corrects
+  sur un compte avec 2FA, la page de login restait affichée sans erreur et le
+  challenge MFA n'apparaissait jamais. Cause : `showMfaChallenge`
+  (`frontend/js/auth.js`) montait le challenge dans `.login-box`, inexistant
+  dans `index.html` (marquage réel : `#login-screen > .login-card`) →
+  `return` silencieux. Correctif : montage dans `.login-card` (repli
+  `#login-screen`) + erreur visible (`mfa.challenge_unavailable`, FR/EN) au
+  lieu d'un retour silencieux si le point de montage manque. Vérifié de bout
+  en bout au navigateur (Playwright, instance Docker) : challenge affiché,
+  code erroné → erreur, code valide → connecté. Tests :
+  `tests/frontend/mfa-settings.test.mjs` (+2 contrôles d'ancrage DOM).
+
+---
+
+## [2.16.1] — 2026-09-22
+
+### Corrigé
+
+- **BUG-068 - Configuration : section « 🔒 Sécurité du compte » inachevée** :
+  boutons `config-btn-primary` / `config-btn-danger` définis depuis les
+  variables du thème (`frontend/style.css`) ; QR code TOTP généré en local par
+  le backend (`POST /api/auth/mfa/totp/setup` → `qr_data_url`, SVG `data:`
+  via `segno`, `backend/requirements.txt`) au lieu de l'image tierce bloquée
+  par la CSP (`img-src 'self' data: blob:`, secret TOTP exposé) ; codes de
+  récupération affichés aussi à la première activation WebAuthn ; carte
+  « Mot de passe » (changement via `POST /api/auth/change-password`) et
+  échappement des libellés de clés WebAuthn. Tests :
+  `tests/test_mfa.py::test_mfa_setup_returns_local_qr_data_url`,
+  `tests/frontend/mfa-settings.test.mjs` (nouveau, 9 contrôles).
+
+---
+
+## [2.16.0] — 2026-09-22
+
+### Modifié
+
+- **#86 - Optimisation globale des performances (phase 3)** : ferme les deux derniers
+  points de la phase 3 (recherche via inverted index, PDF lazy et caps regex déjà livrés
+  via BUG-033/BUG-040/BUG-025). Scan **différentiel** : `_scan_vault` réutilise les
+  entrées inchangées (`size` + `modified`) d'un snapshot précédent — seuls `os.walk` +
+  `stat` tournent à chaque rebuild (`build_index`, `reload_single_vault`). Extraction
+  **excalidraw différée** : le scan ne lit plus les `.excalidraw` / `.excalidraw.md`
+  (flag `excalidraw_text_pending`), `enrich_pdf_texts()` extrait leur texte après index
+  comme pour les PDF. Garde-fou `MAX_REPLACE_FILE_BYTES` (5 Mio) sur `replace_in_files`.
+  Tests : `tests/test_perf_phase3.py` (9). Voir
+  [docs/features/perf-phase3-86.md](./docs/features/perf-phase3-86.md).
+
+---
+
 ## [2.15.0] — 2026-09-22
 
 ### Ajouté

README.fr.md

@@ -4,7 +4,7 @@
 
 **Porte d'entrée web ultra-léger pour vos vaults Obsidian** — Accédez, naviguez et recherchez dans toutes vos notes Obsidian depuis n'importe quel appareil via une interface web moderne et responsive.
 
-[![Version](https://img.shields.io/badge/Version-2.15.0-blue.svg)]()
+[![Version](https://img.shields.io/badge/Version-2.16.5-blue.svg)]()
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![Docker](https://img.shields.io/badge/Docker-Ready-blue.svg)](https://www.docker.com/)
 [![Python](https://img.shields.io/badge/Python-3.11+-green.svg)](https://www.python.org/)
@@ -927,8 +927,8 @@ Ce projet est sous licence **MIT** — voir le fichier [LICENSE](LICENSE) pour l
 
 ## 📝 Changelog
 
-Consultez le [CHANGELOG.md](./CHANGELOG.md) pour l'historique complet de toutes les versions (v1.0.0 → v2.15.0).
+Consultez le [CHANGELOG.md](./CHANGELOG.md) pour l'historique complet de toutes les versions (v1.0.0 → v2.16.5).
 
 ---
 
-*Projet : ObsiGate | Version : 2.15.0 | Dernière mise à jour : Juin 2026*
+*Projet : ObsiGate | Version : 2.16.5 | Dernière mise à jour : Juin 2026*

README.md

@@ -2,7 +2,7 @@
 
 **Ultra-light web gateway for your Obsidian vaults** — Access, browse, and search all your Obsidian notes from any device via a modern, responsive web interface.
 
-[![Version](https://img.shields.io/badge/Version-2.15.0-blue.svg)]()
+[![Version](https://img.shields.io/badge/Version-2.16.5-blue.svg)]()
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![Docker](https://img.shields.io/badge/Docker-Ready-blue.svg)](https://www.docker.com/)
 [![Python](https://img.shields.io/badge/Python-3.11+-green.svg)](https://www.python.org/)
@@ -1096,8 +1096,8 @@ This project is licensed under the **MIT License** - see the [LICENSE](LICENSE)
 
 ## 📝 Changelog
 
-See [CHANGELOG.md](./CHANGELOG.md) for the complete version history (v1.0.0 → v2.15.0).
+See [CHANGELOG.md](./CHANGELOG.md) for the complete version history (v1.0.0 → v2.16.5).
 
 ---
 
-*Project: ObsiGate | Version: 2.15.0 | Last updated: May 2026*
+*Project: ObsiGate | Version: 2.16.5 | Last updated: May 2026*

VERSION

@@ -1 +1 @@
-2.15.0
+2.16.5

backend/auth/router.py

@@ -448,7 +448,9 @@ class MfaEnableRequest(BaseModel):
 async def mfa_totp_setup(current_user=Depends(require_auth)):
     """Generate a TOTP secret and QR URI for MFA setup.
 
-    Returns the secret and otpauth URI — client displays QR code.
+    Returns the secret, the otpauth URI and a ready-to-display QR code
+    (`qr_data_url`, SVG `data:` URI — no third-party service, CSP-safe).
+
     Does NOT enable MFA yet; call /mfa/totp/enable after first successful verify.
     """
     from .user_store import update_user
@@ -458,10 +460,21 @@ async def mfa_totp_setup(current_user=Depends(require_auth)):
     update_user(current_user["username"], {
         "mfa_secret_pending": secret,
     })
+    # BUG-068: the QR code is generated locally (segno, stdlib-free SVG data
+    # URI). The previous client-side https://api.qrserver.com image was blocked
+    # by the CSP (img-src 'self' data: blob:) and leaked the otpauth URI —
+    # including the TOTP secret — to a third party.
+    qr_data_url: str | None = None
+    try:
+        import segno
+        qr_data_url = segno.make(qr_uri).svg_data_uri(scale=5)
+    except Exception:
+        qr_data_url = None
     return {
         "secret": secret,
         "qr_uri": qr_uri,
         "otpauth_uri": qr_uri,
+        "qr_data_url": qr_data_url,
     }
 
 
@@ -563,18 +576,25 @@ class WebauthnRemoveRequest(BaseModel):
 
 
 @router.post("/mfa/webauthn/register/options")
-async def mfa_webauthn_register_options(current_user=Depends(require_auth)):
+async def mfa_webauthn_register_options(request: Request,
+                                        current_user=Depends(require_auth)):
     """Start WebAuthn key enrolment — returns publicKey creation options for the browser."""
-    from .webauthn_mfa import begin_registration
+    from .webauthn_mfa import begin_registration, resolve_relying_party
 
+    # BUG-070: rp_id/origins derive from the request (exact host incl. port)
+    # unless explicitly configured — the old localhost defaults rejected
+    # every real access URL ("Unexpected client data origin").
+    rp, _ = resolve_relying_party(request)
     options = begin_registration(current_user["username"],
-                                 current_user.get("display_name", ""))
+                                 current_user.get("display_name", ""),
+                                 rp_id_override=rp)
     return {"options": options}
 
 
 @router.post("/mfa/webauthn/register")
 async def mfa_webauthn_register(
     req: WebauthnRegisterRequest,
+    request: Request,
     current_user=Depends(require_auth),
 ):
     """Verify the created credential, store it, and enable MFA if not already on.
@@ -584,14 +604,17 @@ async def mfa_webauthn_register(
     from datetime import datetime, timezone
 
     from .user_store import get_user, update_user
-    from .webauthn_mfa import complete_registration
+    from .webauthn_mfa import complete_registration, resolve_relying_party
 
     user = get_user(current_user["username"])
     if user is None:
         raise HTTPException(404, "Utilisateur introuvable")
+    rp, origins = resolve_relying_party(request)
     try:
         record = complete_registration(current_user["username"], req.credential,
-                                       label=req.label)
+                                       label=req.label,
+                                       rp_id_override=rp,
+                                       origins_override=origins)
     except ValueError as e:
         raise HTTPException(400, str(e))
     except Exception as e:
@@ -670,7 +693,7 @@ async def mfa_webauthn_remove(
 
 
 @router.post("/mfa/webauthn/options")
-async def mfa_webauthn_login_options(body: dict = Body(...)):
+async def mfa_webauthn_login_options(request: Request, body: dict = Body(...)):
     """Unauthenticated: begin the login assertion for a user with registered keys.
 
     Enumeration-safe: always 200 — returns null options (caller falls back to
@@ -682,8 +705,9 @@ async def mfa_webauthn_login_options(body: dict = Body(...)):
     if not user or not user.get("mfa_enabled") or not creds:
         return {"mfa_method": "totp", "options": None}
 
-    from .webauthn_mfa import begin_authentication
+    from .webauthn_mfa import begin_authentication, resolve_relying_party
-    options = begin_authentication(username, creds)
+    rp, _ = resolve_relying_party(request)
+    options = begin_authentication(username, creds, rp_id_override=rp)
     if options is None:
         return {"mfa_method": "totp", "options": None}
     return {"mfa_method": "webauthn", "options": options}
@@ -697,7 +721,7 @@ async def mfa_webauthn_verify(
 ):
     """Unauthenticated: verify the WebAuthn assertion and issue JWT tokens."""
     from .user_store import get_user, update_user
-    from .webauthn_mfa import complete_authentication
+    from .webauthn_mfa import complete_authentication, resolve_relying_party
 
     client_ip = _enforce_mfa_rate_limit(request, body.username)
 
@@ -708,13 +732,16 @@ async def mfa_webauthn_verify(
     if not user.get("mfa_enabled"):
         raise HTTPException(400, "MFA non activé pour cet utilisateur")
 
+    rp, origins = resolve_relying_party(request)
     creds = user.get("webauthn_credentials", [])
     try:
         credential_id = body.credential.get("id", "")
         stored = next((c for c in creds if c.get("credential_id") == credential_id), None)
         if stored is None:
             raise ValueError("Credential non enregistré")
-        new_count = complete_authentication(body.username, body.credential, stored)
+        new_count = complete_authentication(body.username, body.credential, stored,
+                                            rp_id_override=rp,
+                                            origins_override=origins)
     except ValueError as e:
         _record_mfa_failure(client_ip, body.username)
         raise HTTPException(401, str(e))

backend/auth/webauthn_mfa.py

@@ -38,8 +38,16 @@ logger = logging.getLogger("obsigate.auth.webauthn")
 # Challenge lifetime: clients have 3 minutes to complete the ceremony.
 CHALLENGE_TTL_SECONDS = 180
 
-# In-memory pending challenges: key -> (challenge_bytes, expires_at)
+# How many outstanding challenges to keep per key. BUG-070: a single slot made
-_pending: dict[str, tuple[bytes, float]] = {}
+# the flow fragile — a double-click on "add key" (or any retry) overwrote the
+# pending challenge and the in-flight ceremony failed with
+# "Client data challenge was not expected challenge". The verifier now accepts
+# any recent challenge for the key.
+MAX_PENDING_PER_KEY = 5
+
+# In-memory pending challenges: key -> [(challenge_bytes, expires_at), ...]
+# (newest last)
+_pending: dict[str, list[tuple[bytes, float]]] = {}
 
 
 def rp_id() -> str:
@@ -55,24 +63,100 @@ def expected_origins() -> list[str]:
     return [o.strip() for o in raw.split(",") if o.strip()]
 
 
+def resolve_relying_party(request: Any = None) -> tuple[str, list[str]]:
+    """Resolve the WebAuthn (rp_id, expected_origins) for a ceremony.
+
+    BUG-070: the previous defaults (rp_id ``localhost``, origins
+    ``http://localhost``) rejected every real-world access URL — any port
+    (``http://localhost:2020``), ``127.0.0.1``, a LAN host or a public domain
+    failed verification with "Unexpected client data origin".
+
+    Explicit configuration still wins: when ``OBSIGATE_WEBAUTHN_RP_ID`` /
+    ``OBSIGATE_WEBAUTHN_ORIGINS`` are set they are used unchanged.  Otherwise
+    the values are derived from the incoming request (exact ``Host``, port
+    included, since the browser origin carries non-default ports).
+
+    Behind a reverse proxy the external host/proto come from
+    ``X-Forwarded-Host`` / ``X-Forwarded-Proto``, honored only when
+    ``OBSIGATE_TRUST_PROXY=true`` (same rule as ``get_client_ip``).
+    """
+    env_rp = os.environ.get("OBSIGATE_WEBAUTHN_RP_ID")
+    env_raw = os.environ.get("OBSIGATE_WEBAUTHN_ORIGINS")
+    if request is None:
+        return (env_rp or "localhost",
+                [o.strip() for o in env_raw.split(",") if o.strip()]
+                if env_raw else ["http://localhost"])
+
+    from backend.services.net import is_trusted_proxy
+
+    if is_trusted_proxy():
+        fwd_host = request.headers.get("x-forwarded-host", "")
+        host = fwd_host.split(",")[0].strip() or request.headers.get("host", "")
+        fwd_proto = request.headers.get("x-forwarded-proto", "")
+        scheme = fwd_proto.split(",")[0].strip() or request.url.scheme
+    else:
+        host = request.headers.get("host", "")
+        scheme = request.url.scheme
+    if not host:
+        url = request.url
+        host = url.netloc or url.hostname or ""
+        scheme = scheme or url.scheme or "http"
+    rp = env_rp or _hostname_only(host) or "localhost"
+    if env_raw:
+        origins = [o.strip() for o in env_raw.split(",") if o.strip()]
+    else:
+        origins = [f"{scheme or 'http'}://{host}"] if host else ["http://localhost"]
+    return rp, origins
+
+
+def _hostname_only(host: str) -> str:
+    """Strip the port (and IPv6 brackets) from a Host header value."""
+    host = host.strip()
+    if host.startswith("["):  # [::1]:8080 or [::1]
+        end = host.find("]")
+        return host[1:end] if end > 0 else host
+    if host.count(":") == 1:
+        name, _, port = host.partition(":")
+        return name if port.isdigit() else host
+    return host
+
+
 def _prune_expired() -> None:
     now = time.time()
-    for key in [k for k, (_, exp) in _pending.items() if exp < now]:
+    for key in list(_pending):
-        _pending.pop(key, None)
+        remaining = [(c, exp) for c, exp in _pending[key] if exp >= now]
+        if remaining:
+            _pending[key] = remaining
+        else:
+            _pending.pop(key, None)
 
 
 def _store_challenge(key: str) -> bytes:
     _prune_expired()
     challenge = secrets.token_bytes(32)
-    _pending[key] = (challenge, time.time() + CHALLENGE_TTL_SECONDS)
+    slot = _pending.setdefault(key, [])
+    slot.append((challenge, time.time() + CHALLENGE_TTL_SECONDS))
+    del slot[:-MAX_PENDING_PER_KEY]  # keep only the most recent ones
     return challenge
 
 
 def _take_challenge(key: str) -> bytes | None:
-    """Pop a challenge (single-use). Returns None if missing/expired."""
+    """Pop the newest challenge (single-use). Returns None if missing/expired."""
     _prune_expired()
-    entry = _pending.pop(key, None)
+    slot = _pending.get(key)
-    return entry[0] if entry else None
+    if not slot:
+        return None
+    challenge, _ = slot.pop()
+    if not slot:
+        _pending.pop(key, None)
+    return challenge
+
+
+def _take_all_challenges(key: str) -> list[bytes]:
+    """Pop every outstanding challenge for *key* (newest last)."""
+    _prune_expired()
+    slot = _pending.pop(key, None)
+    return [c for c, _ in slot] if slot else []
 
 
 def clear_pending(username: str) -> None:
@@ -83,9 +167,12 @@ def clear_pending(username: str) -> None:
 
