Add Reltio AgentFlow theme + update compose for 3-service architecture

- custom.css: Reltio dark theme (purple-navy palette, wave bg, frosted glass sidebar, gradient buttons)
- darkWave2.svg: Wave background asset from reltio.ai
- docker-compose.yml: gateway + mcpo + webui with CSS/SVG volume mounts

docker-compose.yml

@@ -1,14 +1,45 @@
 services:
-  forge:
-    image: node:22-slim
-    container_name: forge-console
-    working_dir: /app
-    command: >
-      sh -c "cd web && npm install --production --silent && node server.js"
-    ports:
-      - "3000:3000"
+  gateway:
+    image: ghcr.io/jwadow/kiro-gateway:latest
+    container_name: pm-gateway
     env_file:
       - .env
+    environment:
+      - DEBUG_MODE=${DEBUG_MODE:-}
+    ports:
+      - "8000:8000"
     volumes:
-      - .:/app
+      - "${KIRO_CLI_DATA:-~/.local/share/kiro-cli}:/home/kiro/.local/share/kiro-cli:ro"
     restart: unless-stopped
+
+  mcpo:
+    image: ghcr.io/open-webui/mcpo:latest
+    container_name: pm-mcpo
+    command: --config /config/mcporter.json --port 3001
+    ports:
+      - "3001:3001"
+    volumes:
+      - ./config/mcporter.json:/config/mcporter.json:ro
+    restart: unless-stopped
+
+  webui:
+    image: ghcr.io/open-webui/open-webui:main
+    container_name: pm-webui
+    ports:
+      - "3000:8080"
+    env_file:
+      - .env
+    environment:
+      - OPENAI_API_BASE_URL=http://gateway:8000/v1
+      - OPENAI_API_KEY=${OPENAI_API_KEY:-sk-none}
+    volumes:
+      - webui-data:/app/backend/data
+      - ./openwebui/custom.css:/app/build/static/custom.css:ro
+      - ./openwebui/darkWave2.svg:/app/build/static/darkWave2.svg:ro
+    depends_on:
+      - gateway
+      - mcpo
+    restart: unless-stopped
+
+volumes:
+  webui-data: