docs: Add database environment clarification to sync script

- Document that parentflowdev is development database
- Document that parentflow is production database
- Document that parentflowadmin is shared between environments
- Clarify server locations and usage

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

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

scripts/sync-database-schema.sh

@@ -6,6 +6,25 @@
 # This script compares the development and production databases and automatically
 # synchronizes the production database to match the development schema.
 #
+# DATABASE ENVIRONMENTS:
+# ----------------------
+# Development Environment (this server: /root/maternal-app):
+#   - Uses database: parentflowdev
+#   - Location: 10.0.0.207
+#   - This is where we develop and test changes
+#
+# Production Environment (server: 10.0.0.240 /root/parentflowapp-prod):
+#   - Uses database: parentflow
+#   - Location: 10.0.0.207 (same database server, different database)
+#   - This is the live application serving users
+#
+# Admin Database (shared between environments):
+#   - Uses database: parentflowadmin
+#   - Location: 10.0.0.207
+#   - Shared admin panel database for both dev and production
+#
+# This script syncs: parentflowdev (dev) → parentflow (production)
+#
 # Features:
 # - Creates missing tables in production
 # - Adds missing columns to existing tables
@@ -36,8 +55,9 @@ NC='\033[0m' # No Color
 DB_HOST="10.0.0.207"
 DB_USER="postgres"
 DB_PASSWORD="a3ppq"
-DEV_DB="parentflowdev"
-PROD_DB="parentflow"
+DEV_DB="parentflowdev"      # Development database (used by /root/maternal-app)
+PROD_DB="parentflow"        # Production database (used by 10.0.0.240:/root/parentflowapp-prod)
+ADMIN_DB="parentflowadmin"  # Shared admin database (both environments)
 
 # Backup configuration
 BACKUP_DIR="/root/maternal-app/backups/db-schema-sync"