 # ── Registration (enrol a key in settings) ─────────────────────────────
 
-def begin_registration(username: str, display_name: str) -> dict:
+def begin_registration(username: str, display_name: str,
+                       rp_id_override: str | None = None,
+                       origins_override: list[str] | None = None) -> dict:
+    _ = origins_override  # origins only matter at verification time
     options = generate_registration_options(
-        rp_id=rp_id(),
+        rp_id=rp_id_override or rp_id(),
         rp_name=rp_name(),
         user_name=username,
         user_display_name=display_name or username,
@@ -98,19 +185,44 @@ def begin_registration(username: str, display_name: str) -> dict:
     return _finalize_options(options)
 
 
-def complete_registration(username: str, credential_json: dict[str, Any],
+def _verify_with_any_challenge(key: str, verify_one: Any, empty_message: str) -> Any:
-                          label: str = "") -> dict:
+    """Run *verify_one(challenge)* against every outstanding challenge.
-    challenge = _take_challenge(f"{username}:register")
-    if challenge is None:
-        raise ValueError("Session d'enregistrement expirée — recommencez")
 
+    Returns the first success; re-raises the last error when all fail.
+    BUG-070: lets an in-flight ceremony survive a re-requested options call
+    (double-click / retry) that stored a newer challenge afterwards.
+    """
+    challenges = _take_all_challenges(key)
+    if not challenges:
+        raise ValueError(empty_message)
+    last_error: Exception | None = None
+    for challenge in challenges:
+        try:
+            return verify_one(challenge)
+        except Exception as e:  # try the next candidate challenge
+            last_error = e
+    assert last_error is not None
+    raise last_error
+
+
+def complete_registration(username: str, credential_json: dict[str, Any],
+                          label: str = "", rp_id_override: str | None = None,
+                          origins_override: list[str] | None = None) -> dict:
     credential = parse_registration_credential_json(credential_json)
-    verification = verify_registration_response(
+    effective_rp = rp_id_override or rp_id()
-        credential=credential,
+    effective_origins = origins_override or expected_origins()
-        expected_challenge=challenge,
+
-        expected_rp_id=rp_id(),
+    def _verify(challenge: bytes) -> Any:
-        expected_origin=expected_origins(),
+        return verify_registration_response(
-    )
+            credential=credential,
+            expected_challenge=challenge,
+            expected_rp_id=effective_rp,
+            expected_origin=effective_origins,
+        )
+
+    verification = _verify_with_any_challenge(
+        f"{username}:register", _verify,
+        "Session d'enregistrement expirée — recommencez")
 
     transports = credential.response.transports or []
     label = (label or str(credential_json.get("label") or "")).strip() or "Security key"
@@ -126,9 +238,12 @@ def complete_registration(username: str, credential_json: dict[str, Any],
 
 # ── Authentication (assertion at login) ────────────────────────────────
 
-def begin_authentication(username: str, credentials: list[dict]) -> dict | None:
+def begin_authentication(username: str, credentials: list[dict],
+                       rp_id_override: str | None = None,
+                       origins_override: list[str] | None = None) -> dict | None:
     if not credentials:
         return None
+    _ = origins_override  # origins only matter at verification time
     from webauthn.helpers.structs import PublicKeyCredentialDescriptor
 
     allow = [
@@ -136,7 +251,7 @@ def begin_authentication(username: str, credentials: list[dict]) -> dict | None:
         for c in credentials
     ]
     options = generate_authentication_options(
-        rp_id=rp_id(),
+        rp_id=rp_id_override or rp_id(),
         challenge=_store_challenge(f"{username}:login"),
         allow_credentials=allow,
     )
@@ -147,21 +262,27 @@ def complete_authentication(
     username: str,
     credential_json: dict[str, Any],
     stored: dict,
+    rp_id_override: str | None = None,
+    origins_override: list[str] | None = None,
 ) -> int:
-    """Verify an assertion. Returns the new sign_count. Raises ValueError on failure."""
+    """Verify an assertion. Returns the new sign_count. Raises on failure."""
-    challenge = _take_challenge(f"{username}:login")
-    if challenge is None:
-        raise ValueError("Session expirée — rechargez la page")
-
     credential = parse_authentication_credential_json(credential_json)
-    verification = verify_authentication_response(
+    effective_rp = rp_id_override or rp_id()
-        credential=credential,
+    effective_origins = origins_override or expected_origins()
-        expected_challenge=challenge,
+
-        expected_rp_id=rp_id(),
+    def _verify(challenge: bytes) -> Any:
-        expected_origin=expected_origins(),
+        return verify_authentication_response(
-        credential_public_key=base64url_to_bytes(stored["public_key"]),
+            credential=credential,
-        credential_current_sign_count=int(stored.get("sign_count", 0)),
+            expected_challenge=challenge,
-    )
+            expected_rp_id=effective_rp,
+            expected_origin=effective_origins,
+            credential_public_key=base64url_to_bytes(stored["public_key"]),
+            credential_current_sign_count=int(stored.get("sign_count", 0)),
+        )
+
+    verification = _verify_with_any_challenge(
+        f"{username}:login", _verify,
+        "Session expirée — rechargez la page")
     return int(verification.new_sign_count)
 
 

backend/indexer.py

@@ -397,31 +397,52 @@ def parse_markdown_file(raw: str) -> frontmatter.Post:
         return frontmatter.Post(content)
 
 
-def _scan_vault(vault_name: str, vault_path: str, vault_cfg: dict[str, Any] | None = None) -> dict[str, Any]:
+def _scan_vault(
+    vault_name: str,
+    vault_path: str,
+    vault_cfg: dict[str, Any] | None = None,
+    previous_files: dict[str, dict[str, Any]] | None = None,
+) -> dict[str, Any]:
     """Synchronously scan a single vault directory and build file index.
 
     Walks the vault tree, reads supported files, extracts metadata
     (tags, title, content preview) and stores a capped content snapshot
     for in-memory full-text search.
-    
+
     All files and directories are indexed, including hidden files (starting with '.').
 
+    Differential scan (#86): when ``previous_files`` maps a relative path to
+    its previous ``file_info`` dict, entries whose ``size`` and ``modified``
+    timestamp are unchanged are reused verbatim (no disk read, no re-parse).
+    Only the cheap ``os.walk`` + ``stat`` runs on every pass; heavy content
+    extraction (PDF metadata excepted — always cheap) is skipped for
+    unchanged files. This replaces the full ``rglob`` re-read on rebuilds.
+
+    Excalidraw diagrams (#86, like PDFs since BUG-040) are deferred: the scan
+    only records the title and sets ``excalidraw_text_pending``; the expensive
+    JSON/lz-string text extraction runs in ``enrich_pdf_texts()`` after the
+    index is queryable.
+
     Args:
         vault_name: Display name of the vault.
         vault_path: Absolute filesystem path to the vault root.
         vault_cfg: Optional vault configuration dict (unused for indexing, kept for compatibility).
+        previous_files: Optional ``{relative_path: file_info}`` snapshot from a
+            previous scan used for differential reuse.
 
     Returns:
-        Dict with keys ``files`` (list), ``tags`` (counter dict), ``path`` (str), ``paths`` (list).
+        Dict with keys ``files`` (list), ``tags`` (counter dict), ``path`` (str),
+        ``paths`` (list) and ``reused`` (int, differential hits).
     """
     vault_root = Path(vault_path)
     files: list[dict[str, Any]] = []
     tag_counts: dict[str, int] = {}
     paths: list[dict[str, str]] = []
+    reused = 0
 
     if not vault_root.exists():
         logger.warning(f"Vault path does not exist: {vault_path}")
-        return {"files": [], "tags": {}, "path": vault_path, "paths": []}
+        return {"files": [], "tags": {}, "path": vault_path, "paths": [], "reused": 0}
 
     root_resolved = vault_root.resolve(strict=False)
 
@@ -479,9 +500,37 @@ def _scan_vault(vault_name: str, vault_path: str, vault_cfg: dict[str, Any] | No
                 stat = fpath.stat()
                 modified = datetime.fromtimestamp(stat.st_mtime, tz=timezone.utc).isoformat()
 
+                # #86 differential scan: reuse the previous entry when neither
+                # size nor mtime changed — skips the disk read + parse below.
+                if previous_files:
+                    prev = previous_files.get(rel_path_str)
+                    if (
+                        prev is not None
+                        and prev.get("size") == stat.st_size
+                        and prev.get("modified") == modified
+                    ):
+                        file_info = {**prev, "tags": list(prev.get("tags", []))}
+                        files.append(file_info)
+                        for tag in file_info.get("tags", []):
+                            tag_counts[tag] = tag_counts.get(tag, 0) + 1
+                        reused += 1
+                        # The global backlink index is rebuilt on every scan,
+                        # so re-register this file's wikilinks from its
+                        # (cached) content instead of re-reading the disk.
+                        if file_info.get("extension") == ".md" and file_info.get("content"):
+                            try:
+                                _extract_wikilinks_for_backlinks(
+                                    vault_name, file_info["path"],
+                                    file_info.get("title", ""), file_info["content"],
+                                )
+                            except Exception:
+                                pass
+                        continue
+
                 # PDF handling — special path (binary, uses pdf_reader)
                 tags: list[str] = []
                 pdf_text_pending = False
+                excalidraw_text_pending = False
                 if ext == ".pdf":
                     from backend.pdf_reader import extract_pdf_metadata
                     # BUG-040: only the (cheap) metadata is read during the
@@ -494,10 +543,13 @@ def _scan_vault(vault_name: str, vault_path: str, vault_cfg: dict[str, Any] | No
                     content_preview = ""
                     pdf_text_pending = True
                 elif ext == ".excalidraw" or fpath.name.lower().endswith(".excalidraw.md"):
-                    raw = fpath.read_text(encoding="utf-8", errors="replace")
+                    # #86: defer the expensive JSON/lz-string text extraction
-                    raw = extract_excalidraw_indexable(raw)
+                    # (read + decompress + element walk) to ``enrich_pdf_texts``
+                    # so the scan stays cheap; title comes from the filename.
+                    raw = ""
                     title = fpath.stem.replace(".excalidraw", "").replace("-", " ").replace("_", " ")
-                    content_preview = raw[:200].strip()
+                    content_preview = ""
+                    excalidraw_text_pending = True
                 else:
                     raw = fpath.read_text(encoding="utf-8", errors="replace")
                     title = fpath.stem.replace("-", " ").replace("_", " ")
@@ -528,6 +580,8 @@ def _scan_vault(vault_name: str, vault_path: str, vault_cfg: dict[str, Any] | No
                 }
                 if pdf_text_pending:
                     file_info["pdf_text_pending"] = True
+                if excalidraw_text_pending:
+                    file_info["excalidraw_text_pending"] = True
                 files.append(file_info)
 
                 for tag in tags:
@@ -540,28 +594,49 @@ def _scan_vault(vault_name: str, vault_path: str, vault_cfg: dict[str, Any] | No
                 logger.error(f"Error indexing {fpath}: {e}")
                 continue
 
-    logger.info(f"Vault '{vault_name}': indexed {len(files)} files, {len(paths)} paths, {len(tag_counts)} unique tags")
+    logger.info(
-    return {"files": files, "tags": tag_counts, "path": vault_path, "paths": paths, "config": {}}
+        f"Vault '{vault_name}': indexed {len(files)} files "
+        f"({reused} reused), {len(paths)} paths, {len(tag_counts)} unique tags"
+    )
+    return {"files": files, "tags": tag_counts, "path": vault_path, "paths": paths, "config": {}, "reused": reused}
+
+
+def _read_excalidraw_indexable_text(file_path: Path) -> str:
+    """Read an excalidraw file and return its indexable text (blocking helper).
+
+    Runs inside an executor via ``enrich_pdf_texts`` so the lz-string
+    decompression of large diagrams never blocks the event loop.
+    """
+    try:
+        raw = file_path.read_text(encoding="utf-8", errors="replace")
+    except OSError:
+        return ""
+    try:
+        return extract_excalidraw_indexable(raw)
+    except Exception:  # pragma: no cover - defensive
+        return ""
 
 
 async def enrich_pdf_texts(vault_name: str | None = None) -> int:
-    """Extract text from PDFs whose extraction was deferred during the scan (BUG-040).
+    """Extract text deferred during the scan: PDFs (BUG-040) + excalidraw (#86).
 
-    ``_scan_vault`` only reads PDF metadata so a vault with many or large PDFs
+    ``_scan_vault`` only reads PDF metadata and excalidraw filenames so a vault
-    starts serving immediately. This coroutine runs *after* the index (and the
+    with many or large heavy files starts serving immediately. This coroutine
-    inverted index) is ready, extracts the missing text off the event loop and
+    runs *after* the index (and the inverted index) is ready, extracts the
-    updates the in-memory entry plus the incremental index hooks.
+    missing text off the event loop and updates the in-memory entry plus the
+    incremental index hooks.
 
     Args:
         vault_name: Restrict the pass to a single vault; ``None`` covers every
             indexed vault.
 
