Add Docker support for Ormin + BaraDB dev stack

- docker-compose.ormin.yml: BaraDB + Ormin dev environment
- clients/nim/ormin/docker/Dockerfile: dev image with Nim 2.2.10
- clients/nim/ormin/docker/entrypoint.sh: auto-install deps
- docker-compose.test.yml: add Ormin compile test

docker-compose.test.yml

@@ -84,6 +84,23 @@ services:
         nim c --path:src -r tests/test_integration.nim
       "
 
+  test-ormin:
+    image: nimlang/nim:2.2.10
+    depends_on:
+      baradb:
+        condition: service_healthy
+    environment:
+      - BARADB_HOST=baradb
+      - BARADB_PORT=9472
+    volumes:
+      - ./clients/nim:/workspace
+    working_dir: /workspace/ormin
+    command: >
+      sh -c "
+        nimble install -y &&
+        nim c examples/baradb_basic.nim
+      "
+
   test-rust:
     image: rust:1.78
     depends_on: