feat: homelab deployment - NPM + IONOS DNS + monitoring + NAS backup

- Restructured docker-compose for Nginx Proxy Manager (no custom nginx)
- Added domain wordly.art configuration
- Added Prometheus + Grafana monitoring stack with pre-configured dashboards
- Added PostgreSQL backup script to NAS (daily/weekly/monthly rotation)
- Added alert rules for backend, system, and Docker metrics
- Updated deployment guide for NPM + IONOS DNS homelab setup
- Added marketing plan document
- PDF translator and watermark support
- Enhanced middleware, routes, and translator modules

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docker/backend/entrypoint.sh

@@ -6,19 +6,28 @@ echo "🚀 Starting Document Translation API..."
 # Wait for database to be ready (if DATABASE_URL is set)
 if [ -n "$DATABASE_URL" ]; then
     echo "⏳ Waiting for database to be ready..."
-    
-    # Extract host and port from DATABASE_URL
-    # postgresql://user:pass@host:port/db
-    DB_HOST=$(echo $DATABASE_URL | sed -e 's/.*@\([^:]*\):.*/\1/')
-    DB_PORT=$(echo $DATABASE_URL | sed -e 's/.*:\([0-9]*\)\/.*/\1/')
-    
+
+    # Extract host and port from DATABASE_URL (handles postgresql+asyncpg:// and postgresql://)
+    DB_HOST=$(python -c "
+import re
+m = re.search(r'@([^:/]+)', '$DATABASE_URL')
+print(m.group(1) if m else 'postgres')
+")
+    DB_PORT=$(python -c "
+import re
+m = re.search(r'@[^:]+:(\d+)', '$DATABASE_URL')
+print(m.group(1) if m else '5432')
+")
+
+    echo "   Connecting to ${DB_HOST}:${DB_PORT}..."
+
     # Wait up to 30 seconds for database
-    for i in {1..30}; do
+    for i in $(seq 1 30); do
         if python -c "
 import socket
 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 try:
-    s.connect(('$DB_HOST', $DB_PORT))
+    s.connect(('$DB_HOST', int('$DB_PORT')))
     s.close()
     exit(0)
 except:
@@ -30,7 +39,7 @@ except:
         echo "   Waiting for database... ($i/30)"
         sleep 1
     done
-    
+
     # Run database migrations
     echo "📦 Running database migrations..."
     alembic upgrade head || echo "⚠️  Migration skipped (may already be up to date)"
@@ -39,15 +48,23 @@ fi
 # Wait for Redis if configured
 if [ -n "$REDIS_URL" ]; then
     echo "⏳ Waiting for Redis..."
-    REDIS_HOST=$(echo $REDIS_URL | sed -e 's/redis:\/\/\([^:]*\):.*/\1/')
-    REDIS_PORT=$(echo $REDIS_URL | sed -e 's/.*:\([0-9]*\)\/.*/\1/')
-    
-    for i in {1..10}; do
+    REDIS_HOST=$(python -c "
+import re
+m = re.search(r'://([^:/]+)', '$REDIS_URL')
+print(m.group(1) if m else 'redis')
+")
+    REDIS_PORT=$(python -c "
+import re
+m = re.search(r'://[^:]+:(\d+)', '$REDIS_URL')
+print(m.group(1) if m else '6379')
+")
+
+    for i in $(seq 1 10); do
         if python -c "
 import socket
 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 try:
-    s.connect(('$REDIS_HOST', $REDIS_PORT))
+    s.connect(('$REDIS_HOST', int('$REDIS_PORT')))
     s.close()
     exit(0)
 except: