## Why

Operational recovery and maintenance flows are currently fragmented, manual, and risky for site admins during outages or data-quality incidents. We need a reliable admin command surface that supports safe reset/rebuild workflows without requiring ad-hoc scripts.

## What Changes

- Add a unified admin CLI command with maintenance subcommands for common operational tasks.
- Add `refetch-images` mode that processes the latest 30 news items through a queue, one-by-one, with exponential backoff to reduce provider/API rate-limit failures.
- Make image refetch context-aware using article keywords plus mood/sentiment signals to improve image relevance.
- Add archive cleanup command for archived news maintenance.
- Add cache clear command for application cache invalidation.
- Add clear-news command for wiping existing news items.
- Add rebuild-site command to re-run full rebuild workflow.
- Add regenerate-translations command for all supported languages.
- Add fetch command supporting user-provided `n` article count.
- Add guardrails and operator UX improvements (dry-run where applicable, progress output, failure summaries, and safe defaults).

## Capabilities

### New Capabilities
- `admin-maintenance-command-suite`: Defines a single admin command surface with subcommands for refetch images, archive cleanup, cache clear, news clear, rebuild, translation regeneration, and fetch-n workflows.
- `queued-image-refetch-with-backoff`: Defines queue-based image refetch behavior for latest 30 items with sequential processing and exponential backoff for rate-limit resilience.
- `context-aware-image-selection-recovery`: Defines keyword + sentiment/mood-informed image query rules and generic AI fallback behavior for refetch operations.
- `site-admin-safety-and-ergonomics`: Defines operational safeguards and usability requirements (dry-run, confirmation for destructive actions, progress reporting, and actionable error summaries).

### Modified Capabilities
- None.

## Impact

- **Backend/CLI:** new admin command entrypoints and orchestration logic for maintenance workflows.
- **News/Image Pipeline:** image re-fetch and optimization logic, retry/backoff strategy, and relevance heuristics.
- **Data Layer:** archive cleanup, cache invalidation, news-clear, translation regeneration, and controlled fetch-count ingestion operations.
- **Operations:** faster incident recovery, reduced manual intervention, and safer reset/rebuild procedures for admins.