     Returns:
-        Number of deferred PDFs whose text extraction was attempted.
+        Number of deferred files (PDF + excalidraw) whose text extraction was
+        attempted.
     """
     from backend.pdf_reader import extract_pdf_text
 
-    pending: list[tuple[str, dict[str, Any], Path]] = []
+    pending: list[tuple[str, dict[str, Any], Path, str]] = []
     with _index_lock:
         for name, vault_data in index.items():
             if vault_name is not None and name != vault_name:
@@ -569,32 +644,38 @@ async def enrich_pdf_texts(vault_name: str | None = None) -> int:
             vault_root = Path(vault_data.get("path", ""))
             for file_info in vault_data.get("files", []):
                 if file_info.get("pdf_text_pending"):
-                    pending.append((name, file_info, vault_root / file_info["path"]))
+                    pending.append((name, file_info, vault_root / file_info["path"], "pdf"))
+                elif file_info.get("excalidraw_text_pending"):
+                    pending.append((name, file_info, vault_root / file_info["path"], "excalidraw"))
 
     if not pending:
         return 0
 
     loop = asyncio.get_running_loop()
     enriched = 0
-    for name, file_info, file_path in pending:
+    for name, file_info, file_path, kind in pending:
         try:
-            raw = await loop.run_in_executor(None, extract_pdf_text, file_path, 100000)
+            if kind == "pdf":
+                raw = await loop.run_in_executor(None, extract_pdf_text, file_path, 100000)
+            else:
+                raw = await loop.run_in_executor(None, _read_excalidraw_indexable_text, file_path)
         except Exception as exc:  # pragma: no cover - defensive
-            logger.warning("PDF enrichment failed for %s: %s", file_path, exc)
+            logger.warning("Deferred text enrichment failed for %s: %s", file_path, exc)
             raw = ""
         file_info["content"] = raw[:SEARCH_CONTENT_LIMIT]
         file_info["content_preview"] = raw[:200].strip()
         file_info.pop("pdf_text_pending", None)
+        file_info.pop("excalidraw_text_pending", None)
         enriched += 1
         if _on_index_change:
             try:
                 _on_index_change("add", name, file_info["path"], file_info)
             except Exception as exc:  # pragma: no cover - defensive
                 logger.warning(
-                    "Index hook failed after PDF enrichment for %s: %s", file_path, exc
+                    "Index hook failed after deferred enrichment for %s: %s", file_path, exc
                 )
 
-    logger.info("PDF enrichment: extracted text for %d deferred PDF(s)", enriched)
+    logger.info("Deferred text enrichment: extracted text for %d file(s)", enriched)
     return enriched
 
 
@@ -603,16 +684,24 @@ async def build_index(progress_callback=None) -> None:
 
     Runs vault scans concurrently, inserting them incrementally into the global index.
     Notifies progress via the provided callback.
+
+    #86 differential rebuild: the previous per-vault ``{path: file_info}``
+    snapshots are captured before the clear and handed to ``_scan_vault`` so
+    unchanged files (same size + mtime) are reused without disk re-reads.
     """
     global index, vault_config
     vault_config.clear()
     vault_config.update(load_vault_config())
-    
+
     # Note: vault_settings are now only used for UI display preferences (hideHiddenFiles)
     # Indexing always includes all files regardless of settings
-    
+
     global _index_generation
     with _index_lock:
+        previous_snapshot: dict[str, dict[str, dict[str, Any]]] = {
+            name: {f["path"]: f for f in vdata.get("files", [])}
+            for name, vdata in index.items()
+        }
         index.clear()
         _file_lookup.clear()
         path_index.clear()
@@ -631,8 +720,13 @@ async def build_index(progress_callback=None) -> None:
     loop = asyncio.get_event_loop()
 
     async def _process_vault(name: str, config: dict[str, Any]):
+        import functools
+
         vault_path = config["path"]
-        vault_data = await loop.run_in_executor(None, _scan_vault, name, vault_path, config)
+        scan = functools.partial(
+            _scan_vault, name, vault_path, config, previous_snapshot.get(name)
+        )
+        vault_data = await loop.run_in_executor(None, scan)
         vault_data["config"] = config
 
         # Build lookup entries for the new vault
@@ -695,7 +789,7 @@ async def reload_index() -> dict[str, Any]:
         Dict mapping vault names to their file/tag counts.
     """
     await build_index()
-    # BUG-040: complete the deferred PDF extraction for the rebuilt index.
+    # BUG-040/#86: complete the deferred PDF + excalidraw extraction.
     await enrich_pdf_texts()
     stats = {}
     for name, data in index.items():
@@ -724,14 +818,22 @@ async def reload_single_vault(vault_name: str) -> dict[str, Any]:
         raise ValueError(f"Vault '{vault_name}' not found in configuration")
     
     config = vault_config[vault_name]
-    
+
+    # #86 differential rescan: snapshot this vault's entries before removal so
+    # unchanged files are reused without disk re-reads.
+    with _index_lock:
+        _previous = {f["path"]: f for f in index.get(vault_name, {}).get("files", [])}
+
     # Remove old vault data from index structures
     await remove_vault_from_index(vault_name)
-    
+
     # Re-add the vault with updated configuration
+    import functools
+
     vault_path = config["path"]
     loop = asyncio.get_event_loop()
-    vault_data = await loop.run_in_executor(None, _scan_vault, vault_name, vault_path, config)
+    scan = functools.partial(_scan_vault, vault_name, vault_path, config, _previous)
+    vault_data = await loop.run_in_executor(None, scan)
     vault_data["config"] = config
     
     # Build lookup entries for the vault
@@ -761,7 +863,7 @@ async def reload_single_vault(vault_name: str) -> dict[str, Any]:
     from backend.attachment_indexer import build_attachment_index
     await build_attachment_index({vault_name: config})
 
-    # BUG-040: complete the deferred PDF extraction for this vault.
+    # BUG-040/#86: complete the deferred PDF + excalidraw extraction.
     await enrich_pdf_texts(vault_name)
 
     stats = {"file_count": len(vault_data["files"]), "tag_count": len(vault_data["tags"])}

backend/requirements.txt

@@ -15,6 +15,7 @@ weasyprint>=60.0
 httpx>=0.27.0
 pypdf>=4.0
 pyotp>=2.10.0
+segno>=1.5.0
 webauthn==2.6.0
 psutil>=5.9
 pywebpush>=2.3.0

backend/services/mutations.py

@@ -26,6 +26,11 @@ from backend.services.vaults import get_vault_root
 
 logger = logging.getLogger("obsigate.services.mutations")
 
+# #86: per-file size cap for find/replace passes (CPU guard — complements the
+# BUG-025 regex caps). Files larger than this are skipped instead of being
+# read fully into memory and scanned with a user-supplied pattern.
+MAX_REPLACE_FILE_BYTES = 5_000_000
+
 # Skeleton injected into empty ``.excalidraw`` files (mirrors the route logic).
 _EXCALIDRAW_SKELETON = (
     '{"type":"excalidraw","version":2,"elements":[],'
@@ -509,6 +514,16 @@ def replace_in_files(
             continue
         if not file_path.exists() or not file_path.is_file():
             continue
+        # #86 CPU guard: skip files too large to scan safely in one pass.
+        try:
+            if file_path.stat().st_size > MAX_REPLACE_FILE_BYTES:
+                logger.warning(
+                    "replace_in_files: skipping oversized file %s/%s (%d bytes)",
+                    result_vault, result["path"], file_path.stat().st_size,
+                )
+                continue
+        except OSError:
+            continue
         try:
             original = file_path.read_text(encoding="utf-8", errors="replace")
         except OSError:

desktop/Cargo.lock

@@ -2626,7 +2626,7 @@ dependencies = [
 
 [[package]]
 name = "obsigate-desktop"
-version = "2.15.0"
+version = "2.16.5"
 dependencies = [
  "chrono",
  "env_logger",

desktop/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "obsigate-desktop"
-version = "2.15.0"
+version = "2.16.5"
 description = "ObsiGate Desktop — Porte d'entrée native pour vos vaults Obsidian"
 authors = ["Bruno Charest"]
 edition = "2021"

desktop/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://raw.githubusercontent.com/nicedoc/obsigate/main/desktop/tauri.conf.schema.json",
   "productName": "ObsiGate",
-  "version": "2.15.0",
+  "version": "2.16.5",
   "identifier": "com.obsigate.desktop",
   "build": {
     "frontendDist": "../frontend",

docs/ISSUES_TODOLIST.md

@@ -176,6 +176,10 @@ Avant de corriger quoi que ce soit, un agent IA doit :
 | *BUG-065* | [🟡 IMPORTANT] Éditeur Excalidraw : l'auto-save recharge la page en pleine édition | 🟢 corrigé | P1 | 📱 frontend | IA | `frontend/js/excalidraw-viewer.js`, `frontend/js/utils.js`, `frontend/excalidraw-editor.html`, `tests/frontend/excalidraw-viewer.test.mjs` | Ouvrir un `.excalidraw` puis modifier un élément : au bout de 2 s la vue se recharge | Chaque modification déclenchait un `PUT save` 2 s plus tard → SSE `index_updated` → `reloadExternalWrite` → `openFile` → **recréation de l'iframe** (refresh visible). Auto-save supprimée : sauvegarde explicite (bouton 💾 / Ctrl+S). `reloadExternalWrite` ignore le fichier si un iframe Excalidraw est ouvert (`iframe[data-excalidraw-vault/path]`). Le badge « Modified » ne réagit plus aux changements d'`appState` (resize/zoom) mais à la signature des éléments. | Vérifié Playwright : plus de refresh, badge stable après bascule plein écran. Test statique (absence de `requestSave`/`saveTimer`). |
 | *BUG-066* | [🔵 MINEUR] Configuration : icônes manquantes dans la table des matières (« Fichiers cachés », « Partages publics ») | 🟢 corrigé | P3 | 📱 frontend | IA | `frontend/locales/{fr,en}.json` | Ouvrir Configuration → observer le sommaire : les entrées « Fichiers cachés » et « Partages publics » n'ont pas d'icône | `config.section_hidden` → « 🗂️ Fichiers cachés » / « 🗂️ Hidden files », `config.section_shares` → « 📤 Partages publics » (EN avait déjà l'icône). Test : `tests/frontend/unit.test.mjs` (+1 : toutes les entrées du sommaire portent une icône FR/EN) | Les libellés du sommaire utilisent des clés i18n distinctes des titres de section (`auto.f8ba6127`, `config.section_partages-publics`) qui, elles, avaient l'icône |
 | *BUG-067* | [🔵 MINEUR] Guide d'utilisation : l'entrée « 📱 Mobile » du sommaire ne fait rien (section absente) | 🟢 corrigé | P3 | 📱 frontend | IA | `frontend/index.html` | Ouvrir le Guide → cliquer « 📱 Mobile » dans le sommaire : rien ne se passe | L'ancre `#help-mobile-editor` était présente dans la TOC mais aucune section `id="help-mobile-editor"` n'existait (l'édition mobile n'était qu'un h3 de `help-edition`). Fix #105 : section dédiée créée avec ancre + entrée de nav cohérente. | Vérifié par test statique `tests/test_guide.py::test_nav_anchors_resolve` |
+| *BUG-068* | Configuration — section « 🔒 Sécurité du compte » inachevée : boutons hors thème, QR code invisible, fiabilité des fonctions à valider | 🟢 corrigé | P1 | 📱 frontend + ⚙️ backend | IA | `frontend/js/auth.js`, `frontend/style.css`, `backend/auth/router.py` | Configuration → 🔒 Sécurité du compte | `frontend/style.css` (+`config-btn-primary`/`danger` thème), `backend/auth/router.py` (`qr_data_url` segno local), `frontend/js/auth.js` (QR local + fallback, recovery WebAuthn, carte mot de passe, escapeHtml labels), locales FR/EN, `backend/requirements.txt` (+segno) ; tests `tests/test_mfa.py` (+1) + `tests/frontend/mfa-settings.test.mjs` (nouveau, 9) | pytest 1241 passed / 6 skipped, ruff 0, mypy 0, frontend unit + validate-imports verts |
+| *BUG-069* | Login 2FA bloqué sans erreur : après user+pwd corrects, la page de login reste affichée et le challenge MFA n'apparaît jamais | 🟢 corrigé | P0 | 📱 frontend | IA | `frontend/js/auth.js`, `frontend/index.html` | Activer 2FA → logout → login (bon user+pwd) | `frontend/js/auth.js` (`showMfaChallenge` → `.login-card` + erreur `mfa.challenge_unavailable` si montage impossible), locales FR/EN ; tests `tests/frontend/mfa-settings.test.mjs` (+2) | Reproduit au navigateur avant correctif (challenge jamais affiché), vérifié après : challenge affiché, code erroné → erreur, code valide (200) → app ; frontend mfa-settings 11/11, unit + validate-imports verts |
+| *BUG-070* | Activation clé physique WebAuthn impossible : « Validation du credential WebAuthn échouée » à chaque tentative | 🟢 corrigé | P0 | ⚙️ backend | IA | `backend/auth/webauthn_mfa.py`, `backend/auth/router.py` | Config → Sécurité → Ajouter une clé → cérémonie navigateur → 400 | `resolve_relying_party()` (rp_id/origines dérivés de la requête, config explicite prioritaire, forwarded si TRUST_PROXY) sur les 4 endpoints ; challenges multiples (5 derniers) acceptés ; `.env.example` ; tests `tests/test_webauthn.py` (+8) | Logs : origin `http://localhost:2020` rejetée + challenge mismatch au retry. Vérifié navigateur (authentificateur virtuel CDP) : register 200 + clé listée, clé de test retirée (admin de nouveau TOTP seul) ; pytest 1249 passed, ruff/mypy 0 |
+| *BUG-071* | Configuration « Configurations » inutilisable en mode mobile : sommaire masqué sans bouton d'accès, navigation par ancre sans JS, grilles 2 colonnes et rangées d'ajout qui débordent (≤768px) | 🟢 corrigé | P1 | 📱 frontend | IA | `frontend/index.html`, `frontend/js/config.js`, `frontend/js/i18n.js`, `frontend/style.css`, `frontend/locales/{fr,en}.json` | Mobile (≤768px) : ouvrir Configurations → aucun sommaire ni moyen d'atteindre une section ; champs « Clés IA » / jetons / webhooks débordent | `index.html` (+`#config-hamburger` `.help-hamburger`, `config.toc_toggle` FR/EN) ; `config.js` (toggle, scroll doux + actif + repli auto mobile, reset à l'ouverture) ; `i18n.js` (`data-i18n-attr` multi-paires `;`) ; `style.css` (bloc mobile `#config-modal` : sommaire haut 46vh, grilles 1fr, add-rows wrap + `!important`, items wrap, 44px) ; tests `tests/frontend/config-mobile.test.mjs` (nouveau, 11) + CI ; E2E `tests/e2e/config-mobile.spec.js` (nouveau, 3/3 projet chromium-mobile, ignoré en desktop) | pytest 1249 passed / 6 skipped, ruff 0, mypy 0, validate-imports 39 modules, unit 10/10, JSDOM ai 93/93 + sidebar 6/6 + mobile 35/35 + ai-keys 7/7 |
 |  | | | | | | | | | | |
 
