docs(readme): document new code structure and CI publish

Replace the outdated top-level file tree with a package-focused code structure
section that reflects the current `lib/*` layout and responsibilities.

Add a Gitea workflow section describing tagged Docker publish behavior, image
tags, test step, and runner requirements so release automation is clear and
repeatable.docs(readme): document new code structure and CI publish

Replace the outdated top-level file tree with a package-focused code structure
section that reflects the current `lib/*` layout and responsibilities.

Add a Gitea workflow section describing tagged Docker publish behavior, image
tags, test step, and runner requirements so release automation is clear and
repeatable.

.gitea/workflows/docker-publish.yml

@@ -0,0 +1,48 @@
+name: Build and Publish Docker Image
+run-name: Publishing ${{ gitea.ref_name }}
+
+on:
+  push:
+    tags:
+      - "v*"
+
+env:
+  IMAGE_NAME: tea.chunkbyte.com/kato/cpu-benchmarker-server
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+          cache: false
+
+      - name: Run Tests
+        run: go test ./...
+
+      - name: Verify Docker Availability
+        run: docker version
+
+      - name: Build Docker Image
+        run: |
+          docker build \
+            -t $IMAGE_NAME:${{ gitea.ref_name }} \
+            -t $IMAGE_NAME:latest \
+            .
+
+      - name: Login to Gitea Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: tea.chunkbyte.com
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+
+      - name: Push Docker Image
+        run: |
+          docker push $IMAGE_NAME:${{ gitea.ref_name }}
+          docker push $IMAGE_NAME:latest