new changes maps

deploy/osrm/docker-compose.yml

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+# Self-hosted OSRM routing backend.
+#
+# Run the one-off preprocessing in ./README.md FIRST — this file only serves
+# the already-built graph.
+#
+#   docker compose up -d
+#
+# Then point the app at it:
+#   flutter build apk --dart-define=OSRM_BASE_URL=http://your-host:5000
+
+services:
+  osrm:
+    image: ghcr.io/project-osrm/osrm-backend:latest
+    container_name: nearle-osrm
+    restart: unless-stopped
+    command: >
+      osrm-routed
+      --algorithm mld
+      --max-table-size 8000
+      /data/${OSRM_REGION:-southern-zone-latest}.osrm
+    volumes:
+      - ./data:/data:ro
+    ports:
+      - "5000:5000"
+    healthcheck:
+      # Coimbatore -> a nearby point; fails loudly if the graph did not load.
+      test:
+        - CMD-SHELL
+        - >-
+          wget -qO- "http://localhost:5000/route/v1/driving/76.9558,11.0168;76.9776,10.9984"
+          | grep -q '"code":"Ok"' || exit 1
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+    deploy:
+      resources:
+        limits:
+          # Southern-zone MLD needs well under this; raise for all-India.
+          memory: 4G