Use snapshots instead of custom NFS implementation

.github/workflows/build-and-push.yml

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+name: Release and Publish Docker Images
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Release version (e.g. v1.2.3)'
+        required: true
+        type: string
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_PREFIX: ${{ github.repository }}
+  VERSION: ${{ github.event.inputs.version }}
+
+jobs:
+  build-binaries:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - goos: linux
+            goarch: amd64
+          - goos: linux
+            goarch: arm64
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.24'
+
+      - name: Build test-runner
+        env:
+          GOOS: ${{ matrix.goos }}
+          GOARCH: ${{ matrix.goarch }}
+          CGO_ENABLED: 0
+        run: |
+          go build -o test-runner-${{ matrix.goos }}-${{ matrix.goarch }} ./cmd/test-runner
+
+      - name: Build snapshot-checker
+        env:
+          GOOS: ${{ matrix.goos }}
+          GOARCH: ${{ matrix.goarch }}
+          CGO_ENABLED: 0
+        run: |
+          go build -o snapshot-checker-${{ matrix.goos }}-${{ matrix.goarch }} ./cmd/snapshot-checker
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: binaries-${{ matrix.goos }}-${{ matrix.goarch }}
+          path: |
+            test-runner-${{ matrix.goos }}-${{ matrix.goarch }}
+            snapshot-checker-${{ matrix.goos }}-${{ matrix.goarch }}
+
+  docker:
+    needs: build-binaries
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    strategy:
+      matrix:
+        include:
+          - name: test-runner
+            dockerfile: Dockerfile.test-runner
+          - name: snapshot-checker
+            dockerfile: Dockerfile.snapshot-checker
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ${{ matrix.dockerfile }}
+          push: true
+          tags: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}/${{ matrix.name }}:${{ env.VERSION }}
+            ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}/${{ matrix.name }}:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+  release:
+    needs: [build-binaries, docker]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: binaries
+          merge-multiple: true
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v1
+        with:
+          tag_name: ${{ env.VERSION }}
+          files: binaries/*
+          generate_release_notes: true

Dockerfile.snapshot-checker

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+# Build stage
+FROM golang:1.24-alpine AS builder
+
+WORKDIR /app
+
+# Install git for fetching dependencies
+RUN apk add --no-cache git
+
+# Copy go mod files first for better caching
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy source code
+COPY . .
+
+# Build the snapshot-checker application
+RUN CGO_ENABLED=0 GOOS=linux go build -o /app/snapshot-checker ./cmd/snapshot-checker
+
+# Final stage
+FROM alpine:latest
+
+WORKDIR /app
+
+# Install ca-certificates for HTTPS requests and docker-cli for snapshot operations
+RUN apk add --no-cache ca-certificates docker-cli
+
+# Copy binary from builder
+COPY --from=builder /app/snapshot-checker /app/snapshot-checker
+
+ENTRYPOINT ["/app/snapshot-checker"]

Dockerfile.test-runner

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+# Build stage
+FROM golang:1.24-alpine AS builder
+
+WORKDIR /app
+
+# Install git for fetching dependencies
+RUN apk add --no-cache git
+
+# Copy go mod files first for better caching
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy source code
+COPY . .
+
+# Build the test-runner application
+RUN CGO_ENABLED=0 GOOS=linux go build -o /app/test-runner ./cmd/test-runner
+
+# Final stage
+FROM alpine:latest
+
+WORKDIR /app
+
+# Install ca-certificates for HTTPS requests and docker-cli for snapshot operations
+RUN apk add --no-cache ca-certificates docker-cli
+
+# Copy binary from builder
+COPY --from=builder /app/test-runner /app/test-runner
+
+ENTRYPOINT ["/app/test-runner"]