 ### TODOs techniques (améliorations / nouvelles tâches)
@@ -249,6 +253,11 @@ Avant de corriger quoi que ce soit, un agent IA doit :
 | 2026-09-18 | BUG-066 | Correction | `frontend/locales/fr.json`, `frontend/locales/en.json`, `tests/frontend/unit.test.mjs`, `CHANGELOG.md`, `docs/ISSUES_TODOLIST.md` | **BUG-066** : la table des matières de la page de configuration n'affichait aucune icône pour « Fichiers cachés » et « Partages publics ». Les libellés du sommaire proviennent de clés i18n (`config.section_hidden`, `config.section_shares`) distinctes des titres de section qui, eux, portaient déjà l'icône. Alignement : 🗂️ / 📤 en FR **et** EN. Test de non-régression : `unit.test.mjs` vérifie que **toutes** les entrées `.help-nav-link` du sommaire portent une icône dans les deux langues (17/17). Vérifié : `unit.test.mjs` 10/10, `validate-imports` 38 modules. | 🟢 corrigé (en attente vérif utilisateur) |
 | 2026-09-18 | #105, BUG-067 | Documentation + correction | `frontend/index.html`, `frontend/js/config.js`, `frontend/style.css`, `frontend/locales/{fr,en}.json`, `backend/guide_export.py`, `backend/main.py`, `tests/test_guide.py`, `docs/features/guide-coverage-105.md`, `CHANGELOG.md`, `docs/ROADMAP.md`, `docs/ISSUES_TODOLIST.md` | **#105** : audit complet de couverture du Guide d'utilisation — 8 nouvelles sections (Architecture + diagramme Mermaid, API & intégrations, Diagrammes Mermaid & Excalidraw, Hors-ligne & synchronisation, Collaboration temps réel, Application desktop, Bibliothèque & signets, Multilingue) et compléments (recherche sémantique, MFA/WebAuthn, notifications push, exports HTML/ePub/ZIP, PDF, vue multi-panneaux, admin). Téléchargement du guide en Markdown et PDF (`GET /api/guide/download?format=md|pdf`, FR/EN, rendu par le moteur d'export existant). Guide plus large en desktop. **BUG-067** : ancre morte `#help-mobile-editor` → section dédiée créée. | 🟢 corrigé (en attente vérif utilisateur)
 | 2026-09-18 | #105 (ajustements) | Amélioration | `frontend/index.html`, `frontend/js/config.js`, `frontend/sw.js`, `frontend/locales/{fr,en}.json`, `backend/guide_export.py`, `backend/pdf_export.py`, `Dockerfile`, `scripts/build_guide_diagrams.py`, `scripts/render_guide_diagram.mjs`, `scripts/guide_content.py`, `backend/assets/guide_diagrams/df7366a40db6a5a2.png`, `tests/test_guide.py`, `docs/features/guide-coverage-105.md`, `CHANGELOG.md` | **#105 (retour utilisateur)** : 1) boutons de téléchargement du guide passés en icônes seules (tooltips i18n conservés) ; 2) le diagramme Mermaid de la section Architecture est désormais rendu en **vraie image** dans le PDF (pipeline de pré-rendu PNG Chromium+mermaid v11, PNG commité sous `backend/assets/guide_diagrams/<sha1>.png`, résolu par `diagram_png_for()` ; le Markdown garde le fenced mermaid) ; 3) emoji du PDF rendus **en couleur** au lieu de rectangles : `fonts-noto-color-emoji` ajouté au Dockerfile + `"Noto Color Emoji"` en fin de pile de polices PDF. Vérifié : pytest 1218 (test_guide ×13), ruff/mypy 0, validate-imports 38, unit 10/10 ; PDF live conteneur 2020 : 24 pages, 0 glyphes tofu, diagramme 3568x1174 embarqué. | 🟢 livré
+| 2026-09-22 | BUG-068 | Correction | `backend/auth/router.py`, `backend/requirements.txt`, `frontend/js/auth.js`, `frontend/style.css`, `frontend/locales/{fr,en}.json`, `tests/test_mfa.py`, `tests/frontend/mfa-settings.test.mjs` (nouveau), `CHANGELOG.md`, `docs/ISSUES_TODOLIST.md` | **BUG-068** : section « 🔒 Sécurité du compte » finalisée. (1) Boutons hors thème : `config-btn-primary`/`config-btn-danger` n'existaient pas en CSS → définis depuis les variables du thème (+ états disabled). (2) QR invisible : l'image tierce était bloquée par la CSP (`img-src 'self' data: blob:`) et exposait le secret TOTP → QR SVG `data:` généré en local par le backend (`qr_data_url`, segno) avec repli saisie manuelle. (3) Codes de récupération perdus à la 1re activation WebAuthn → `_showRecoveryCodes(codes, targetId)` avec repli `webauthn-flow-area`. (4) Carte « Mot de passe » ajoutée (endpoint `change-password` existant, jusque-là sans UI) + échappement des libellés de clés WebAuthn. Vérifié : pytest 1241 passed / 6 skipped, ruff 0, mypy 0 (78 fichiers), `mfa-settings.test.mjs` 9/9, unit 10/10, validate-imports 39 modules. | 🟢 corrigé (en attente vérif utilisateur) |
+| 2026-09-23 | BUG-069 | Correction | `frontend/js/auth.js`, `frontend/locales/{fr,en}.json`, `tests/frontend/mfa-settings.test.mjs`, `CHANGELOG.md`, `docs/ISSUES_TODOLIST.md` | **BUG-069** : login 2FA bloqué sans erreur — après user+pwd corrects, `showMfaChallenge` cherchait `.login-box` (inexistant dans `index.html`, marquage réel `#login-screen > .login-card`) et faisait un `return` silencieux : page de login figée, aucune erreur. Correctif : montage dans `.login-card` (repli `#login-screen`) + erreur visible `mfa.challenge_unavailable` (FR/EN) si le point de montage manque. **Reproduit au navigateur** (Playwright, instance Docker `obsigate-test`, compte jetable avec TOTP) : avant → challenge jamais affiché ; après → challenge affiché, code erroné → erreur, code valide (verify 200) → app. Tests : `mfa-settings.test.mjs` 11/11 (+2 ancrage DOM), unit 10/10, validate-imports 39 modules. | 🟢 corrigé (en attente vérif utilisateur) |
+| 2026-09-23 | BUG-070 | Correction | `backend/auth/webauthn_mfa.py`, `backend/auth/router.py`, `.env.example`, `tests/test_webauthn.py`, `CHANGELOG.md`, `docs/ISSUES_TODOLIST.md` | **BUG-070** : activation WebAuthn rejetée en 400. (1) Défauts `localhost` sans port → `resolve_relying_party()` dérive rp_id/origines de la requête (config explicite prioritaire, forwarded sous TRUST_PROXY), appliqué aux endpoints register + login. (2) Challenge single-use → 5 derniers conservés, vérification contre le challenge de la cérémonie en cours. **Vérifié au navigateur** (authentificateur virtuel CDP, instance Docker) : register 200, clé listée, clé de test retirée. Tests : `test_webauthn.py` 19/19 (+8), suite complète 1249 passed / 6 skipped, ruff/mypy 0. | 🟢 corrigé (en attente vérif utilisateur) |
+| 2026-09-23 | BUG-071 | Correction | `frontend/index.html`, `frontend/js/config.js`, `frontend/js/i18n.js`, `frontend/style.css`, `frontend/locales/{fr,en}.json`, `tests/frontend/config-mobile.test.mjs` (nouveau), `.gitea/workflows/ci.yml`, `CHANGELOG.md`, `docs/ISSUES_TODOLIST.md` | **BUG-071** : page « Configurations » inutilisable en mobile. (1) `#config-nav` masquée sous 768px sans toggle → hamburger `#config-hamburger` ajouté à l'en-tête (`.help-hamburger`, libellé `config.toc_toggle` FR/EN). (2) Ancres brutes sans JS → interception en `config.js` (scroll doux, lien actif, repli auto mobile, reset à l'ouverture). (3) Débordements 360px → bloc CSS mobile `#config-modal` (sommaire haut 46vh, grilles 1fr, add-rows wrap + largeurs inline neutralisées, items wrap, cibles 44px). `data-i18n-attr` multi-paires (`;`). Vérifié : `config-mobile.test.mjs` 11/11 (nouveau, au CI), pytest 1249 passed / 6 skipped, ruff/mypy 0, validate-imports 39 modules, unit 10/10, JSDOM ai 93/93 + ai-sidebar 6/6 + sidebar-filters 8/8 + mobile-editor 35/35 + config-ai-keys 7/7. | 🟢 corrigé (en attente vérif utilisateur) |
+| 2026-09-23 | BUG-071 (complément E2E) | Test | `tests/e2e/config-mobile.spec.js` (nouveau), `CHANGELOG.md`, `docs/ISSUES_TODOLIST.md` | **BUG-071 (complément E2E)** : spec Playwright mobile (convention `mobile-editor.spec.js` : `test.skip` hors viewport ≤768px, donc inactive sur le projet `chromium-desktop` du CI). Vérifié en local sur l'instance de test (port 2029, auth désactivée) : hamburger → sommaire, sélection → scroll + actif + repli, 0 débordement horizontal à 393px (3/3 `chromium-mobile`, 3 ignorés en desktop) ; suite `mobile-editor.spec.js` intacte (3/3). | 🟢 corrigé (en attente vérif utilisateur) |
 
 ---
 

docs/ROADMAP.md

@@ -1,6 +1,6 @@
 # ObsiGate — Roadmap
 
-> **Version :** 2.15.0 | **Dernière mise à jour :** 2026-09-22
+> **Version :** 2.16.5 | **Dernière mise à jour :** 2026-09-22
 > **Ce fichier ne contient que le travail à venir** (🔵 En cours + ⚪ Backlog) et un index compact
 > vers les fonctionnalités livrées.
 > - **Méthode de livraison à appliquer pour toute tâche : [DELIVERY_WORKFLOW.md](./DELIVERY_WORKFLOW.md)**
@@ -107,15 +107,6 @@
   - [ ] Persister index, JTI révoqués et compteurs de rate-limit (SQLite/Redis)
   - [ ] Verrous asyncio autour de l'index global et des stores JSON ; service de partage public (expiration, révocation, quotas)
 
-### 86. Optimisation globale des performances (phase 3)
-
-- **Effort :** 4-6 jours | **Impact :** 🟡 | **Zone :** backend (`search.py`, `indexer.py`, `mutations.py`)
-- **Description :** brancher l'inverted index (déjà construit) sur la recherche simple et le tool IA `search_fulltext`, indexation incrémentale, extraction PDF lazy.
-- **Sous-tâches :**
-  - [ ] Recherche simple + tool IA via l'inverted index (suppression du balayage O(N) en mémoire)
-  - [ ] Indexation incrémentale + scan différentiel au démarrage (remplace le `rglob` complet)
-  - [ ] Extraction PDF/excalidraw différée (hors scan) ; caps CPU sur les opérations regex
-
 ### 87. Amélioration continue — tests, CI/CD, revues de sécurité (phase 4)
 
 - **Effort :** 3-5 jours | **Impact :** 🟡 | **Zone :** `.gitea/workflows/`, `tests/`
@@ -190,6 +181,7 @@
 | 105 | Guide d'utilisation — audit de couverture complet, téléchargement Markdown/PDF, guide desktop élargi, section Architecture (Mermaid) + BUG-067 | 2.13.0 | [features/guide-coverage-105.md](./features/guide-coverage-105.md) |
 | 106 | Assistant IA — Actions instantanées contextuelles, catalogue « Toutes les actions » & frontmatter complet | 2.14.0 | [features/ai-quick-actions.md](./features/ai-quick-actions.md) |
 | 107 | Configuration — Gestion des clés API & MCP : création/révocation de jetons longue durée (1 j, 1 mois, 6 mois, 1 an, sans fin), une seule clé pour l'API REST et le serveur MCP, « dernière utilisation », store `data/api_tokens.json` sans secret persisté | 2.15.0 | [features/api-mcp-tokens-107.md](./features/api-mcp-tokens-107.md) |
+| 86 | Optimisation globale des performances (phase 3) — scan différentiel, excalidraw différé, garde-fou `replace` (inverted index / PDF lazy / caps regex déjà livrés via BUG-033/040/025) | 2.16.0 | [features/perf-phase3-86.md](./features/perf-phase3-86.md) |
 
 ---
 
@@ -197,11 +189,11 @@
 
 | Priorité | Items | Effort total estimé |
 |---|---|---|
-| ✅ Complété | #1 → #59, #61–72, #74–76, #78–84, #88–93, #94–100, #102–107, #92 | ~116 jours réalisés |
+| ✅ Complété | #1 → #59, #61–72, #74–76, #78–84, #86, #88–93, #94–100, #102–107, #92 | ~120 jours réalisés |
 | 🔵 P2 restant | #77 Desktop : signature de code (non retenue), 6 tests E2E **manuels** ([protocole](./DESKTOP_E2E_CHECKLIST.md)) | ~0,5-1 jour |
 | ⚪ P4 restant | #73 Sync (6-8j) | 6-8 jours |
-| ⚪ P0/P1 restant | #85-87 Refonte architecturale, performance, CI/CD (BUG-035 → BUG-040 corrigés) | ~15-23 jours |
+| ⚪ P0/P1 restant | #85, #87 Refonte architecturale, CI/CD (BUG-035 → BUG-040 corrigés, #86 livré) | ~11-17 jours |
-| **Total restant** | **7 items + finitions** | **~27-42 jours** |
+| **Total restant** | **6 items + finitions** | **~23-36 jours** |
 
 ---
 

docs/features/perf-phase3-86.md

@@ -0,0 +1,69 @@
+# #86 — Optimisation globale des performances (phase 3)
+
+> **Statut :** ✅ livré | **Zone :** backend (`indexer.py`, `mutations.py`)
+> **Prérequis déjà livrés :** BUG-033 (recherche via inverted index), BUG-040 (PDF lazy),
+> BUG-025 (caps regex).
+
+## Contexte
+
+La roadmap #86 demandait : recherche simple + tool IA via l'inverted index, indexation
+incrémentale + scan différentiel au démarrage, extraction PDF/excalidraw différée et caps
+CPU sur les opérations regex. Trois de ces cinq points étaient déjà couverts par des
+correctifs antérieurs ; cette livraison ferme les deux points restants.
+
+## Ce qui était déjà livré (rappel)
+
+| Point #86 | Livré par | État |
+|---|---|---|
+| Recherche simple + `search_fulltext` via inverted index | BUG-033 | `search()` récupère ses candidats via l'inverted index (intersection + expansion de préfixes), repli scan pendant la construction |
+| Extraction PDF différée | BUG-040 | `_scan_vault` ne lit que les métadonnées ; `enrich_pdf_texts()` extrait après index |
+| Caps CPU regex | BUG-025 | `validate_regex` (longueur ≤ 500, rejet quantificateurs imbriqués), contenu tronqué à 200 kio, matchs plafonnés à 1 000 |
+
+## Livré ici
+
+### 1. Scan différentiel au démarrage (`backend/indexer.py`)
+
+- `_scan_vault(..., previous_files)` : quand un snapshot `{relative_path: file_info}` est
+  fourni, toute entrée dont `size` **et** `modified` sont inchangés est réutilisée sans
+  lecture disque ni re-parse (copie du dict, tags recomptés, wikilinks ré-enregistrés
+  depuis le contenu caché pour reconstruire l'index de backlinks).
+- `build_index()` capture le snapshot précédent avant le `clear()` et le transmet à
+  chaque scan de vault (via `functools.partial` pour l'executor) ; `reload_single_vault()`
+  fait de même pour son vault. Seuls le `os.walk` + `stat` (bon marché) tournent à
+  chaque passe ; le retour inclut `reused` (hits différentiels, loggé par vault).
+- Premier démarrage (aucun snapshot) : comportement identique à avant.
+
+### 2. Extraction excalidraw différée (`backend/indexer.py`)
+
+- Le scan ne lit plus les `.excalidraw` / `.excalidraw.md` : titre dérivé du nom de
+  fichier, `content` vide, flag `excalidraw_text_pending` (plus de décompression
+  lz-string pendant le scan).
+- `enrich_pdf_texts()` traite désormais les deux flags (`pdf` + `excalidraw`) via
+  `_read_excalidraw_indexable_text()` exécuté dans l'executor, avec notification du hook
+  d'index incrémental comme pour les PDF. Nom conservé pour compatibilité (tests,
+  `main.py`, `reload_index`, `reload_single_vault` inchangés côté appel).
+- Le chemin incrémental fichier-à-fichier (`_index_single_file_sync`, watcher) reste
+  immédiat : un seul fichier ne justifie pas le différé.
+
+### 3. Garde-fou taille sur `replace_in_files` (`backend/services/mutations.py`)
+
+- Nouvelle constante `MAX_REPLACE_FILE_BYTES` (5 Mio) : tout fichier dépassant le plafond
+  est sauté (warning loggé) au lieu d'être lu intégralement puis balayé par le pattern
+  utilisateur. Complète les caps BUG-025 (qui couvrent la recherche, pas le remplacement
+  qui opère sur le contenu disque complet par nature).
+
+## Tests
+
+`tests/test_perf_phase3.py` (9 tests) : différé excalidraw au scan (`.excalidraw` +
+`.excalidraw.md`), remplissage par l'enrichissement, `reused == 0` au premier scan,
+réutilisation à l'identique, re-parse du fichier modifié, ajout/suppression, skip
+`replace` sur fichier surdimensionné + cas passant nominal.
+
+## Limites connues
+
+- Pas de persistance disque de l'index : le différentiel joue sur les rebuilds dans le
+  même processus (`reload_index`, `reload_single_vault`), pas entre deux redémarrages
+  (persistance = #85, phase 2).
+- La comparaison `size + mtime` ne détecte pas une modification qui conserverait taille
+  et mtime à la milliseconde près (cas pathologique, le watcher temps réel couvre les
+  modifications en cours d'exécution).

