Add test postgres docker compose

server/docker-compose.test.yaml

@@ -0,0 +1,21 @@
+version: "3.8"
+
+services:
+  postgres:
+    image: postgres:17
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: lemma_test
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+volumes:
+  postgres-data:

server/run_integration_tests.sh

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+#!/bin/bash
+
+set -e
+
+COMPOSE_FILE=docker-compose.test.yaml
+
+if ! docker compose -f $COMPOSE_FILE ps postgres | grep -q "running"; then
+  docker compose -f $COMPOSE_FILE up -d
+    until docker compose -f $COMPOSE_FILE exec postgres pg_isready -U postgres; do
+    sleep 1
+  done
+  echo "PostgreSQL is ready!"
+fi
+
+export LEMMA_TEST_POSTGRES_URL="postgres://postgres:postgres@localhost:5432/lemma_test?sslmode=disable"
+
+echo "Running integration tests..."
+go test -v -tags=integration ./...
+
+docker compose -f $COMPOSE_FILE down