fix(relecture): un travail vide ou oublie restait affiche et impossible a retirer

Un travail echoue ou expire cote serveur restait dans « Traductions
recentes » : sa page de relecture n'affichait rien (0 segments) avec une
erreur brute non traduite, et aucune suppression n'existait.

- serveur : nouvelle route DELETE /api/v1/translations/{job_id} —
  retire le travail de la memoire et de Redis, supprime ses segments de
  relecture ; idempotente (200 meme si le serveur avait deja oublie le
  travail) ; refuse les travaux en cours (annuler d'abord) ; proprietaire
  seul (404 pour le travail d'autrui, sans reveler son existence)
- interface : bouton corbeille sur chaque ligne des traductions recentes
  (deux clics pour confirmer) qui nettoie la liste locale ET le serveur ;
  l'historique serveur ne liste plus les travaux non termines
- page de relecture : message d'erreur traduit (fini le message brut) et
  etat « rien a relire » explicite avec explication
- libelles ajoutes dans les 13 langues de l'interface
- 5 tests backend nouveaux (tests/test_delete_translation_history.py)

core/redis.py

@@ -132,3 +132,21 @@ async def get_job_status_async(job_id: str) -> dict | None:
     except Exception as e:
         logger.warning("Redis get_job_status_async failed for %s: %s", job_id, e)
         return None
+
+
+async def delete_job_status_async(job_id: str) -> bool:
+    """Remove a job's status key from Redis (user deleted it from history).
+
+    Best-effort like the other job-status helpers: never raises, returns
+    True when the key was deleted, False when Redis is unavailable or the
+    key did not exist.
+    """
+    client = get_async_redis()
+    if not client:
+        return False
+    try:
+        key = f"{JOB_STATUS_KEY_PREFIX}:{job_id}"
+        return bool(await client.delete(key))
+    except Exception as e:
+        logger.warning("Redis delete_job_status_async failed for %s: %s", job_id, e)
+        return False

frontend/src/app/dashboard/reviews/[jobId]/page.tsx

@@ -106,7 +106,13 @@ export default function ReviewPage() {
       setSegments(res.data.segments);
       setFileName(res.data.file_name);
     } catch (err) {
-      setLoadError(err instanceof Error ? err.message : t('reviews.error.load'));
+      setLoadError(
+        friendlyReviewError(
+          err instanceof Error ? err.message : undefined,
+          t,
+          'reviews.error.load'
+        ) ?? t('reviews.error.load')
+      );
     } finally {
       setIsLoading(false);
     }
@@ -406,6 +412,15 @@ export default function ReviewPage() {
         <div className="flex items-center justify-center py-16">
           <Loader2 className="size-6 animate-spin text-muted-foreground" />
         </div>
+      ) : segments.length === 0 && !loadError ? (
+        <div className="rounded-xl border border-black/10 dark:border-white/10 bg-white dark:bg-[#141414] px-6 py-14 text-center shadow-sm">
+          <p className="text-sm font-semibold text-brand-dark dark:text-white">
+            {t('reviews.empty.title')}
+          </p>
+          <p className="mx-auto mt-2 max-w-md text-xs leading-relaxed text-brand-dark/60 dark:text-white/60">
+            {t('reviews.empty.desc')}
+          </p>
+        </div>
       ) : (
         <div className="overflow-hidden rounded-xl border border-black/10 dark:border-white/10 bg-white dark:bg-[#141414] shadow-sm">
           <table className="w-full text-sm">

frontend/src/app/dashboard/translate/page.tsx

@@ -8,11 +8,14 @@ import {
   Zap, CheckCircle2,
   Search, Languages, Wrench, Activity,
   Download, AlertTriangle, FileType,
-  Image as ImageIcon,
+  Image as ImageIcon, Trash2,
 } from 'lucide-react';
 import { useFileUpload } from './useFileUpload';
 import { useTranslationConfig } from './useTranslationConfig';
-import { useTranslationSubmit, getRecentJobs, fetchServerHistory, pushRecentJob, type RecentJob } from './useTranslationSubmit';
+import {
+  useTranslationSubmit, getRecentJobs, fetchServerHistory, pushRecentJob,
+  removeRecentJob, deleteServerJob, type RecentJob,
+} from './useTranslationSubmit';
 import { runTranslationJob } from './translationRunner';
 import type { BatchItem } from './types';
 import LanguageSelector from './LanguageSelector';
@@ -83,6 +86,8 @@ export default function TranslatePage() {
   const batchJobRef = useRef<string | null>(null);
   const [elapsed, setElapsed] = useState(0);
   const [recentJobs, setRecentJobs] = useState<RecentJob[]>([]);
+  // Job whose delete button is armed (first click) — cleared after 4s or on delete.
+  const [armedRemoveId, setArmedRemoveId] = useState<string | null>(null);
   const timerRef = useRef<ReturnType<typeof setInterval> | null>(null);
 