frontend/index.html

@@ -1486,6 +1486,18 @@
         <div class="editor-modal" id="config-modal">
             <div class="editor-container">
                 <div class="editor-header">
+                    <button
+                        class="help-hamburger"
+                        id="config-hamburger"
+                        data-i18n-attr="title:config.toc_toggle;aria-label:config.toc_toggle"
+                        title="Afficher le sommaire"
+                        aria-label="Afficher le sommaire"
+                    >
+                        <i
+                            data-lucide="menu"
+                            style="width: 18px; height: 18px"
+                        ></i>
+                    </button>
                     <div class="editor-title" data-i18n="header.menu_config">Configurations</div>
                     <div class="editor-actions">
                         <button

frontend/js/auth.js

@@ -1,6 +1,6 @@
 /* ObsiGate — Authentication: API helper, AuthManager, login form, AdminPanel */
 import { state } from './state.js';
-import { safeCreateIcons } from './utils.js';
+import { safeCreateIcons, escapeHtml } from './utils.js';
 import { showToast, closeHeaderMenu } from './ui.js';
 import { t, getLocale, setLocale } from './i18n.js';
 import { showWelcome } from './viewer.js';
@@ -266,6 +266,13 @@ const AuthManager = {
     });
   },
 
+  async changePassword(currentPassword, newPassword) {
+    return await api("/api/auth/change-password", {
+      method: "POST",
+      body: JSON.stringify({ current_password: currentPassword, new_password: newPassword }),
+    });
+  },
+
   async logout() {
     try {
       const token = this.getToken();
@@ -545,8 +552,22 @@ function _startWebauthnLogin(mfaSection, username, rememberMe) {
 
 
 function showMfaChallenge(username, rememberMe, loginBtn, loginErrorEl, mfaMethod) {
-  const loginBox = document.querySelector(".login-box");
+  // BUG-069: the challenge used to mount into `.login-box`, which does not
-  if (!loginBox) return;
+  // exist in index.html (the login markup is `#login-screen > .login-card >
+  // #login-form`) — querySelector returned null and the function silently
+  // returned, leaving the user stuck on the login page with no error after
+  // entering correct credentials. Mount into the real card, and never fail
+  // silently: surface the problem in the login error box instead.
+  const loginBox = document.querySelector(".login-card")
+    || document.getElementById("login-screen");
+  if (!loginBox) {
+    const fallback = loginErrorEl || document.getElementById("login-error");
+    if (fallback) {
+      fallback.textContent = t("mfa.challenge_unavailable");
+      fallback.classList.remove("hidden");
+    }
+    return;
+  }
 
   // Hide the normal login form
   const loginForm = document.getElementById("login-form");
@@ -1058,11 +1079,79 @@ async function initMfaSettings() {
     });
   }
 
+  // Password change (BUG-068: the "Sécurité du compte" section had no way to
+  // change the password although POST /api/auth/change-password exists).
+  _renderPasswordSection(area);
+
   // WebAuthn security keys section (ROADMAP #64)
   _renderWebauthnSection(area);
 }
 
 
+function _renderPasswordSection(container) {
+  if (!container || document.getElementById("password-settings")) return;
+  const section = document.createElement("div");
+  section.id = "password-settings";
+  section.className = "password-settings";
+  section.innerHTML = `
+    <h4 class="webauthn-title">${t("mfa.password_change_title")}</h4>
+    <p class="mfa-info-text">${t("mfa.password_change_desc")}</p>
+    <div class="form-group">
+      <label>${t("mfa.current_password_label")}</label>
+      <input type="password" id="pwd-current" class="config-input"
+             placeholder="${t('mfa.current_password_placeholder')}" autocomplete="current-password">
+    </div>
+    <div class="form-group">
+      <label>${t("mfa.new_password_label")}</label>
+      <input type="password" id="pwd-new" class="config-input"
+             placeholder="${t('mfa.new_password_placeholder')}" autocomplete="new-password">
+    </div>
+    <div class="form-group">
+      <label>${t("mfa.new_password_confirm_label")}</label>
+      <input type="password" id="pwd-confirm" class="config-input"
+             placeholder="${t('mfa.new_password_confirm_placeholder')}" autocomplete="new-password">
+    </div>
+    <div class="mfa-recovery-actions">
+      <button class="config-btn-primary" id="pwd-change-btn">${t("mfa.password_change_btn")}</button>
+    </div>
+    <p class="mfa-error hidden" id="pwd-change-error"></p>
+  `;
+  container.appendChild(section);
+
+  section.querySelector("#pwd-change-btn").addEventListener("click", async () => {
+    const errEl = section.querySelector("#pwd-change-error");
+    const current = section.querySelector("#pwd-current").value;
+    const next = section.querySelector("#pwd-new").value;
+    const confirm = section.querySelector("#pwd-confirm").value;
+    const btn = section.querySelector("#pwd-change-btn");
+    errEl.classList.add("hidden");
+    if (!current || !next || !confirm) {
+      errEl.textContent = t("mfa.fill_all_fields");
+      errEl.classList.remove("hidden");
+      return;
+    }
+    if (next !== confirm) {
+      errEl.textContent = t("mfa.password_mismatch");
+      errEl.classList.remove("hidden");
+      return;
+    }
+    btn.disabled = true;
+    try {
+      await AuthManager.changePassword(current, next);
+      showToast(t("mfa.password_changed"), "success");
+      section.querySelector("#pwd-current").value = "";
+      section.querySelector("#pwd-new").value = "";
+      section.querySelector("#pwd-confirm").value = "";
+    } catch (err) {
+      errEl.textContent = err.message || String(err);
+      errEl.classList.remove("hidden");
+    } finally {
+      btn.disabled = false;
+    }
+  });
+}
+
+
 async function _renderWebauthnSection(container) {
   if (!container || !window.PublicKeyCredential) return;
 
@@ -1085,10 +1174,10 @@ async function _renderWebauthnSection(container) {
   const listHtml = keys.length
     ? `<ul class="webauthn-key-list">${keys.map((k) => `
         <li class="webauthn-key-item">
-          <span class="webauthn-key-label">🔑 ${k.label || "Security key"}</span>
+          <span class="webauthn-key-label">🔑 ${escapeHtml(k.label || "Security key")}</span>
-          <span class="webauthn-key-meta">${(k.transports || []).join(", ") || "—"}</span>
+          <span class="webauthn-key-meta">${escapeHtml((k.transports || []).join(", ") || "—")}</span>
           <button class="config-btn-secondary config-btn-sm webauthn-key-remove"
-                  data-id="${k.credential_id}">${t("mfa.webauthn_remove")}</button>
+                  data-id="${escapeHtml(k.credential_id)}">${t("mfa.webauthn_remove")}</button>
         </li>`).join("")}</ul>`
     : `<p class="mfa-info-text">${t("mfa.webauthn_none")}</p>`;
 
@@ -1111,7 +1200,10 @@ async function _renderWebauthnSection(container) {
       const label = prompt(t("mfa.webauthn_label_prompt"), "Ma clé");
       const result = await AuthManager.webauthnRegister(credential, label || "Security key");
       if (result.recovery_codes && result.recovery_codes.length) {
-        _showRecoveryCodes(result.recovery_codes);
+        // BUG-068: first-time WebAuthn enable issues recovery codes. There is
+        // no #mfa-setup-flow-area in the "already enabled" view, so render
+        // them into the WebAuthn flow area instead of losing them.
+        _showRecoveryCodes(result.recovery_codes, "webauthn-flow-area");
       } else {
         showToast(t("mfa.webauthn_added"), "success");
       }
@@ -1145,16 +1237,28 @@ async function _startMfaSetup() {
 
   try {
     const data = await AuthManager.mfaSetup();
+    // BUG-068: the QR code comes from the backend as a local SVG data: URI
+    // (see POST /api/auth/mfa/totp/setup → qr_data_url). The previous
+    // third-party QR image was blocked by the CSP
+    // (img-src 'self' data: blob:) so it never displayed — and it leaked the
+    // otpauth URI (TOTP secret) to a third party. Fall back to the manual
+    // secret when the backend has no QR generator available.
+    const qrImg = data.qr_data_url
+      ? `<img id="mfa-qr-img" alt="QR Code" class="mfa-qr-code-img"
+              src="${data.qr_data_url}"
+              onerror="this.style.display='none';document.getElementById('mfa-qr-fallback').style.display='block';">`
+      : "";
+    const fallbackStyle = data.qr_data_url ? "display:none" : "";
     flowArea.innerHTML = `
       <div class="mfa-setup-card">
         <h4>${t("mfa.scan_qr")}</h4>
         <div class="mfa-qr-container">
-          <img id="mfa-qr-img" alt="QR Code" class="mfa-qr-code"
+          ${qrImg}
-               src="https://api.qrserver.com/v1/create-qr-code/?size=200x200&data=${encodeURIComponent(data.otpauth_uri)}">
+          <p class="mfa-info-text" id="mfa-qr-fallback" style="${fallbackStyle}">${t("mfa.qr_unavailable")}</p>
         </div>
-        <details class="mfa-secret-details">
+        <details class="mfa-secret-details" ${data.qr_data_url ? "" : "open"}>
           <summary>${t("mfa.manual_entry")}</summary>
-          <code class="mfa-secret-code">${data.secret}</code>
+          <code class="mfa-secret-code">${escapeHtml(data.secret)}</code>
         </details>
         <div class="mfa-verify-section">
           <label>${t("mfa.enter_code")}</label>
@@ -1201,12 +1305,16 @@ async function _startMfaSetup() {
 }
 
 
-function _showRecoveryCodes(codes) {
+function _showRecoveryCodes(codes, targetId) {
-  const flowArea = document.getElementById("mfa-setup-flow-area");
+  // BUG-068: the recovery codes must be visible wherever the enable flow ran.
-  const area = document.getElementById("mfa-setup-area");
+  // The TOTP flow owns #mfa-setup-flow-area, but the WebAuthn first-enable
+  // path (#webauthn-flow-area) has none — previously those codes were lost.
+  const flowArea = document.getElementById(targetId || "mfa-setup-flow-area")
+    || document.getElementById("webauthn-flow-area")
+    || document.getElementById("mfa-setup-area");
   if (!flowArea) return;
 
-  const codesHtml = codes.map(c => `<code class="mfa-recovery-code">${c}</code>`).join("\n");
+  const codesHtml = codes.map(c => `<code class="mfa-recovery-code">${escapeHtml(c)}</code>`).join("\n");
   flowArea.innerHTML = `
     <div class="mfa-recovery-card">
       <h4>🔑 ${t("mfa.recovery_codes_title")}</h4>

frontend/js/config.js

@@ -767,6 +767,10 @@ function initConfigModal() {
   openBtn.addEventListener("click", async () => {
     modal.classList.add("active");
     closeHeaderMenu();
+    // BUG-071: reset the TOC to the CSS default (mobile: hidden, desktop:
+    // visible) like the help modal does on open.
+    var configNavOnOpen = document.getElementById("config-nav");
+    if (configNavOnOpen) configNavOnOpen.style.display = '';
     renderConfigFilters();
     loadConfigFields();
     loadDiagnostics();
@@ -886,6 +890,44 @@ function initConfigModal() {
     });
   }
 
+  // BUG-071: mobile table of contents. #config-nav shares the .help-nav
+  // rule that hides it below 768px, but — unlike the help modal — the config
+  // modal had no toggle to reveal it, leaving mobile users with no way to
+  // reach a section. The header hamburger opens it as a top block; picking
+  // a section smooth-scrolls inside the modal and collapses it on mobile.
+  var configNav = document.getElementById("config-nav");
+  var configHamburger = document.getElementById("config-hamburger");
+  function _isConfigMobile() { return window.innerWidth <= 768; }
+  function _setConfigNav(open) {
+    if (!configNav) return;
+    configNav.style.display = open ? "flex" : "none";
+    if (configHamburger) configHamburger.classList.toggle("active", !!open);
+  }
+  if (configHamburger) {
+    configHamburger.addEventListener("click", function(e) {
+      e.stopPropagation();
+      var hidden = !configNav || configNav.style.display === "none" || configNav.style.display === "";
+      _setConfigNav(hidden);
+    });
+  }
+  if (configNav) {
+    configNav.querySelectorAll(".help-nav-link").forEach(function(a) {
+      a.addEventListener("click", function(e) {
+        var hash = a.getAttribute("href");
+        if (!hash || hash.charAt(0) !== "#") return;
+        var target = document.getElementById(hash.slice(1));
+        if (!target) return;
+        e.preventDefault();
+        configNav.querySelectorAll(".help-nav-link").forEach(function(o) { o.classList.remove("active"); });
+        a.classList.add("active");
+        if (typeof target.scrollIntoView === "function") {
+          target.scrollIntoView({ behavior: "smooth", block: "start" });
+        }
+        if (_isConfigMobile()) _setConfigNav(false);
+      });
+    });
+  }
+
   document.addEventListener("keydown", (e) => {
     if (e.key === "Escape" && modal.classList.contains("active")) {
       closeConfigModal();

frontend/js/i18n.js

@@ -5,6 +5,7 @@
  *   Static DOM:  data-i18n="key"             → textContent
  *                data-i18n-placeholder="key"  → placeholder
  *                data-i18n-attr:title="key"    → title attribute
+ *                data-i18n-attr="a:k1;b:k2"    → several attributes (";"-separated)
  *                data-i18n-html="key"         → innerHTML (use sparingly)
  *   Dynamic JS:  import { t } from './i18n.js';  t('key', {param: 'val'})
  *   Live reload: setLocale('en') updates every data-i18n element instantly.
@@ -183,13 +184,19 @@ function _applyDOM() {
     el.innerHTML = t(key);
   });
 
