Task 5.23: Deduplication / Merge — ContactMergeHistory model, dedup service, API routes (duplicates/merge/merge-history), DedupDialog frontend, i18n, 5 tests

frontend/src/i18n/locales/de.json

@@ -1032,5 +1032,26 @@
     "deleted": "Filter gelöscht",
     "load": "Filter laden",
     "noFilters": "Keine gespeicherten Filter"
+  },
+  "dedup": {
+    "title": "Dubletten finden und zusammenführen",
+    "findDuplicates": "Dubletten suchen",
+    "noDuplicates": "Keine Dubletten gefunden.",
+    "pairsFound": "Paare gefunden",
+    "similarity": "Ähnlichkeit",
+    "merge": "Zusammenführen",
+    "mergeSuccess": "Kontakte wurden erfolgreich zusammengeführt.",
+    "mergeFailed": "Zusammenführung fehlgeschlagen.",
+    "searchFailed": "Suche nach Dubletten fehlgeschlagen.",
+    "field": "Feld",
+    "source": "Quelle",
+    "target": "Ziel",
+    "fields": {
+      "displayName": "Anzeigename",
+      "email": "E-Mail",
+      "phone": "Telefon",
+      "city": "Stadt",
+      "postalCode": "PLZ"
+    }
   }
-}
+}

frontend/src/i18n/locales/en.json

@@ -1032,5 +1032,26 @@
     "deleted": "Filter deleted",
     "load": "Load Filter",
     "noFilters": "No saved filters"
+  },
+  "dedup": {
+    "title": "Find and Merge Duplicates",
+    "findDuplicates": "Find Duplicates",
+    "noDuplicates": "No duplicates found.",
+    "pairsFound": "pairs found",
+    "similarity": "Similarity",
+    "merge": "Merge",
+    "mergeSuccess": "Contacts merged successfully.",
+    "mergeFailed": "Merge failed.",
+    "searchFailed": "Failed to search for duplicates.",
+    "field": "Field",
+    "source": "Source",
+    "target": "Target",
+    "fields": {
+      "displayName": "Display Name",
+      "email": "Email",
+      "phone": "Phone",
+      "city": "City",
+      "postalCode": "Postal Code"
+    }
   }
-}
+}