   const isPdf = upload.file?.name.toLowerCase().endsWith('.pdf') ?? false;
@@ -238,6 +243,20 @@ export default function TranslatePage() {
   };
 
   const handleNewTranslation = () => { batchAbortRef.current = true; setBatch(null); submit.reset(); upload.removeFile(); setElapsed(0); setRecentJobs(getRecentJobs()); };
+
+  /** Two-step delete (arm, then confirm): removes the entry locally and on the server. */
+  const handleRemoveJob = (jobId: string) => {
+    if (armedRemoveId !== jobId) {
+      setArmedRemoveId(jobId);
+      setTimeout(() => setArmedRemoveId((cur) => (cur === jobId ? null : cur)), 4000);
+      return;
+    }
+    setArmedRemoveId(null);
+    removeRecentJob(jobId);
+    setRecentJobs((jobs) => jobs.filter((j) => j.jobId !== jobId));
+    // Server-side cleanup is best-effort: a 404 just means it already forgot the job.
+    void deleteServerJob(jobId);
+  };
   const handleDownload = async (jobId: string = submit.jobId ?? '') => {
     if (!jobId) return;
     const token = localStorage.getItem('token');
@@ -543,7 +562,7 @@ export default function TranslatePage() {
                           onClick={() => handleDownload(job.jobId)}
                           className="rounded-lg px-3 py-1.5 text-[10px] font-bold uppercase tracking-wider text-brand-dark/60 dark:text-white/60 border border-black/10 dark:border-white/10 hover:bg-brand-muted/50 transition-colors"
                         >
-                          <Download size={11} className="inline" />
+                          <Download size={11} />
                         </button>
                         <Link
                           href={`/dashboard/reviews/${job.jobId}`}
@@ -551,6 +570,20 @@ export default function TranslatePage() {
                         >
                           {t('translate.recent.review')}
                         </Link>
+                        <button
+                          type="button"
+                          onClick={() => handleRemoveJob(job.jobId)}
+                          aria-label={t('translate.recent.remove')}
+                          title={armedRemoveId === job.jobId ? t('translate.recent.removeConfirm') : t('translate.recent.remove')}
+                          className={cn(
+                            'rounded-lg px-2.5 py-1.5 text-[10px] font-bold uppercase tracking-wider border transition-colors',
+                            armedRemoveId === job.jobId
+                              ? 'border-red-400/60 text-red-500 bg-red-500/10'
+                              : 'text-brand-dark/40 dark:text-white/40 border-transparent hover:text-red-500 hover:border-red-300/40'
+                          )}
+                        >
+                          <Trash2 size={11} />
+                        </button>
                       </span>
                     </li>
                   ))}

frontend/src/app/dashboard/translate/useTranslationSubmit.ts

@@ -22,7 +22,7 @@ interface StoredJob { jobId: string; fileName: string | null; savedAt: number }
 
 export interface RecentJob { jobId: string; fileName: string; completedAt: number }
 
