feat(models): show Civitai model/version ids in model modal, always-on hash/id search

- Model modal hash footnote now shows Civitai model id and version id
  (right-aligned, quick-copy buttons); hidden for non-Civitai models
- Hash/id exact search (sha256/autov2/autov3/civitai ids) is now always
  on: the search-options "hash" toggle is removed and the search_hash
  query param is silently ignored for API compatibility
- Footnote render condition relaxed so autov3-only and id-only models
  still show the line
- i18n: 4 new keys translated in all 9 locales; filters.hash key removed

locales/ru.json

@@ -251,7 +251,6 @@
                 "modelname": "Название модели",
                 "tags": "Теги",
                 "creator": "Автор",
-                "hash": "Хэш",
                 "title": "Название рецепта",
                 "loraName": "Имя файла LoRA",
                 "loraModel": "Название модели LoRA",
@@ -1837,6 +1836,8 @@
                 "sendToWorkflow": "Отправить в ComfyUI",
                 "sendToWorkflowText": "Отправить в ComfyUI",
                 "copyHash": "Копировать хеш",
+                "copyCivitaiId": "Копировать ID Civitai",
+                "civitaiIdCopied": "ID Civitai скопирован в буфер обмена",
                 "deleteModelWithShortcut": "Удалить модель (Del)"
             },
             "openFileLocation": {
@@ -1855,6 +1856,8 @@
                 "baseModel": "Базовая модель",
                 "size": "Размер",
                 "hashes": "Хэши",
+                "civitaiModelId": "ID модели",
+                "civitaiVersionId": "ID версии",
                 "unknown": "Неизвестно",
                 "usageTips": "Советы по использованию",
                 "additionalNotes": "Дополнительные заметки",