fix: replace hardcoded UI labels with i18n translations

- Add missing i18n keys to common.json, reports.json, dashboard.json,
  tasks.json, git.json (EN + RU)
- Replace all hardcoded labels in LLM report page with .reports.* keys
- Replace hardcoded tab labels (Linked resources, Git history) in
  DashboardDetail page
- Replace hardcoded RU text in DashboardGitManager with .git.* keys
- Remove hardcoded fallback strings from DashboardHeader, DashboardTaskHistory

frontend/src/lib/i18n/locales/en/common.json

@@ -30,5 +30,10 @@
   "per_page": "per page",
   "close_modal": "Close modal",
   "prod_context_warning": "PROD context active",
-  "choose_environment": "-- Choose an environment --"
+  "choose_environment": "-- Choose an environment --",
+  "type": "Type",
+  "status": "Status",
+  "started": "Started",
+  "finished": "Finished",
+  "duration": "Duration"
 }

frontend/src/lib/i18n/locales/en/dashboard.json

@@ -98,6 +98,13 @@
   "status_synced": "Synced",
   "status_diff": "Diff",
   "status_error": "Error",
+  "linked_resources": "Linked resources",
+  "git_history": "Git history",
+  "run_backup": "Run backup",
+  "run_llm_check": "Run LLM check",
+  "thumbnail_generating": "Thumbnail is being generated",
+  "thumbnail_failed": "Failed to load thumbnail",
+  "thumbnail_unavailable": "Thumbnail is unavailable",
   "empty": "No dashboards found",
   "setup_badge": "Initial setup",
   "setup_title": "Configure your first environment",

frontend/src/lib/i18n/locales/en/git.json

@@ -74,6 +74,14 @@
     "diverged": "Diverged",
     "error": "Error"
   },
+  "repo_changes_detected": "Configuration changes detected in Superset.",
+  "repo_synced_with_branch": "Superset configuration matches branch {branch}.",
+  "charts_label": "charts: {count}",
+  "datasets_label": "datasets: {count}",
+  "files_label": "files: {count}",
+  "sync_and_commit": "Sync & Commit",
+  "show_diff": "Show diff",
+  "init_repo_button": "Initialize Git Repository",
   "unfinished_merge": {
     "title": "Repository has an unfinished merge",
     "default_message": "An unfinished merge was detected. Resolve conflicts or abort merge manually, then retry Pull.",

frontend/src/lib/i18n/locales/en/reports.json

@@ -20,5 +20,25 @@
   "updated": "Updated",
   "summary": "Summary",
   "severity": "Severity",
-  "message": "Message"
+  "message": "Message",
+  "llm_task_id": "Task: {taskId}",
+  "llm_status": "Status",
+  "llm_dashboard_check": "Dashboard check",
+  "llm_started": "Started",
+  "llm_finished": "Finished",
+  "llm_duration": "Duration",
+  "llm_text_report": "Text Report",
+  "llm_location": "Location: {location}",
+  "llm_screenshots": "Screenshots",
+  "llm_no_screenshots": "No screenshots saved.",
+  "llm_failed_screenshot": "Failed to load screenshot",
+  "llm_logs_sent": "Logs sent to LLM ({count})",
+  "llm_no_source_logs": "No source logs were attached.",
+  "llm_task_logs": "Task execution logs ({count})",
+  "llm_no_task_logs": "No task logs available.",
+  "load_failed": "Failed to load report",
+  "llm_time": "Time",
+  "llm_level": "Level",
+  "llm_source": "Source",
+  "llm_message": "Message"
 }

frontend/src/lib/i18n/locales/en/tasks.json

@@ -69,5 +69,7 @@
   "show_diff": "Show diff",
   "diff_preview": "Diff preview",
   "no_diff_available": "Diff is not available",
-  "summary_link_unavailable": "Deep link or diff is unavailable for this task"
+  "summary_link_unavailable": "Deep link or diff is unavailable for this task",
+  "open_llm_report": "LLM report",
+  "result": "Check"
 }