-/** Server history (last jobs, newest first) — empty when offline/unauthenticated. */
+/** Server history (last completed jobs, newest first) — empty when offline/unauthenticated. */
 export async function fetchServerHistory(perPage = 6): Promise<RecentJob[]> {
   if (typeof window === 'undefined') return [];
   const token = localStorage.getItem('token');
@@ -33,14 +33,16 @@ export async function fetchServerHistory(perPage = 6): Promise<RecentJob[]> {
     });
     if (!res.ok) return [];
     const json = await res.json();
-    return (json.data ?? []).map((j: {
+    return (json.data ?? [])
-      id: string; file_name?: string | null;
+      .filter((j: { status?: string | null }) => (j.status ?? 'completed') === 'completed')
-      completed_at?: string | null; created_at?: string | null;
+      .map((j: {
-    }) => ({
+        id: string; file_name?: string | null; status?: string | null;
-      jobId: j.id,
+        completed_at?: string | null; created_at?: string | null;
-      fileName: j.file_name ?? '',
+      }) => ({
-      completedAt: Date.parse(j.completed_at ?? j.created_at ?? '') || Date.now(),
+        jobId: j.id,
-    }));
+        fileName: j.file_name ?? '',
+        completedAt: Date.parse(j.completed_at ?? j.created_at ?? '') || Date.now(),
+      }));
   } catch {
     return [];
   }
@@ -56,6 +58,31 @@ export function getRecentJobs(): RecentJob[] {
   }
 }
 
+/** Remove a job from this browser's local history. */
+export function removeRecentJob(jobId: string) {
+  try {
+    const list = getRecentJobs().filter(j => j.jobId !== jobId);
+    localStorage.setItem(RECENT_JOBS_KEY, JSON.stringify(list));
+  } catch { /* ignore */ }
+}
+
+/**
+ * Delete a job on the server (history entry + review segments).
+ * Silent by design: a 404 means the server already forgot the job, which
+ * is exactly the state the caller wants.
+ */
+export async function deleteServerJob(jobId: string): Promise<void> {
+  if (typeof window === 'undefined') return;
+  const token = localStorage.getItem('token');
+  if (!token) return;
+  try {
+    await fetch(`${API_BASE}/api/v1/translations/${jobId}`, {
+      method: 'DELETE',
+      headers: { Authorization: `Bearer ${token}` },
+    });
+  } catch { /* offline — the local entry is removed regardless */ }
+}
+
 function persistActiveJob(job: StoredJob | null) {
   try {
     if (!job) localStorage.removeItem(ACTIVE_JOB_KEY);

frontend/src/lib/i18n/messages/ar/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "لا توجد أجزاء لمراجعتها في هذه المهمة",
+  "reviews.empty.desc": "لا تحتوي هذه الترجمة على أجزاء محفوظة: إما أنها فشلت قبل ترجمة النص، أو لم يعد الخادم يحتفظ بها. يمكنك إزالتها من قائمة الترجمات الأخيرة."
 }

frontend/src/lib/i18n/messages/de/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "Für diesen Auftrag gibt es nichts zu prüfen",
+  "reviews.empty.desc": "Diese Übersetzung enthält keine gespeicherten Segmente: Entweder ist sie vor der Textübersetzung fehlgeschlagen, oder der Server bewahrt sie nicht mehr auf. Sie können sie aus der Liste der letzten Übersetzungen entfernen."
 }

frontend/src/lib/i18n/messages/en/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "Nothing to review for this job",
+  "reviews.empty.desc": "This translation has no stored segments: either it failed before any text was translated, or it is no longer retained by the server. You can remove it from your recent translations list."
 }

frontend/src/lib/i18n/messages/en/translate.json

@@ -96,6 +96,8 @@
   "translate.downloadFailed": "The download failed. Please try again.",
   "translate.recent.title": "Recent translations",
   "translate.recent.review": "Review",
+  "translate.recent.remove": "Remove from history",
+  "translate.recent.removeConfirm": "Click again to confirm",
   "translate.upload.ariaDropzone": "Upload a document: drag and drop, or press Enter to browse files",
   "translate.cancelAction": "Cancel translation",
   "translate.cancelledTitle": "Translation cancelled",

frontend/src/lib/i18n/messages/es/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "Nada que revisar en este trabajo",
+  "reviews.empty.desc": "Esta traducción no tiene segmentos guardados: o falló antes de traducir el texto, o el servidor ya no la conserva. Puede quitarla de la lista de traducciones recientes."
 }

frontend/src/lib/i18n/messages/fa/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "بخشی برای بازبینی در این کار وجود ندارد",
+  "reviews.empty.desc": "این ترجمه بخش ذخیره‌شده‌ای ندارد: یا پیش از ترجمهٔ متن ناموفق بوده، یا سرور دیگر آن را نگه نمی‌دارد. می‌توانید آن را از فهرست ترجمه‌های اخیر حذف کنید."
 }