-  // data-i18n-attr:TITLE → sets any attribute
+  // data-i18n-attr:ATTR:key[;ATTR:key…] → sets any attribute(s).
+  // Single-pair form (data-i18n-attr="title:key") is preserved; multiple
+  // pairs are separated with ";" (BUG-071: the config TOC toggle needs both
+  // title and aria-label translated).
   document.querySelectorAll('[data-i18n-attr]').forEach(function (el) {
     const raw = el.getAttribute('data-i18n-attr');
-    const colon = raw.indexOf(':');
+    raw.split(';').forEach(function (pair) {
-    if (colon === -1) return;
+      const colon = pair.indexOf(':');
-    const attr = raw.substring(0, colon);
+      if (colon === -1) return;
-    const key = raw.substring(colon + 1);
+      const attr = pair.substring(0, colon).trim();
-    el.setAttribute(attr, t(key));
+      const key = pair.substring(colon + 1).trim();
+      if (!attr || !key) return;
+      el.setAttribute(attr, t(key));
+    });
   });
 }

frontend/locales/en.json

@@ -569,6 +569,7 @@
   "config.test": "Test",
   "config.timeout_label": "Search timeout (ms)",
   "config.title": "Settings",
+  "config.toc_toggle": "Show contents",
   "config.title_boost": "Title boost",
   "config.title_boost_hint": "Relevance multiplier for title matches",
   "config.title_boost_label": "Title boost",
@@ -1887,6 +1888,19 @@
   "mfa.disable_confirm_btn": "Disable 2FA",
   "mfa.disabled_success": "2FA has been disabled.",
   "mfa.fill_all_fields": "Please fill in all fields.",
+  "mfa.qr_unavailable": "QR code unavailable — use manual entry below.",
+  "mfa.password_change_title": "Password",
+  "mfa.password_change_desc": "Change your account password (min. 8 characters). All other sessions are invalidated.",
+  "mfa.current_password_label": "Current password",
+  "mfa.current_password_placeholder": "Your current password",
+  "mfa.new_password_label": "New password",
+  "mfa.new_password_placeholder": "Min. 8 characters",
+  "mfa.new_password_confirm_label": "Confirm new password",
+  "mfa.new_password_confirm_placeholder": "Repeat the new password",
+  "mfa.password_change_btn": "Change password",
+  "mfa.password_mismatch": "The two passwords do not match.",
+  "mfa.password_changed": "Password updated.",
+  "mfa.challenge_unavailable": "Verification screen unavailable — please reload the page.",
   "bookslm.title": "BooksLM",
   "bookslm.files_indexed": "{count} files indexed",
   "bookslm.chars_loaded": "{chars} chars loaded",

frontend/locales/fr.json

@@ -569,6 +569,7 @@
   "config.test": "Tester",
   "config.timeout_label": "Timeout recherche (ms)",
   "config.title": "Configuration",
+  "config.toc_toggle": "Afficher le sommaire",
   "config.title_boost": "Boost titre",
   "config.title_boost_hint": "Multiplicateur de pertinence pour les correspondances dans le titre",
   "config.title_boost_label": "Boost titre",
@@ -1887,6 +1888,19 @@
   "mfa.disable_confirm_btn": "Désactiver la 2FA",
   "mfa.disabled_success": "La 2FA a été désactivée.",
   "mfa.fill_all_fields": "Veuillez remplir tous les champs.",
+  "mfa.qr_unavailable": "QR code indisponible — utilisez la saisie manuelle ci-dessous.",
+  "mfa.password_change_title": "Mot de passe",
+  "mfa.password_change_desc": "Modifiez le mot de passe de votre compte (min. 8 caractères). Toutes les autres sessions sont invalidées.",
+  "mfa.current_password_label": "Mot de passe actuel",
+  "mfa.current_password_placeholder": "Votre mot de passe actuel",
+  "mfa.new_password_label": "Nouveau mot de passe",
+  "mfa.new_password_placeholder": "Min. 8 caractères",
+  "mfa.new_password_confirm_label": "Confirmer le nouveau mot de passe",
+  "mfa.new_password_confirm_placeholder": "Répétez le nouveau mot de passe",
+  "mfa.password_change_btn": "Changer le mot de passe",
+  "mfa.password_mismatch": "Les deux mots de passe ne correspondent pas.",
+  "mfa.password_changed": "Mot de passe mis à jour.",
+  "mfa.challenge_unavailable": "Écran de vérification indisponible — veuillez recharger la page.",
   "bookslm.title": "BooksLM",
   "bookslm.files_indexed": "{count} fichiers indexés",
   "bookslm.chars_loaded": "{chars} caractères chargés",

frontend/style.css

@@ -4347,6 +4347,76 @@ body.resizing-v {
   background: var(--bg-hover);
 }
 
+/* BUG-068: .config-btn-primary / .config-btn-danger were used by the account
+   security section (frontend/js/auth.js) but never defined — the buttons fell
+   back to the browser default and ignored the theme. Defined here with the
+   same conventions as .config-btn-save / .config-btn-secondary. */
+.config-btn-primary {
+  padding: 8px 16px;
+  border: 1px solid var(--accent);
+  border-radius: 6px;
+  background: var(--accent);
+  color: #fff;
+  font-family: "JetBrains Mono", monospace;
+  font-size: 0.8rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition: opacity 150ms;
+}
+.config-btn-primary:hover {
+  opacity: 0.9;
+}
+.config-btn-primary:disabled {
+  opacity: 0.55;
+  cursor: not-allowed;
+}
+.config-btn-danger {
+  padding: 8px 16px;
+  border: 1px solid var(--danger, #e74c3c);
+  border-radius: 6px;
+  background: var(--danger-bg, #3d1a18);
+  color: var(--danger, #ff7b72);
+  font-family: "JetBrains Mono", monospace;
+  font-size: 0.8rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition: opacity 150ms;
+}
+.config-btn-danger:hover {
+  opacity: 0.9;
+}
+.config-btn-danger:disabled {
+  opacity: 0.55;
+  cursor: not-allowed;
+}
+
+/* BUG-068: local QR code (backend SVG data: URI) + password section share the
+   security-tab card conventions. */
+.mfa-qr-code-img {
+  max-width: 200px;
+  border-radius: 8px;
+  background: #fff;
+  padding: 8px;
+}
+.password-settings {
+  margin-top: 20px;
+  padding-top: 16px;
+  border-top: 1px solid var(--border, #333);
+}
+.password-settings .form-group {
+  margin: 8px 0;
+}
+.password-settings .form-group label {
+  display: block;
+  font-size: 0.78rem;
+  color: var(--text-secondary, #aaa);
+  margin-bottom: 4px;
+}
+.password-settings .config-input {
+  width: 100%;
+  max-width: 320px;
+}
+
 /* --- AI keys section: accordion redesign (#104) --- */
 .ai-keys-header {
   display: flex;
@@ -4653,6 +4723,82 @@ body.resizing-v {
   }
 }
 
+/* BUG-071: Configurations modal — mobile usability (viewport ≤ 768px).
+   #config-nav shares the .help-nav rule that hides it, but the config modal
+   had no toggle (unlike the help modal): the header hamburger
+   (#config-hamburger, same .help-hamburger treatment) reveals it as a
+   collapsible top block. Two-column grids and fixed-width add-rows are
+   stacked/wrapped so nothing overflows a 360px viewport. */
+@media (max-width: 768px) {
+  /* TOC as a collapsible top block (JS toggles inline display flex/none,
+     which wins over the hiding rule); the list scrolls within a capped nav. */
+  #config-modal #config-nav {
+    width: 100%;
+    min-width: 0;
+    max-width: 100%;
+    border-right: none;
+    border-bottom: 1px solid var(--border);
+    max-height: 46vh;
+  }
+  /* Two-column grids → single column. */
+  #config-modal .ai-default-grid,
+  #config-modal .ai-provider-fields {
+    grid-template-columns: 1fr;
+  }
+  /* Add-rows (tokens, webhooks, tag filters) wrap instead of overflowing. */
+  #config-modal .config-add-row,
+  #config-modal .config-add-pattern {
+    flex-wrap: wrap;
+  }
+  #config-modal .config-add-row .config-input,
+  #config-modal .config-add-pattern .config-input,
+  #config-modal .config-add-row .config-select {
+    flex: 1 1 140px;
+    width: auto !important; /* override fixed inline widths (180/140/100px) */
+    min-width: 0;
+  }
+  #config-modal .config-add-row .config-btn-add,
+  #config-modal .config-add-pattern .config-btn-add {
+    flex: 1 1 auto;
+    min-height: 44px;
+  }
+  /* Webhook / token / share rows wrap; long URLs and meta take their own
+     line instead of squeezing the delete control off-screen. */
+  #config-modal .webhook-item,
+  #config-modal .token-item,
+  #config-modal .share-item {
+    flex-wrap: wrap;
+  }
+  #config-modal .webhook-url,
+  #config-modal .token-meta,
+  #config-modal .share-url {
+    flex: 1 1 100%;
+    min-width: 0;
+    white-space: normal;
+    overflow-wrap: anywhere;
+  }
+  #config-modal .webhook-delete,
+  #config-modal .token-delete,
+  #config-modal .share-revoke {
+    min-width: 44px;
+    min-height: 44px;
+  }
+  /* Sticky AI-keys footer: full-width touch-friendly buttons. */
+  #config-modal .ai-keys-footer .config-btn-save,
+  #config-modal .ai-keys-footer .config-btn-secondary {
+    flex: 1 1 100%;
+    min-height: 44px;
+  }
+  /* Long inline code in tips (ex. MCP usage snippet) must wrap. */
+  #config-modal .qh-tip {
+    flex-wrap: wrap;
+  }
+  #config-modal .qh-tip span {
+    min-width: 0;
+    overflow-wrap: anywhere;
+  }
+}
+
 /* --- Toast notifications --- */
 .toast-container {
   position: fixed;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "obsigate",
-  "version": "2.15.0",
+  "version": "2.16.5",
   "description": "**Porte d'entrée web ultra-léger pour vos vaults Obsidian** — Accédez, naviguez et recherchez dans toutes vos notes Obsidian depuis n'importe quel appareil via une interface web moderne et responsive.",
   "main": "patch.js",
   "directories": {

tests/e2e/config-mobile.spec.js

@@ -0,0 +1,94 @@
+/**
+ * E2E tests for the Configurations modal on mobile (BUG-071).
+ *
+ * Runs only under the `chromium-mobile` Playwright project (viewport ≤ 768px);
+ * skipped on the desktop project that the CI job executes — same convention
+ * as mobile-editor.spec.js.
+ *
+ * Covered:
+ *  - the TOC hamburger (#config-hamburger) is visible and reveals #config-nav,
+ *    which is hidden by default on mobile;
+ *  - picking a TOC entry scrolls to the section, marks the link active and
+ *    collapses the nav;
+ *  - the modal content does not overflow horizontally at 393px.
+ *
+ * Run:
+ *   npx playwright test tests/e2e/config-mobile.spec.js --project=chromium-mobile
+ *   (ObsiGate listening on http://localhost:2029, auth disabled)
+ */
+
+import { test, expect } from '@playwright/test';
+
+const MOBILE_MAX_WIDTH = 768;
+
+async function boot(page) {
+  await page.goto('/');
+  await page.waitForSelector('#app:not(.hidden)', { timeout: 15000 });
+  await expect(page.locator('#header-menu-btn')).toBeVisible({ timeout: 15000 });
+}
+
+async function openConfigModal(page) {
+  await page.locator('#header-menu-btn').click();
+  await page.locator('#config-open-btn').click();
+  await expect(page.locator('#config-modal.active')).toBeVisible();
+}
+
+test.describe('Configurations modal on mobile (BUG-071)', () => {
+  test('hamburger reveals the table of contents', async ({ page, viewport }) => {
+    test.skip((viewport?.width ?? 0) > MOBILE_MAX_WIDTH, 'Mobile viewport required');
+    await boot(page);
+    await openConfigModal(page);
+
+    // TOC hidden by default on mobile, hamburger visible.
+    await expect(page.locator('#config-hamburger')).toBeVisible();
+    await expect(page.locator('#config-nav')).toBeHidden();
+
+    await page.locator('#config-hamburger').click();
+    await expect(page.locator('#config-nav')).toBeVisible();
+  });
+
+  test('picking a section scrolls to it and collapses the nav', async ({ page, viewport }) => {
+    test.skip((viewport?.width ?? 0) > MOBILE_MAX_WIDTH, 'Mobile viewport required');
+    await boot(page);
+    await openConfigModal(page);
+
+    await page.locator('#config-hamburger').click();
+    const link = page.locator('#config-nav a[href="#cfg-tokens"]');
+    await expect(link).toBeVisible();
+    await link.click();
+
+    // Nav collapses on mobile after selection…
+    await expect(page.locator('#config-nav')).toBeHidden();
+    // …the link is marked active…
+    await expect(link).toHaveClass(/active/);
+    // …and the section scrolls into view inside the modal (smooth scroll:
+    // poll for the settled position instead of racing the animation).
+    await expect
+      .poll(
+        async () => {
+          const box = await page.locator('#cfg-tokens').boundingBox();
+          const modalBox = await page.locator('#config-modal').boundingBox();
+          if (!box || !modalBox) return Number.POSITIVE_INFINITY;
+          return box.y - (modalBox.y + modalBox.height);
+        },
+        { timeout: 8000 },
+      )
+      .toBeLessThanOrEqual(0);
+  });
+
+  test('no horizontal overflow at 393px', async ({ page, viewport }) => {
+    test.skip((viewport?.width ?? 0) > MOBILE_MAX_WIDTH, 'Mobile viewport required');
+    await boot(page);
+    await openConfigModal(page);
+
+    for (const section of ['#cfg-ai', '#cfg-tokens', '#cfg-webhooks', '#cfg-partages-publics']) {
+      await page.locator('#config-hamburger').click();
+      await page.locator(`#config-nav a[href="${section}"]`).click();
+    }
+    const overflow = await page.evaluate(() => {
+      const scroller = document.getElementById('config-scroll');
+      return scroller.scrollWidth - scroller.clientWidth;
+    });
+    expect(overflow).toBeLessThanOrEqual(1);
+  });
+});

