feat(phase-6): Complete testing and deployment setup

Testing:
- Add pytest configuration (pytest.ini)
- Add test fixtures (tests/conftest.py)
- Add ContentGenerator tests (13 tests)
- Add ContentScheduler tests (16 tests)
- Add PublisherManager tests (16 tests)
- All 45 tests passing

Production Docker:
- Add docker-compose.prod.yml with healthchecks, resource limits
- Add Dockerfile.prod with multi-stage build, non-root user
- Add nginx.prod.conf with SSL, rate limiting, security headers
- Add .env.prod.example template

Maintenance Scripts:
- Add backup.sh for database and media backups
- Add restore.sh for database restoration
- Add cleanup.sh for log rotation and Docker cleanup
- Add healthcheck.sh with Telegram alerts

Documentation:
- Add DEPLOY.md with complete deployment guide

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

scripts/maintenance/backup.sh

@@ -0,0 +1,121 @@
+#!/bin/bash
+# ===========================================
+# Backup Script for Social Media Automation
+# Run daily via cron:
+# 0 2 * * * /path/to/backup.sh >> /var/log/backup.log 2>&1
+# ===========================================
+
+set -e
+
+# Configuration
+BACKUP_DIR="${BACKUP_DIR:-/root/Facebook-X-Threads-Automation/backups}"
+RETENTION_DAYS="${RETENTION_DAYS:-7}"
+TIMESTAMP=$(date +%Y%m%d_%H%M%S)
+CONTAINER_NAME="${CONTAINER_NAME:-social-automation-db}"
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+log() {
+    echo -e "[$(date '+%Y-%m-%d %H:%M:%S')] $1"
+}
+
+error() {
+    log "${RED}ERROR: $1${NC}"
+    exit 1
+}
+
+success() {
+    log "${GREEN}$1${NC}"
+}
+
+warning() {
+    log "${YELLOW}$1${NC}"
+}
+
+# Create backup directory if not exists
+mkdir -p "$BACKUP_DIR"/{database,media}
+
+log "Starting backup process..."
+
+# ===========================================
+# 1. DATABASE BACKUP
+# ===========================================
+log "Backing up PostgreSQL database..."
+
+DB_BACKUP_FILE="$BACKUP_DIR/database/db_backup_$TIMESTAMP.sql.gz"
+
+# Check if container is running
+if ! docker ps --format '{{.Names}}' | grep -q "^${CONTAINER_NAME}$"; then
+    error "Database container '$CONTAINER_NAME' is not running"
+fi
+
+# Get database credentials from container
+POSTGRES_USER=$(docker exec $CONTAINER_NAME printenv POSTGRES_USER 2>/dev/null || echo "social_user")
+POSTGRES_DB=$(docker exec $CONTAINER_NAME printenv POSTGRES_DB 2>/dev/null || echo "social_automation")
+
+# Perform backup
+if docker exec $CONTAINER_NAME pg_dump -U "$POSTGRES_USER" "$POSTGRES_DB" | gzip > "$DB_BACKUP_FILE"; then
+    DB_SIZE=$(du -h "$DB_BACKUP_FILE" | cut -f1)
+    success "Database backup completed: $DB_BACKUP_FILE ($DB_SIZE)"
+else
+    error "Database backup failed"
+fi
+
+# ===========================================
+# 2. MEDIA FILES BACKUP
+# ===========================================
+log "Backing up media files..."
+
+MEDIA_BACKUP_FILE="$BACKUP_DIR/media/media_backup_$TIMESTAMP.tar.gz"
+UPLOADS_DIR="/root/Facebook-X-Threads-Automation/uploads"
+
+if [ -d "$UPLOADS_DIR" ] && [ "$(ls -A $UPLOADS_DIR 2>/dev/null)" ]; then
+    if tar -czf "$MEDIA_BACKUP_FILE" -C "$(dirname $UPLOADS_DIR)" "$(basename $UPLOADS_DIR)"; then
+        MEDIA_SIZE=$(du -h "$MEDIA_BACKUP_FILE" | cut -f1)
+        success "Media backup completed: $MEDIA_BACKUP_FILE ($MEDIA_SIZE)"
+    else
+        warning "Media backup failed or partially completed"
+    fi
+else
+    warning "No media files to backup"
+fi
+
+# ===========================================
+# 3. CLEANUP OLD BACKUPS
+# ===========================================
+log "Cleaning up backups older than $RETENTION_DAYS days..."
+
+# Count files before cleanup
+DB_BEFORE=$(find "$BACKUP_DIR/database" -name "*.sql.gz" -type f 2>/dev/null | wc -l)
+MEDIA_BEFORE=$(find "$BACKUP_DIR/media" -name "*.tar.gz" -type f 2>/dev/null | wc -l)
+
+# Delete old files
+find "$BACKUP_DIR/database" -name "*.sql.gz" -type f -mtime +$RETENTION_DAYS -delete 2>/dev/null || true
+find "$BACKUP_DIR/media" -name "*.tar.gz" -type f -mtime +$RETENTION_DAYS -delete 2>/dev/null || true
+
+# Count files after cleanup
+DB_AFTER=$(find "$BACKUP_DIR/database" -name "*.sql.gz" -type f 2>/dev/null | wc -l)
+MEDIA_AFTER=$(find "$BACKUP_DIR/media" -name "*.tar.gz" -type f 2>/dev/null | wc -l)
+
+DB_DELETED=$((DB_BEFORE - DB_AFTER))
+MEDIA_DELETED=$((MEDIA_BEFORE - MEDIA_AFTER))
+
+if [ $DB_DELETED -gt 0 ] || [ $MEDIA_DELETED -gt 0 ]; then
+    log "Deleted $DB_DELETED database backup(s) and $MEDIA_DELETED media backup(s)"
+fi
+
+# ===========================================
+# 4. SUMMARY
+# ===========================================
+log "─────────────────────────────────────────"
+log "Backup Summary:"
+log "  Database backups: $DB_AFTER"
+log "  Media backups: $MEDIA_AFTER"
+log "  Total size: $(du -sh $BACKUP_DIR | cut -f1)"
+log "─────────────────────────────────────────"
+
+success "Backup process completed successfully!"