frontend/src/lib/i18n/messages/fr/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Rechercher dans les segments...",
   "reviews.shortcutHint": "Ctrl + Entrée pour enregistrer",
   "reviews.approvingProgress": "Approbation ({current}/{total})…",
-  "reviews.noMatchingSegments": "Aucun segment ne correspond à votre filtre."
+  "reviews.noMatchingSegments": "Aucun segment ne correspond à votre filtre.",
+  "reviews.empty.title": "Rien à relire pour ce travail",
+  "reviews.empty.desc": "Cette traduction n'a aucun segment enregistré : soit elle a échoué avant la traduction du texte, soit elle n'est plus conservée par le serveur. Vous pouvez la retirer de la liste des traductions récentes."
 }

frontend/src/lib/i18n/messages/fr/translate.json

@@ -96,6 +96,8 @@
   "translate.downloadFailed": "Le téléchargement a échoué. Réessayez.",
   "translate.recent.title": "Traductions récentes",
   "translate.recent.review": "Relire",
+  "translate.recent.remove": "Retirer de l'historique",
+  "translate.recent.removeConfirm": "Cliquez encore pour confirmer",
   "translate.upload.ariaDropzone": "Déposer un document : glisser-déposer ou appuyer sur Entrée pour parcourir",
   "translate.cancelAction": "Annuler la traduction",
   "translate.cancelledTitle": "Traduction annulée",

frontend/src/lib/i18n/messages/it/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "Niente da rivedere per questo lavoro",
+  "reviews.empty.desc": "Questa traduzione non ha segmenti salvati: o è fallita prima di tradurre il testo, o il server non la conserva più. Puoi rimuoverla dall'elenco delle traduzioni recenti."
 }

frontend/src/lib/i18n/messages/ja/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "このジョブに校正するセグメントはありません",
+  "reviews.empty.desc": "この翻訳には保存されたセグメントがありません。テキストの翻訳前に失敗したか、サーバーに保持されていません。最近の翻訳リストから削除できます。"
 }

frontend/src/lib/i18n/messages/ko/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "이 작업에 검토할 세그먼트가 없습니다",
+  "reviews.empty.desc": "이 번역에는 저장된 세그먼트가 없습니다. 텍스트 번역 전에 실패했거나 서버에 더 이상 보관되지 않습니다. 최근 번역 목록에서 제거할 수 있습니다."
 }

frontend/src/lib/i18n/messages/nl/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "Niets te controleren voor deze opdracht",
+  "reviews.empty.desc": "Deze vertaling heeft geen opgeslagen segmenten: of hij mislukte voordat er tekst werd vertaald, of de server bewaart hem niet meer. U kunt hem verwijderen uit de lijst met recente vertalingen."
 }

frontend/src/lib/i18n/messages/pt/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "Nada a revisar neste trabalho",
+  "reviews.empty.desc": "Esta tradução não tem segmentos armazenados: ou falhou antes de qualquer texto ser traduzido, ou o servidor já não a conserva. Pode removê-la da lista de traduções recentes."
 }

frontend/src/lib/i18n/messages/ru/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "Для этого задания нет сегментов для проверки",
+  "reviews.empty.desc": "У этого перевода нет сохранённых сегментов: либо он завершился ошибкой до перевода текста, либо сервер его больше не хранит. Вы можете удалить его из списка недавних переводов."
 }

frontend/src/lib/i18n/messages/zh/reviews.json

@@ -47,5 +47,7 @@
   "reviews.searchPlaceholder": "Search in segments...",
   "reviews.shortcutHint": "Ctrl + Enter to save",
   "reviews.approvingProgress": "Approving ({current}/{total})…",
-  "reviews.noMatchingSegments": "No segments match your filter."
+  "reviews.noMatchingSegments": "No segments match your filter.",
+  "reviews.empty.title": "此任务没有可校对的段落",
+  "reviews.empty.desc": "此翻译没有已存储的段落：可能是在翻译文本之前失败，或服务器已不再保留。您可以将其从最近翻译列表中移除。"
 }

routes/translate_routes.py

@@ -71,7 +71,7 @@ from utils.file_handler import FileHandler
 from middleware.metrics import record_translation, record_file_size
 from services.progress_tracker import ProgressTracker
 from services.storage_tracker import storage_tracker
-from core.redis import set_job_status_async, get_job_status_async
+from core.redis import set_job_status_async, get_job_status_async, delete_job_status_async
 from services.glossary_service import get_glossary_terms, validate_glossary_access, build_full_prompt
 from services.prompt_service import get_prompt_content, validate_prompt_access
 from utils.exceptions import GlossaryNotFoundError, PromptNotFoundError
@@ -2257,6 +2257,92 @@ async def cancel_translation(
     return {"data": {"id": job_id, "status": "cancelled"}, "meta": {}}
 
