feat: Add Docker testing infrastructure and fix compatibility issues

Author: hydropix

.github/workflows/docker-test.yml

@@ -32,15 +32,15 @@ jobs:
     - name: Build Docker image
       working-directory: ./deployment
       run: |
-        docker-compose build
+        docker compose build
 
     - name: Start Docker container
       working-directory: ./deployment
       run: |
         # Create .env file from example
         cp .env.docker.example .env
         # Start container in detached mode
-        docker-compose up -d
+        docker compose up -d
 
     - name: Wait for container to be healthy
       run: |
@@ -50,11 +50,11 @@ jobs:
     - name: Check container status
       working-directory: ./deployment
       run: |
-        docker-compose ps
+        docker compose ps
         # Check if container is running
-        if ! docker-compose ps | grep -q "Up"; then
+        if ! docker compose ps | grep -q "Up"; then
           echo "Container is not running!"
-          docker-compose logs
+          docker compose logs
           exit 1
         fi
 
@@ -90,13 +90,13 @@ jobs:
       working-directory: ./deployment
       run: |
         echo "Container logs:"
-        docker-compose logs
+        docker compose logs
 
     - name: Stop and cleanup
       if: always()
       working-directory: ./deployment
       run: |
-        docker-compose down -v
+        docker compose down -v
 
     - name: Test summary
       if: success()

deployment/TESTING.md

@@ -8,6 +8,8 @@ This guide explains how to test the Docker deployment of TranslateBookWithLLM.
 - For Windows: WSL 2 enabled
 - At least 2GB of free disk space
 
+**Note:** This guide uses `docker-compose` (standalone) commands. On newer systems (GitHub Actions, recent Ubuntu), use `docker compose` (with space) instead.
+
 ## Quick Start
 
 ### Automated Testing (Recommended)