tests/frontend/config-mobile.test.mjs

@@ -0,0 +1,131 @@
+#!/usr/bin/env node
+/**
+ * ObsiGate — Configurations modal mobile usability non-regression tests (BUG-071).
+ *
+ * Static checks (no jsdom needed — runs in the "Frontend unit tests" CI step):
+ *  - BUG-071a: #config-nav shared the .help-nav rule that hides it below
+ *    768px, but the config modal had no toggle (the help modal has
+ *    #help-hamburger) → the table of contents was unreachable on mobile.
+ *    The header must carry #config-hamburger (same .help-hamburger
+ *    treatment: hidden on desktop, visible on mobile) wired in config.js.
+ *  - BUG-071b: the TOC links were bare anchors with no JS — no active state,
+ *    no auto-collapse on mobile, unreliable scrolling inside the modal.
+ *    config.js must smooth-scroll to the section, mark it active and collapse
+ *    the nav on mobile, and reset the nav on open.
+ *  - BUG-071c: two-column grids (.ai-default-grid, .ai-provider-fields),
+ *    fixed-width add-rows (.config-add-row, 180/140/100px inline widths) and
+ *    single-line webhook/token/share items overflowed a 360px viewport.
+ *    style.css must stack/wrap them below 768px with 44px touch targets.
+ *  - BUG-071d: every #config-nav link target must exist (dead-anchor guard,
+ *    same class of bug as BUG-067 for the help modal).
+ *  - BUG-071e: data-i18n-attr supports several "attr:key" pairs (";"-
+ *    separated) so the toggle carries translated title AND aria-label.
+ *
+ * Usage: node tests/frontend/config-mobile.test.mjs
+ */
+
+import { strict as assert } from "node:assert";
+import { readFileSync } from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const ROOT = path.join(__dirname, "..", "..");
+
+const indexHtml = readFileSync(path.join(ROOT, "frontend", "index.html"), "utf8");
+const configJs = readFileSync(path.join(ROOT, "frontend", "js", "config.js"), "utf8");
+const i18nJs = readFileSync(path.join(ROOT, "frontend", "js", "i18n.js"), "utf8");
+const css = readFileSync(path.join(ROOT, "frontend", "style.css"), "utf8");
+const fr = JSON.parse(readFileSync(path.join(ROOT, "frontend", "locales", "fr.json"), "utf8"));
+const en = JSON.parse(readFileSync(path.join(ROOT, "frontend", "locales", "en.json"), "utf8"));
+
+function test(label, fn) {
+  try {
+    fn();
+    console.log("  ✓ " + label);
+  } catch (err) {
+    console.error("  ✗ " + label + "\n    " + err.message);
+    process.exitCode = 1;
+  }
+}
+
+// ── BUG-071a: header TOC toggle ─────────────────────────────────────────────
+test("index.html — #config-hamburger exists in the config modal header", () => {
+  const modal = indexHtml.match(/<div class="editor-modal" id="config-modal">([\s\S]*?)<div class="editor-body help-body" id="config-body">/);
+  assert.ok(modal, "#config-modal with #config-body not found");
+  const header = modal[1].match(/<div class="editor-header">([\s\S]*?)<\/div>\s*<\/div>/);
+  assert.ok(header, "config modal .editor-header not found");
+  assert.match(header[1], /id="config-hamburger"/, "no #config-hamburger in the config header — TOC unreachable on mobile");
+  assert.match(header[1], /help-hamburger/, "the toggle must reuse .help-hamburger (desktop-hidden, mobile-visible)");
+  assert.match(header[1], /aria-label/, "the toggle needs an accessible label");
+  assert.match(header[1], /config\.toc_toggle/, "the toggle label must use the i18n key config.toc_toggle");
+});
+
+test("i18n — config.toc_toggle exists in FR and EN", () => {
+  assert.ok(fr["config.toc_toggle"], "fr.json missing config.toc_toggle");
+  assert.ok(en["config.toc_toggle"], "en.json missing config.toc_toggle");
+  assert.notEqual(fr["config.toc_toggle"], "config.toc_toggle", "FR value must be translated");
+  assert.notEqual(en["config.toc_toggle"], "config.toc_toggle", "EN value must be translated");
+});
+
+// ── BUG-071b: TOC behaviour in config.js ────────────────────────────────────
+test("config.js — hamburger toggles #config-nav", () => {
+  assert.match(configJs, /getElementById\("config-hamburger"\)/, "no binding on #config-hamburger");
+  assert.match(configJs, /_setConfigNav\(/, "TOC open/close helper missing");
+});
+
+test("config.js — TOC links smooth-scroll, mark active, collapse on mobile", () => {
+  assert.match(configJs, /#config-nav[\s\S]{0,400}?help-nav-link/, "no handler on the #config-nav links");
+  assert.match(configJs, /scrollIntoView/, "section scroll must use scrollIntoView inside the modal");
+  assert.match(configJs, /innerWidth <= 768/, "the nav must auto-collapse on mobile viewports only");
+});
+
+test("config.js — TOC display reset when the modal opens", () => {
+  assert.match(configJs, /configNavOnOpen[\s\S]{0,120}?style\.display = ''/, "stale inline display would stick across sessions");
+});
+
+// ── BUG-071c: mobile CSS ────────────────────────────────────────────────────
+test("style.css — config TOC becomes a capped top block on mobile", () => {
+  assert.match(css, /#config-modal #config-nav/, "no mobile rule scoped to #config-modal #config-nav");
+  assert.match(css, /#config-modal #config-nav[\s\S]{0,400}?max-height/, "the opened TOC must be height-capped so content stays reachable");
+});
+
+test("style.css — two-column config grids stack on mobile", () => {
+  assert.match(css, /#config-modal \.ai-default-grid/, ".ai-default-grid still 2 columns on mobile");
+  assert.match(css, /#config-modal \.ai-provider-fields/, ".ai-provider-fields still 3fr/2fr on mobile");
+  assert.match(css, /grid-template-columns: 1fr;/, "mobile grids must collapse to a single column");
+});
+
+test("style.css — add-rows wrap and fixed inline widths are neutralised", () => {
+  assert.match(css, /#config-modal \.config-add-row/, "no mobile rule for .config-add-row (token/webhook rows overflow)");
+  assert.match(css, /width: auto !important/, "fixed inline widths (180/140/100px) must be overridden on mobile");
+  assert.match(css, /min-height: 44px/, "mobile action controls need 44px touch targets");
+});
+
+test("style.css — webhook/token/share rows wrap on mobile", () => {
+  for (const cls of ["webhook-item", "token-item", "share-item"]) {
+    assert.match(css, new RegExp("#config-modal \\." + cls), `.${cls} has no mobile wrap rule`);
+  }
+});
+
+// ── BUG-071d: dead-anchor guard ─────────────────────────────────────────────
+test("index.html — every #config-nav link resolves to an element id", () => {
+  const nav = indexHtml.match(/<nav class="help-nav" id="config-nav">([\s\S]*?)<\/nav>/);
+  assert.ok(nav, "#config-nav not found");
+  const hrefs = [...nav[1].matchAll(/href="(#[^"]+)"/g)].map((m) => m[1].slice(1));
+  assert.ok(hrefs.length > 0, "no links in #config-nav");
+  const missing = hrefs.filter((id) => !indexHtml.includes(`id="${id}"`));
+  assert.deepEqual(missing, [], `dead TOC anchors (cf. BUG-067): ${missing.join(", ")}`);
+});
+
+// ── BUG-071e: multi-pair data-i18n-attr ─────────────────────────────────────
+test("i18n.js — data-i18n-attr supports several attr:key pairs", () => {
+  assert.match(i18nJs, /split\(['"];/, "pairs must be split on ';'");
+  assert.match(i18nJs, /el\.setAttribute\(attr, t\(key\)\)/, "each pair must set its attribute");
+});
+
+if (process.exitCode) {
+  console.error("\nConfig mobile tests FAILED");
+} else {
+  console.log("\nAll config mobile tests passed.");
+}

tests/frontend/mfa-settings.test.mjs

@@ -0,0 +1,136 @@
+#!/usr/bin/env node
+/**
+ * ObsiGate — Account security section non-regression tests (BUG-068).
+ *
+ * Static checks on the "🔒 Sécurité du compte" configuration section:
+ *  - BUG-068a: the TOTP QR code must NOT depend on the third-party
+ *    https://api.qrserver.com service (blocked by the CSP
+ *    `img-src 'self' data: blob:`, so the QR never displayed — and the
+ *    otpauth URI, TOTP secret included, leaked to a third party). The setup
+ *    endpoint returns a local SVG data: URI (qr_data_url) instead.
+ *  - BUG-068b: .config-btn-primary / .config-btn-danger are used by
+ *    frontend/js/auth.js but were never defined — buttons fell back to the
+ *    browser default and ignored the theme. They must exist and derive from
+ *    theme variables.
+ *  - BUG-068c: recovery codes issued on first-time WebAuthn enable were lost
+ *    (no #mfa-setup-flow-area in the "already enabled" view).
+ *  - BUG-068d: the section had no password change although
+ *    POST /api/auth/change-password exists.
+ *
+ * Usage: node tests/frontend/mfa-settings.test.mjs
+ */
+
+import { strict as assert } from "node:assert";
+import { readFileSync } from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const ROOT = path.join(__dirname, "..", "..");
+
+const auth = readFileSync(path.join(ROOT, "frontend", "js", "auth.js"), "utf8");
+const css = readFileSync(path.join(ROOT, "frontend", "style.css"), "utf8");
+const router = readFileSync(path.join(ROOT, "backend", "auth", "router.py"), "utf8");
+const indexHtml = readFileSync(path.join(ROOT, "frontend", "index.html"), "utf8");
+const fr = JSON.parse(readFileSync(path.join(ROOT, "frontend", "locales", "fr.json"), "utf8"));
+const en = JSON.parse(readFileSync(path.join(ROOT, "frontend", "locales", "en.json"), "utf8"));
+
+function test(label, fn) {
+  try {
+    fn();
+    console.log("  ✓ " + label);
+  } catch (err) {
+    console.error("  ✗ " + label + "\n    " + err.message);
+    process.exitCode = 1;
+  }
+}
+
+// ── QR code: local data URI, no third-party service ─────────────────────────
+test("auth.js — no external QR service left (CSP blocks it, secret leaks)", () => {
+  assert.doesNotMatch(auth, /qrserver\.com/, "api.qrserver.com is blocked by img-src and leaks the otpauth URI");
+  assert.doesNotMatch(auth, /https:\/\/api\./, "no third-party https://api.* image may carry the TOTP secret");
+});
+
+test("auth.js — setup flow renders the backend qr_data_url with a fallback", () => {
+  assert.match(auth, /qr_data_url/, "the QR <img> must use the backend-provided qr_data_url");
+  assert.match(auth, /mfa-qr-fallback/, "a manual-entry fallback must show when no QR is available");
+  assert.match(auth, /mfa\.qr_unavailable/, "the fallback needs its i18n string");
+});
+
+test("backend — /mfa/totp/setup returns a local qr_data_url", () => {
+  assert.match(router, /qr_data_url/, "setup must include qr_data_url in its response");
+  assert.match(router, /svg_data_uri/, "the QR must be generated locally (segno SVG data URI)");
+  assert.match(router, /import segno/, "segno import must stay local with a graceful fallback");
+});
+
+// ── Buttons follow the theme ────────────────────────────────────────────────
+for (const cls of ["config-btn-primary", "config-btn-danger"]) {
+  test(`style.css — .${cls} is defined from theme variables`, () => {
+    const rule = css.match(new RegExp(`\\.${cls}\\s*\\{([^}]*)\\}`));
+    assert.ok(rule, `.${cls} rule not found — buttons fall back to the browser default`);
+    assert.match(rule[1], /var\(--/, `.${cls} must derive from CSS theme variables, not hardcoded colors`);
+  });
+}
+
+test("style.css — themed buttons have disabled states", () => {
+  assert.match(css, /\.config-btn-primary:disabled/, ".config-btn-primary needs a disabled state");
+  assert.match(css, /\.config-btn-danger:disabled/, ".config-btn-danger needs a disabled state");
+});
+
+// ── Recovery codes are never lost ───────────────────────────────────────────
+test("auth.js — _showRecoveryCodes falls back to the WebAuthn flow area", () => {
+  const fn = auth.match(/function _showRecoveryCodes\(codes(?:, targetId)?\) \{([\s\S]*?)\n\}/);
+  assert.ok(fn, "_showRecoveryCodes helper not found");
+  assert.match(fn[1], /webauthn-flow-area/, "codes issued on first WebAuthn enable must render without #mfa-setup-flow-area");
+});
+
+// ── Password change lives in the security section ───────────────────────────
+test("auth.js — password change calls POST /api/auth/change-password", () => {
+  assert.match(auth, /\/api\/auth\/change-password/, "changePassword must hit the existing endpoint");
+  assert.match(auth, /_renderPasswordSection/, "the security section must render a password card");
+});
+
+test("i18n — password + QR strings exist in FR and EN", () => {
+  for (const key of [
+    "mfa.qr_unavailable",
+    "mfa.password_change_title",
+    "mfa.password_change_btn",
+    "mfa.password_mismatch",
+    "mfa.password_changed",
+    "mfa.challenge_unavailable",
+  ]) {
+    assert.ok(fr[key], `fr.json missing ${key}`);
+    assert.ok(en[key], `en.json missing ${key}`);
+  }
+});
+
+// ── BUG-069: the MFA challenge must mount into a real DOM node ──────────────
+test("auth.js — challenge mounts into .login-card (exists in index.html)", () => {
+  assert.doesNotMatch(
+    auth,
+    /querySelector\("\.login-box"\)/,
+    "showMfaChallenge queried .login-box, which never existed in index.html → silent return, login stuck with no error",
+  );
+  assert.match(
+    auth,
+    /querySelector\("\.login-card"\)/,
+    "the challenge must mount into the real login container",
+  );
+  assert.ok(
+    indexHtml.includes('class="login-card"'),
+    "index.html must contain the .login-card mount point",
+  );
+});
+
+test("auth.js — showMfaChallenge never fails silently", () => {
+  const fn = auth.match(/function showMfaChallenge\(username, rememberMe, loginBtn, loginErrorEl, mfaMethod\) \{([\s\S]*?)\n  \/\/ WebAuthn second factor/);
+  assert.ok(fn, "showMfaChallenge helper not found");
+  assert.match(fn[1], /challenge_unavailable/, "a missing mount point must surface an error, not silently return");
+  assert.doesNotMatch(fn[1], /if \(!loginBox\) return;/, "bare silent return is forbidden in the challenge flow");
+});
+
+if (process.exitCode) {
+  console.error("\nMFA settings tests FAILED");
+} else {
+  console.log("\nAll MFA settings tests passed.");
+}

tests/test_mfa.py

@@ -248,6 +248,22 @@ class TestMfaApiEndpoints:
         assert "otpauth://totp/" in data["otpauth_uri"]
         assert len(data["secret"]) >= 16
 