frontend/src/lib/i18n/locales/ru/common.json

@@ -30,5 +30,10 @@
   "per_page": "на страницу",
   "close_modal": "Закрыть модальное окно",
   "prod_context_warning": "Активен PROD-контекст",
-  "choose_environment": "-- Выберите окружение --"
+  "choose_environment": "-- Выберите окружение --",
+  "type": "Тип",
+  "status": "Статус",
+  "started": "Запущено",
+  "finished": "Завершено",
+  "duration": "Длительность"
 }

frontend/src/lib/i18n/locales/ru/dashboard.json

@@ -97,6 +97,13 @@
   "status_synced": "Синхронизировано",
   "status_diff": "Различия",
   "status_error": "Ошибка",
+  "linked_resources": "Связанные ресурсы",
+  "git_history": "История Git",
+  "run_backup": "Запустить бэкап",
+  "run_llm_check": "LLM проверка",
+  "thumbnail_generating": "Миниатюра генерируется",
+  "thumbnail_failed": "Не удалось загрузить миниатюру",
+  "thumbnail_unavailable": "Миниатюра недоступна",
   "empty": "Дашборды не найдены",
   "setup_badge": "Стартовая настройка",
   "setup_title": "Настройте первое окружение",

frontend/src/lib/i18n/locales/ru/git.json

@@ -74,6 +74,14 @@
     "diverged": "Расхождение",
     "error": "Ошибка"
   },
+  "repo_changes_detected": "Обнаружены изменения конфигурации в Superset.",
+  "repo_synced_with_branch": "Конфигурация Superset совпадает с веткой {branch}.",
+  "charts_label": "чарты: {count}",
+  "datasets_label": "датасеты: {count}",
+  "files_label": "файлы: {count}",
+  "sync_and_commit": "Синхронизировать и зафиксировать",
+  "show_diff": "Показать diff",
+  "init_repo_button": "Инициализировать Git-репозиторий",
   "unfinished_merge": {
     "title": "Незавершённое слияние в репозитории",
     "default_message": "В репозитории найдено незавершённое слияние. Завершите или отмените его вручную и повторите Pull.",

frontend/src/lib/i18n/locales/ru/reports.json

@@ -20,5 +20,25 @@
   "updated": "Обновлено",
   "summary": "Сводка",
   "severity": "Серьезность",
-  "message": "Сообщение"
+  "message": "Сообщение",
+  "llm_task_id": "Задача: {taskId}",
+  "llm_status": "Статус",
+  "llm_dashboard_check": "Проверка дашборда",
+  "llm_started": "Запущено",
+  "llm_finished": "Завершено",
+  "llm_duration": "Длительность",
+  "llm_text_report": "Текстовый отчет",
+  "llm_location": "Локация: {location}",
+  "llm_screenshots": "Скриншоты",
+  "llm_no_screenshots": "Скриншоты не сохранены.",
+  "llm_failed_screenshot": "Не удалось загрузить скриншот",
+  "llm_logs_sent": "Логи, отправленные LLM ({count})",
+  "llm_no_source_logs": "Исходные логи не были прикреплены.",
+  "llm_task_logs": "Логи выполнения задачи ({count})",
+  "llm_no_task_logs": "Логи задачи недоступны.",
+  "load_failed": "Не удалось загрузить отчет",
+  "llm_time": "Время",
+  "llm_level": "Уровень",
+  "llm_source": "Источник",
+  "llm_message": "Сообщение"
 }

frontend/src/lib/i18n/locales/ru/tasks.json

@@ -69,5 +69,7 @@
   "show_diff": "Показать Diff",
   "diff_preview": "Diff предпросмотр",
   "no_diff_available": "Diff недоступен",
-  "summary_link_unavailable": "Ссылка или diff недоступны для этой задачи"
+  "summary_link_unavailable": "Ссылка или diff недоступны для этой задачи",
+  "open_llm_report": "LLM отчет",
+  "result": "Проверка"
 }