fix(clients): repair Python & Rust tests, add container test orchestration

- Python: fix wire protocol test method names (bool_val -> bool, etc.)
- Python: make integration tests and example fully async with pytest-asyncio
- Rust: add tokio dev-dependency and convert integration tests to async/await
- Rust: update ping_test example to async
- Nim: remove committed ELF build artifact
- Docker: add BARADB_HOST/BARADB_PORT env vars to test containers
- Docker: fix docker-compose.test.yml usage (remove --abort-on-container-exit)
- Add scripts/test-clients.sh for sequential client test runs
- Remove docker-compose.test.yml from .gitignore so it is tracked
- Fix repository URLs in Python and Rust READMEs

scripts/test-clients.sh

@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+# BaraDB — Client Integration Test Runner
+# Spins up the BaraDB server in Docker and runs all client test suites sequentially.
+#
+# Usage:
+#   ./scripts/test-clients.sh
+
+set -euo pipefail
+
+COMPOSE="docker compose -f docker-compose.test.yml"
+
+echo "=== Building BaraDB server image ==="
+$COMPOSE build baradb
+
+echo "=== Starting BaraDB server ==="
+$COMPOSE up -d baradb
+
+# Wait for server healthcheck
+echo "=== Waiting for server to be healthy ==="
+$COMPOSE ps baradb --format json 2>/dev/null | grep -q '"Health":"healthy"' || sleep 10
+
+# Give a little extra time for the wire protocol port to be ready
+sleep 3
+
+run_test() {
+  local service=$1
+  echo ""
+  echo "========================================"
+  echo "=== Running $service tests ==="
+  echo "========================================"
+  if $COMPOSE run --rm "$service"; then
+    echo "✅ $service tests PASSED"
+  else
+    echo "❌ $service tests FAILED"
+    EXIT_CODE=1
+  fi
+}
+
+EXIT_CODE=0
+
+run_test test-python
+run_test test-javascript
+run_test test-nim
+run_test test-rust
+
+echo ""
+echo "========================================"
+if [ "$EXIT_CODE" -eq 0 ]; then
+  echo "🎉 All client tests passed!"
+else
+  echo "⚠️  Some client tests failed."
+fi
+echo "========================================"
+
+echo "=== Stopping BaraDB server ==="
+$COMPOSE down -v
+
+exit $EXIT_CODE