fix: Add --legacy-peer-deps to npm install in docker-compose for React 18/19 peer dependency conflict

This fixes the dashboard container failing to install dependencies due to
react-leaflet v5 requiring React 19 while the project uses React 18.3.1.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

docker-compose.dev.yml

@@ -44,7 +44,7 @@ services:
     volumes:
       - ./dashboard:/app
       - /app/node_modules
-    command: ["sh", "-c", "npm install && npm run dev -- --host 0.0.0.0 --port 8090"]
+    command: ["sh", "-c", "npm install --legacy-peer-deps && npm run dev -- --host 0.0.0.0 --port 8090"]
     ports:
       - "8090:8090"
     environment: