add drug dosages parsing, add postgres db

compose.yaml

@@ -8,9 +8,15 @@ services:
       - "${PUBLIC_API_PORT:-7311}:8000"
     volumes:
       - ./src:/app/src
+      - ./alembic/versions:/app/alembic/versions
     depends_on:
       - redis
-
+      - db
+    networks:
+      - ai-network
+    links:
+      - db
+      - redis
 
   redis:
     image: redis:7-alpine
@@ -18,6 +24,29 @@ services:
       - redis_data:/data
     command: redis-server --appendonly yes
     restart: unless-stopped
+    networks:
+      - ai-network
+
+  db:
+      image: postgres:17
+      env_file:
+        - .env
+      environment:
+        POSTGRES_USER: ${POSTGRES_USER}
+        POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+        POSTGRES_DB: ${POSTGRES_DB}
+      ports:
+        - "${PUBLIC_POSTGRES_PORT:-5434}:5432"
+      volumes:
+        - postgres_data:/var/lib/postgresql/data
+      networks:
+      - ai-network
+
 
 volumes:
   redis_data:
+  postgres_data:
+
+networks:
+  ai-network:
+    driver: bridge