feat: Add MongoDB backups repository with comprehensive documentation

Backups included:
- mongodb-20251022-093651.tar.gz (233 MB, 24 databases)
- backup_20250928_214747.tar.gz (233 MB)

Features:
- Complete MongoDB dumps from site11_mongodb container
- Compressed tar.gz format for efficient storage
- Comprehensive README with restore procedures
- Backup verification and automation guides
- Emergency recovery documentation

Database coverage:
- ai_writer_db (461 MB) - Main content database
- news_api_db - News API and outlets
- Service databases (AI, Apple, Crypto, Google, Samsung, LG, WSJ, Musk, Korea)
- Artist databases (NCT, TWICE, ENHYPEN, IVE, Stray Kids, BLACKPINK)
- OAuth and pipeline databases

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.gitignore

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+# Ignore uncompressed backup directories
+mongodb-*/
+20*/
+
+# Keep compressed backups only
+# *.tar.gz files will be tracked

README.md

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+# Site11 Backups
+
+MongoDB database backups for the Site11 project.
+
+## Overview
+
+This repository contains automated backups of all MongoDB databases used in the Site11 platform, including:
+- News API database
+- AI Writer database
+- Service-specific databases (AI, Apple, Crypto, Google, Samsung, etc.)
+- Artist databases (NCT, TWICE, ENHYPEN, IVE, Stray Kids, BLACKPINK)
+- OAuth and authentication databases
+
+## Backup Schedule
+
+Backups are created regularly and stored in compressed tar.gz format:
+- **Format**: `mongodb-YYYYMMDD-HHMMSS.tar.gz`
+- **Compression**: gzip
+- **Structure**: Full dump using `mongodump`
+
+## Backup Contents
+
+Each backup includes:
+- All databases and collections
+- Indexes
+- User data
+- Configuration data
+
+### Latest Backup
+
+- **Date**: 2025-10-22 09:36:51
+- **File**: `mongodb-20251022-093651.tar.gz`
+- **Size**: 233 MB (compressed), 768 MB (uncompressed)
+- **Databases**: 24 databases
+
+## Restoring from Backup
+
+### Extract the Backup
+
+```bash
+# Extract the tar.gz file
+tar -xzf mongodb-YYYYMMDD-HHMMSS.tar.gz
+
+# This will create a 'backup' directory with all database dumps
+cd mongodb-YYYYMMDD-HHMMSS/backup
+```
+
+### Restore All Databases
+
+```bash
+# Restore all databases
+mongorestore --host localhost --port 27017 backup/
+
+# Or restore to Docker container
+docker exec -i site11_mongodb mongorestore --archive < backup.archive
+```
+
+### Restore Specific Database
+
+```bash
+# Restore only a specific database
+mongorestore --host localhost --port 27017 --db ai_writer_db backup/ai_writer_db
+
+# For Docker
+docker cp backup/ai_writer_db site11_mongodb:/tmp/
+docker exec site11_mongodb mongorestore --db ai_writer_db /tmp/ai_writer_db
+```
+
+### Restore with Drop (Replace existing data)
+
+```bash
+# WARNING: This will drop existing collections before restoring
+mongorestore --host localhost --port 27017 --drop backup/
+```
+
+## Backup Details
+
+### Included Databases
+
+| Database | Size | Description |
+|----------|------|-------------|
+| ai_writer_db | 461 MB | Main AI content generation database |
+| news_api_db | ~7 MB | News API data and outlets |
+| ai_service | ~0.18 MB | AI service configuration |
+| apple_service | ~0.18 MB | Apple news service |
+| crypto_service | ~0.18 MB | Cryptocurrency news |
+| google_service | ~0.18 MB | Google news service |
+| samsung_service | ~0.18 MB | Samsung news service |
+| lg_service | ~0.18 MB | LG news service |
+| wsj_service | ~0.18 MB | Wall Street Journal service |
+| musk_service | ~0.18 MB | Elon Musk news service |
+| korea_service | ~0.18 MB | Korea news service |
+| artist_*_service | ~0.18 MB each | K-pop artist news services |
+| oauth_db | ~0.05 MB | Authentication and OAuth data |
+| pipeline_db | ~0.32 MB | Data pipeline configuration |
+| k_culture_db | ~0.05 MB | Korean culture content |
+| files_db | ~0.03 MB | File storage metadata |
+
+## Creating a New Backup
+
+### Using Docker
+
+```bash
+# Set backup directory
+BACKUP_DIR="backups/mongodb-$(date +%Y%m%d-%H%M%S)"
+mkdir -p "$BACKUP_DIR"
+
+# Create backup
+docker exec site11_mongodb mongodump --out /tmp/backup --quiet
+docker cp site11_mongodb:/tmp/backup "$BACKUP_DIR/"
+docker exec site11_mongodb rm -rf /tmp/backup
+
+# Compress
+cd backups
+tar -czf "$(basename "$BACKUP_DIR").tar.gz" "$(basename "$BACKUP_DIR")"
+
+# Optional: Remove uncompressed backup
+rm -rf "$(basename "$BACKUP_DIR")"
+```
+
+### Using MongoDB Tools
+
+```bash
+# Direct backup
+mongodump --host localhost --port 27017 --out backup/$(date +%Y%m%d-%H%M%S)
+
+# Compress
+tar -czf backup-$(date +%Y%m%d-%H%M%S).tar.gz backup/
+```
+
+## Backup Verification
+
+After creating a backup, verify its integrity:
+
+```bash
+# Check tar.gz file integrity
+tar -tzf mongodb-YYYYMMDD-HHMMSS.tar.gz > /dev/null && echo "OK" || echo "CORRUPTED"
+
+# Check file size
+ls -lh mongodb-YYYYMMDD-HHMMSS.tar.gz
+
+# List databases in backup
+tar -xzf mongodb-YYYYMMDD-HHMMSS.tar.gz -O backup/ | head -20
+```
+
+## Storage Recommendations
+
+- Keep at least **3 recent backups** (daily)
+- Keep **weekly backups** for the last month
+- Keep **monthly backups** for the last year
+- Store critical backups in **multiple locations**:
+  - Local storage
+  - Git repository (this repo)
+  - Cloud storage (S3, GCS, etc.)
+  - External drive
+
+## Security Notes
+
+- Backups contain **sensitive data** including user information
+- Ensure proper **access controls** on this repository
+- Consider **encryption** for production backups
+- Rotate backups regularly and **delete old backups** securely
+
+## Automation
+
+To automate backups, create a cron job:
+
+```bash
+# Edit crontab
+crontab -e
+
+# Add daily backup at 2 AM
+0 2 * * * cd /path/to/site11 && ./scripts/backup-mongodb.sh
+```
+
+## Emergency Recovery
+
+In case of data loss:
+
+1. **Stop the application** to prevent data corruption
+2. **Identify the most recent valid backup**
+3. **Extract and verify** the backup
+4. **Restore the database** using mongorestore
+5. **Verify data integrity** after restoration
+6. **Restart the application**
+
+## Support
+
+For backup-related issues:
+1. Check MongoDB logs
+2. Verify disk space
+3. Test restore on a separate instance first
+4. Contact the development team if needed
+
+## License
+
+Proprietary - All rights reserved