+    def test_mfa_setup_returns_local_qr_data_url(self, mfa_client):
+        """BUG-068: the setup response carries a CSP-safe local QR code.
+
+        The previous client used an https://api.qrserver.com image, blocked by
+        the CSP (img-src 'self' data: blob:) — the QR never displayed — and
+        leaking the otpauth URI to a third party.
+        """
+        token, _ = _login(mfa_client)
+        resp = mfa_client.post("/api/auth/mfa/totp/setup", headers=_auth_headers(token))
+        assert resp.status_code == 200
+        data = resp.json()
+        qr_data_url = data.get("qr_data_url")
+        assert qr_data_url, "setup must return a local qr_data_url"
+        assert qr_data_url.startswith("data:image/svg+xml"), qr_data_url[:60]
+        assert "qrserver.com" not in qr_data_url
+
     def test_mfa_enable_flow(self, mfa_client):
         token, _ = _login(mfa_client)
         headers = _auth_headers(token)

tests/test_perf_phase3.py

@@ -0,0 +1,220 @@
+# tests/test_perf_phase3.py — Optimisation globale des performances (#86, phase 3)
+"""Non-regression tests for the #86 performance work.
+
+Covers the three remaining #86 items (the inverted-index search, the lazy PDF
+extraction and the regex CPU caps were already delivered via BUG-033, BUG-040
+and BUG-025):
+
+- differential vault scan (unchanged files reused without disk re-read),
+- deferred excalidraw text extraction (scan cheap, enrichment fills text),
+- file-size guard on ``replace_in_files`` (oversized files skipped).
+"""
+import json
+import os
+from pathlib import Path
+
+import pytest
+
+
+def _excalidraw_doc(*texts: str) -> str:
+    elements = [
+        {
+            "id": f"el{i}",
+            "type": "text",
+            "text": text,
+            "x": 0,
+            "y": i * 20,
+            "width": 100,
+            "height": 20,
+        }
+        for i, text in enumerate(texts)
+    ]
+    return json.dumps({"type": "excalidraw", "version": 2, "elements": elements})
+
+
+# ═══════════════════════════════════════════════════════════════════
+# Deferred excalidraw extraction
+# ═══════════════════════════════════════════════════════════════════
+
+class TestExcalidrawDeferred:
+    def test_scan_defers_excalidraw_text(self, tmp_path: Path):
+        """The scan must not parse diagram JSON — content empty + pending flag."""
+        from backend.indexer import _scan_vault
+
+        vault = tmp_path / "vault"
+        vault.mkdir()
+        (vault / "diagram.excalidraw").write_text(
+            _excalidraw_doc("hello diagram"), encoding="utf-8"
+        )
+
+        result = _scan_vault("V", str(vault), {})
+        entry = next(f for f in result["files"] if f["path"] == "diagram.excalidraw")
+        assert entry["content"] == ""
+        assert entry["content_preview"] == ""
+        assert entry.get("excalidraw_text_pending") is True
+        assert entry["title"] == "diagram"
+
+    def test_scan_defers_excalidraw_md(self, tmp_path: Path):
+        """``.excalidraw.md`` files are deferred too (no lz decompression at scan)."""
+        from backend.indexer import _scan_vault
+
+        vault = tmp_path / "vault"
+        vault.mkdir()
+        (vault / "board.excalidraw.md").write_text(
+            "---\ntitle: Board\n---\n" + _excalidraw_doc("board text"),
+            encoding="utf-8",
+        )
+
+        result = _scan_vault("V", str(vault), {})
+        entry = next(f for f in result["files"] if f["path"] == "board.excalidraw.md")
+        assert entry["content"] == ""
+        assert entry.get("excalidraw_text_pending") is True
+
+    @pytest.mark.asyncio
+    async def test_enrich_fills_excalidraw_text(self, tmp_path: Path):
+        """The deferred pass extracts diagram text and clears the flag."""
+        import backend.indexer as idx
+
+        vault = tmp_path / "vault"
+        vault.mkdir()
+        (vault / "diagram.excalidraw").write_text(
+            _excalidraw_doc("uniquediagword"), encoding="utf-8"
+        )
+        file_info = {
+            "path": "diagram.excalidraw",
+            "title": "diagram",
+            "tags": [],
+            "content": "",
+            "content_preview": "",
+            "size": 0,
+            "modified": "",
+            "extension": ".excalidraw",
+            "excalidraw_text_pending": True,
+        }
+        with idx._index_lock:
+            idx.index["ExcalV"] = {
+                "files": [file_info],
+                "tags": {},
+                "path": str(vault),
+                "paths": [],
+            }
+        try:
+            count = await idx.enrich_pdf_texts("ExcalV")
+            assert count == 1
+            assert "uniquediagword" in file_info["content"]
+            assert file_info["content_preview"]
+            assert "excalidraw_text_pending" not in file_info
+        finally:
+            with idx._index_lock:
+                idx.index.pop("ExcalV", None)
+
+
+# ═══════════════════════════════════════════════════════════════════
+# Differential scan
+# ═══════════════════════════════════════════════════════════════════
+
+class TestDifferentialScan:
+    def test_first_scan_reports_zero_reused(self, test_vault_dir):
+        from backend.indexer import _scan_vault
+
+        result = _scan_vault("TestVault", test_vault_dir)
+        assert result["reused"] == 0
+        assert len(result["files"]) >= 3
+
+    def test_unchanged_files_are_reused(self, test_vault_dir):
+        from backend.indexer import _scan_vault
+
+        first = _scan_vault("TestVault", test_vault_dir)
+        previous = {f["path"]: f for f in first["files"]}
+        second = _scan_vault("TestVault", test_vault_dir, None, previous)
+        assert second["reused"] == len(first["files"])
+        assert {f["path"] for f in second["files"]} == {f["path"] for f in first["files"]}
+        # Tags and titles survive the reuse path.
+        assert second["tags"] == first["tags"]
+        for f in second["files"]:
+            assert f["content"] == previous[f["path"]]["content"]
+
+    def test_changed_file_is_reparsed(self, test_vault_dir):
+        from backend.indexer import _scan_vault
+
+        first = _scan_vault("TestVault", test_vault_dir)
+        previous = {f["path"]: f for f in first["files"]}
+
+        target = Path(test_vault_dir) / "note1.md"
+        target.write_text(
+            target.read_text(encoding="utf-8") + "\nMot unique de reparse differentials.",
+            encoding="utf-8",
+        )
+        # Force a visibly different mtime (coarse filesystems).
+        os.utime(target, (9999999999, 9999999999))
+
+        second = _scan_vault("TestVault", test_vault_dir, None, previous)
+        assert second["reused"] == len(first["files"]) - 1
+        changed = next(f for f in second["files"] if f["path"] == "note1.md")
+        assert "Mot unique de reparse differentials" in changed["content"]
+
+    def test_added_and_deleted_files(self, test_vault_dir):
+        from backend.indexer import _scan_vault
+
+        first = _scan_vault("TestVault", test_vault_dir)
+        previous = {f["path"]: f for f in first["files"]}
+
+        (Path(test_vault_dir) / "brand-new.md").write_text(
+            "# Brand new\nFresh content here.", encoding="utf-8"
+        )
+        (Path(test_vault_dir) / "config.json").unlink()
+
+        second = _scan_vault("TestVault", test_vault_dir, None, previous)
+        paths = {f["path"] for f in second["files"]}
+        assert "brand-new.md" in paths
+        assert "config.json" not in paths
+        assert second["reused"] == len(first["files"]) - 1
+
+
+# ═══════════════════════════════════════════════════════════════════
+# replace_in_files size guard
+# ═══════════════════════════════════════════════════════════════════
+
+class TestReplaceSizeGuard:
+    def test_oversized_file_is_skipped(self, tmp_path: Path, monkeypatch):
+        """Files over MAX_REPLACE_FILE_BYTES are skipped, not read."""
+        from backend.services import mutations
+
+        big = tmp_path / "big.md"
+        big.write_text("findme " * 100, encoding="utf-8")
+
+        monkeypatch.setattr(mutations, "MAX_REPLACE_FILE_BYTES", 10)
+        monkeypatch.setattr(
+            "backend.services.search.advanced_search_vaults",
+            lambda *a, **k: {
+                "results": [{"vault": "V", "path": "big.md", "title": "big"}],
+            },
+        )
+        monkeypatch.setattr(
+            mutations, "get_vault_root", lambda vault: tmp_path
+        )
+
+        out = mutations.replace_in_files("findme", "replaced", vault="V", dry_run=True)
+        assert out["matches"] == []
+        assert out["total_matches"] == 0
+
+    def test_small_file_still_processed(self, tmp_path: Path, monkeypatch):
+        from backend.services import mutations
+
+        small = tmp_path / "small.md"
+        small.write_text("findme once", encoding="utf-8")
+
+        monkeypatch.setattr(mutations, "MAX_REPLACE_FILE_BYTES", 10_000_000)
+        monkeypatch.setattr(
+            "backend.services.search.advanced_search_vaults",
+            lambda *a, **k: {
+                "results": [{"vault": "V", "path": "small.md", "title": "small"}],
+            },
+        )
+        monkeypatch.setattr(
+            mutations, "get_vault_root", lambda vault: tmp_path
+        )
+
+        out = mutations.replace_in_files("findme", "replaced", vault="V", dry_run=True)
+        assert out["total_matches"] == 1
+        assert out["matches"][0]["path"] == "small.md"

tests/test_webauthn.py

@@ -134,8 +134,8 @@ class TestWebauthnModule:
         w._pending.clear()
         w._store_challenge("u2:register")
         key = "u2:register"
-        ch, _ = w._pending[key]
+        ch, _ = w._pending[key][0]
-        w._pending[key] = (ch, _t.time() - 1)
+        w._pending[key] = [(ch, _t.time() - 1)]
         assert w._take_challenge(key) is None
 
     def test_full_registration_and_authentication_roundtrip(self):
@@ -337,3 +337,131 @@ class TestWebauthnApi:
         assert r2.status_code == 200
         st = wa_client.get("/api/auth/mfa/status", headers=headers).json()
         assert st["mfa_enabled"] is False
+
+
+# ── BUG-070: relying party derived from the request ─────────────────────
+#
+# The old defaults (rp_id "localhost", origins ["http://localhost"]) rejected
+# every real access URL: "Unexpected client data origin
+# "http://localhost:2020", expected one of ['http://localhost']".
+
+def _fake_request(host, scheme="http", forwarded_host=None, forwarded_proto=None):
+    from fastapi import Request
+
+    headers = [(b"host", host.encode())]
+    if forwarded_host is not None:
+        headers.append((b"x-forwarded-host", forwarded_host.encode()))
+    if forwarded_proto is not None:
+        headers.append((b"x-forwarded-proto", forwarded_proto.encode()))
+    return Request({
+        "type": "http", "method": "POST", "path": "/",
+        "headers": headers, "scheme": scheme,
+        "server": ("testserver", 80), "client": ("127.0.0.1", 5000),
+    })
+
+
+class TestRelyingPartyResolution:
+    def test_defaults_without_request(self, monkeypatch):
+        import backend.auth.webauthn_mfa as w
+
+        monkeypatch.delenv("OBSIGATE_WEBAUTHN_RP_ID", raising=False)
+        monkeypatch.delenv("OBSIGATE_WEBAUTHN_ORIGINS", raising=False)
+        assert w.resolve_relying_party(None) == ("localhost", ["http://localhost"])
+
+    def test_derives_host_with_port(self, monkeypatch):
+        """Exact BUG-070 report: http://localhost:2020 was rejected."""
+        import backend.auth.webauthn_mfa as w
+
+        monkeypatch.delenv("OBSIGATE_WEBAUTHN_RP_ID", raising=False)
+        monkeypatch.delenv("OBSIGATE_WEBAUTHN_ORIGINS", raising=False)
+        rp, origins = w.resolve_relying_party(_fake_request("localhost:2020"))
+        assert rp == "localhost"
+        assert origins == ["http://localhost:2020"]
+
+    def test_derives_ip_host(self, monkeypatch):
+        import backend.auth.webauthn_mfa as w
+
+        monkeypatch.delenv("OBSIGATE_WEBAUTHN_RP_ID", raising=False)
+        monkeypatch.delenv("OBSIGATE_WEBAUTHN_ORIGINS", raising=False)
+        rp, origins = w.resolve_relying_party(_fake_request("127.0.0.1:2020"))
+        assert rp == "127.0.0.1"
+        assert origins == ["http://127.0.0.1:2020"]
+
+    def test_explicit_env_wins_over_request(self, monkeypatch):
+        import backend.auth.webauthn_mfa as w
+
+        monkeypatch.setenv("OBSIGATE_WEBAUTHN_RP_ID", "obs.example.com")
+        monkeypatch.setenv("OBSIGATE_WEBAUTHN_ORIGINS",
+                           "https://obs.example.com, https://www.obs.example.com")
+        rp, origins = w.resolve_relying_party(_fake_request("localhost:2020"))
+        assert rp == "obs.example.com"
+        assert origins == ["https://obs.example.com",
+                           "https://www.obs.example.com"]
+
+    def test_forwarded_headers_require_trust(self, monkeypatch):
+        import backend.auth.webauthn_mfa as w
+
+        monkeypatch.delenv("OBSIGATE_WEBAUTHN_RP_ID", raising=False)
+        monkeypatch.delenv("OBSIGATE_WEBAUTHN_ORIGINS", raising=False)
+        monkeypatch.setenv("OBSIGATE_TRUST_PROXY", "false")
+        req = _fake_request("internal:8080", scheme="http",
+                            forwarded_host="obs.example.com",
+                            forwarded_proto="https")
+        assert w.resolve_relying_party(req) == ("internal", ["http://internal:8080"])
+
+        monkeypatch.setenv("OBSIGATE_TRUST_PROXY", "true")
+        assert w.resolve_relying_party(req) == ("obs.example.com",
+                                                ["https://obs.example.com"])
+
+    def test_hostname_only(self):
+        import backend.auth.webauthn_mfa as w
+
+        assert w._hostname_only("example.com:2020") == "example.com"
+        assert w._hostname_only("example.com") == "example.com"
+        assert w._hostname_only("[::1]:8080") == "::1"
+        assert w._hostname_only("127.0.0.1:2020") == "127.0.0.1"
+
+    def test_retry_after_reoptions_still_verifies(self):
+        """A re-requested options call (double-click) must not kill the
+        in-flight ceremony: "challenge was not expected challenge"."""
+        import backend.auth.webauthn_mfa as w
+
+        w._pending.clear()
+        auth = VirtualAuthenticator()
+        first = w._store_challenge("bob:register")
+        w._store_challenge("bob:register")  # second options call overwrites
+        cred = auth.make_registration({"challenge": _b64url(first)})
+        rec = w.complete_registration("bob", cred, rp_id_override="localhost",
+                                      origins_override=["http://localhost"])
+        assert rec["credential_id"] == cred["id"]
+
+    def test_register_flow_without_env_config(self, wa_client, monkeypatch):
+        """Full register + login roundtrip with no WEBAUTHN env at all: the
+        relying party derives from the request (TestClient host)."""
+        import backend.auth.webauthn_mfa as w
+
+        monkeypatch.delenv("OBSIGATE_WEBAUTHN_RP_ID", raising=False)
+        monkeypatch.delenv("OBSIGATE_WEBAUTHN_ORIGINS", raising=False)
+        w._pending.clear()
+
+        headers = _login_headers(wa_client)
+        r = wa_client.post("/api/auth/mfa/webauthn/register/options", headers=headers)
+        assert r.status_code == 200
+        options = r.json()["options"]
+        assert options["rp"]["id"] == "testserver"
+
+        auth = VirtualAuthenticator()
+        auth.RP_ID = "testserver"
+        auth.ORIGIN = "http://testserver"
+        cred = auth.make_registration(options)
+        r2 = wa_client.post("/api/auth/mfa/webauthn/register", headers=headers,
+                            json={"credential": cred, "label": "Key"})
+        assert r2.status_code == 200, r2.text
+
+        opts_r = wa_client.post("/api/auth/mfa/webauthn/options",
+                                json={"username": "testuser"})
+        assertion = auth.make_assertion(opts_r.json()["options"])
+        v = wa_client.post("/api/auth/mfa/webauthn/verify",
+                           json={"username": "testuser", "credential": assertion})
+        assert v.status_code == 200, v.text
+        assert "access_token" in v.json()