🗂️ refactor: organize Dockerfiles into docker/ directory and update all references

.gitea/workflows/ci-cd.yaml

@@ -109,7 +109,7 @@ jobs:
           
           # Build the image using traditional docker build
           docker build \
-            --file Dockerfile.build \
+            --file docker/Dockerfile.build \
             --tag "$IMAGE_NAME" \
             .
           
@@ -232,7 +232,7 @@ jobs:
           echo "Using dependency hash: $DEPS_HASH"
           
           # Create Dockerfile.prod with the correct cache image tag
-          cat > Dockerfile.prod << EOF
+          cat > docker/Dockerfile.prod << EOF
           # DanceLessonsCoach Production Docker Image
           # Generated by CI/CD pipeline with dependency hash: $DEPS_HASH
           
@@ -274,7 +274,7 @@ jobs:
           echo "Building Docker image with tags: $TAGS"
           
           # Build the production image
-          docker build -t dance-lessons-coach -f Dockerfile.prod .
+          docker build -t dance-lessons-coach -f docker/Dockerfile.prod .
           
           for TAG in $TAGS; do
             IMAGE_NAME="${{ env.CI_REGISTRY }}/${{ env.GITEA_ORG }}/${{ env.GITEA_REPO }}:$TAG"