Add full monorepo: virtual-banker, backend, frontend, docs, scripts, deployment

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/check-database-connection.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+# Check database connection and credentials
+
+set -e
+
+DB_HOST="${DB_HOST:-localhost}"
+DB_PORT="${DB_PORT:-5432}"
+DB_USER="${DB_USER:-explorer}"
+DB_PASSWORD="${DB_PASSWORD:-changeme}"
+DB_NAME="${DB_NAME:-explorer}"
+
+echo "=== Database Connection Check ==="
+echo "Host: $DB_HOST:$DB_PORT"
+echo "User: $DB_USER"
+echo "Database: $DB_NAME"
+echo ""
+
+export PGPASSWORD="$DB_PASSWORD"
+
+# Test connection
+echo -n "Testing connection... "
+if psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -c "SELECT 1;" > /dev/null 2>&1; then
+    echo "✅ Connected"
+    
+    # Check if migration tables exist
+    echo -n "Checking for track schema tables... "
+    if psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -c "SELECT EXISTS(SELECT 1 FROM information_schema.tables WHERE table_name = 'addresses');" -t | grep -q "t"; then
+        echo "✅ Tables exist"
+    else
+        echo "⚠️  Tables not found - migration needed"
+    fi
+else
+    echo "❌ Connection failed"
+    echo ""
+    echo "Troubleshooting:"
+    echo "1. Check if PostgreSQL is running: systemctl status postgresql"
+    echo "2. Verify credentials in database config"
+    echo "3. Check pg_hba.conf for authentication method"
+    echo "4. Try connecting manually: psql -h $DB_HOST -U $DB_USER -d $DB_NAME"
+fi
+
+unset PGPASSWORD
+