 
+@router_v1.delete(
+    "/translations/{job_id}",
+    responses={
+        200: {"description": "Job removed from the user's history (idempotent)"},
+        401: {"description": "Authentication required"},
+        404: {"description": "Job belongs to another user"},
+        409: {"description": "Job is queued or processing — cancel it first"},
+    },
+)
+async def delete_translation(
+    job_id: str,
+    current_user: Optional[Any] = Depends(get_authenticated_user),
+):
+    """
+    Remove a translation job from the user's history.
+
+    Deletes the in-memory job record, its Redis status key and its stored
+    review segments. Idempotent: a job the server has already forgotten
+    (retention expiry, restart) still returns 200 so the client can clean
+    its own list. Only the owner may delete — the share token does not
+    grant deletion rights. Files on disk are left to the TTL cleanup.
+    """
+    if current_user is None:
+        return JSONResponse(
+            status_code=401,
+            content={"error": "AUTH_REQUIRED", "message": "Authentication required."},
+        )
+    user_id = str(getattr(current_user, "id", ""))
+
+    job = _translation_jobs.get(job_id)
+    if not job:
+        job = await get_job_status_async(job_id)
+
+    if job:
+        # Do not reveal whether someone else's job exists: same 404 body.
+        if str(job.get("user_id", "")) != user_id:
+            return JSONResponse(
+                status_code=404,
+                content={
+                    "error": "NOT_FOUND",
+                    "message": "Translation job not found.",
+                    "details": {"job_id": job_id},
+                },
+            )
+        if job.get("status") in ("queued", "processing"):
+            return JSONResponse(
+                status_code=409,
+                content={
+                    "error": "JOB_IN_PROGRESS",
+                    "message": "Cancel the job before deleting it.",
+                    "details": {"job_id": job_id, "status": job.get("status")},
+                },
+            )
+
+    _translation_jobs.pop(job_id, None)
+    await delete_job_status_async(job_id)
+
+    def _delete_segments():
+        from database.connection import get_sync_session
+        from database.models import TranslationSegment
+
+        with get_sync_session() as session:
+            deleted = (
+                session.query(TranslationSegment)
+                .filter(TranslationSegment.job_id == job_id)
+                .delete()
+            )
+            session.commit()
+            return deleted
+
+    segments_deleted = 0
+    try:
+        segments_deleted = await asyncio.to_thread(_delete_segments)
+    except Exception as seg_err:
+        logger.warning(f"Job {job_id}: segment deletion failed: {seg_err}")
+
+    logger.info(
+        f"Job {job_id}: deleted from history by user "
+        f"(segments removed: {segments_deleted})"
+    )
+    return {
+        "data": {"id": job_id, "deleted": True, "segments_removed": segments_deleted},
+        "meta": {},
+    }
+
+
 @router_v1.get("/translate/health")
 async def translate_health():
     """Health check for translation endpoint."""

tests/test_delete_translation_history.py

@@ -0,0 +1,144 @@
+"""DELETE /api/v1/translations/{job_id} — retrait d'un travail de l'historique.
+
+Contexte : un travail échoué ou oublié par le serveur (rétention 24 h en
+mémoire) restait affiché dans « Traductions récentes » sans aucun moyen de
+le retirer, et sa page de relecture était vide. La route supprime le
+travail de la mémoire, sa clé Redis et ses segments de relecture.
+"""
+
+import pytest
+from fastapi.testclient import TestClient
+from unittest.mock import patch
+
+from main import app
+from routes.translate_routes import get_authenticated_user, _translation_jobs
+
+
+@pytest.fixture()
+def client(monkeypatch):
+    from middleware.rate_limiting import RateLimitMiddleware
+
+    async def _dispatch(self, request, call_next):
+        return await call_next(request)
+
+    monkeypatch.setattr(RateLimitMiddleware, "dispatch", _dispatch)
+    return TestClient(app)
+
+
+class MockUser:
+    def __init__(self, user_id="user_123"):
+        self.id = user_id
+        self.plan = "free"
+        self.docs_translated_this_month = 0
+        self.pages_translated_this_month = 0
+        self.extra_credits = 0
+
+
+def _make_job(job_id="tr_del1", user_id="user_123", status="completed"):
+    return {
+        "id": job_id,
+        "user_id": user_id,
+        "status": status,
+        "file_name": "doc.docx",
+        "created_at": "2026-09-01T10:00:00",
+        "progress_percent": 100,
+    }
+
+
+@pytest.fixture(autouse=True)
+def _clean_jobs():
+    saved = dict(_translation_jobs)
+    _translation_jobs.clear()
+    yield
+    _translation_jobs.clear()
+    _translation_jobs.update(saved)
+
+
+def _seed_segments(job_id, user_id="user_123", count=2):
+    from database.models import Base, TranslationSegment
+    from database.connection import sync_engine, get_sync_session
+
+    Base.metadata.create_all(bind=sync_engine)
+    with get_sync_session() as session:
+        for i in range(count):
+            session.add(
+                TranslationSegment(
+                    job_id=job_id,
+                    user_id=user_id,
+                    segment_index=i,
+                    source_text=f"Hello {i}",
+                    translated_text=f"Bonjour {i}",
+                    status="pending",
+                )
+            )
+        session.commit()
+
+
+class TestDeleteTranslationHistory:
+    def test_owner_deletes_completed_job(self, client):
+        app.dependency_overrides[get_authenticated_user] = _async_user(MockUser())
+        _translation_jobs["tr_del1"] = _make_job()
+        _seed_segments("tr_del1")
+
+        res = client.delete("/api/v1/translations/tr_del1")
+        assert res.status_code == 200
+        body = res.json()["data"]
+        assert body["deleted"] is True
+        assert body["segments_removed"] == 2
+        assert "tr_del1" not in _translation_jobs
+
+        from database.connection import get_sync_session
+        from database.models import TranslationSegment
+
+        with get_sync_session() as session:
+            remaining = (
+                session.query(TranslationSegment)
+                .filter(TranslationSegment.job_id == "tr_del1")
+                .count()
+            )
+        assert remaining == 0
+        app.dependency_overrides.clear()
+
+    def test_delete_is_idempotent_when_job_already_gone(self, client):
+        app.dependency_overrides[get_authenticated_user] = _async_user(MockUser())
+        # Le serveur a oublié le travail (rétention expirée / redémarrage) :
+        # le client veut quand même nettoyer sa liste locale.
+        res = client.delete("/api/v1/translations/tr_unknown")
+        assert res.status_code == 200
+        assert res.json()["data"]["deleted"] is True
+        app.dependency_overrides.clear()
+
+    def test_other_users_job_is_404(self, client):
+        app.dependency_overrides[get_authenticated_user] = _async_user(MockUser())
+        _translation_jobs["tr_someone"] = _make_job("tr_someone", user_id="user_999")
+        res = client.delete("/api/v1/translations/tr_someone")
+        assert res.status_code == 404
+        # Le travail reste intact
+        assert "tr_someone" in _translation_jobs
+        app.dependency_overrides.clear()
+
+    def test_running_job_requires_cancel_first(self, client):
+        app.dependency_overrides[get_authenticated_user] = _async_user(MockUser())
+        _translation_jobs["tr_run"] = _make_job("tr_run", status="processing")
+        res = client.delete("/api/v1/translations/tr_run")
+        assert res.status_code == 409
+        assert res.json()["error"] == "JOB_IN_PROGRESS"
+        assert "tr_run" in _translation_jobs
+        app.dependency_overrides.clear()
+
+    def test_unauthenticated_is_401(self, client):
+        async def _anonymous():
+            return None
+
+        app.dependency_overrides[get_authenticated_user] = _anonymous
+        _translation_jobs["tr_anon"] = _make_job()
+        res = client.delete("/api/v1/translations/tr_anon")
+        assert res.status_code == 401
+        app.dependency_overrides.clear()
+
+
+def _async_user(user):
+    async def _auth():
+        return user
+
+    return _auth