chore: update Docker build and release workflow

- Refactored the `docker-build.yml` workflow to improve clarity and maintainability.
- Ensured the workflow correctly handles Docker image building and pushing to the Gitea Container Registry upon version tag pushes.
- Enhanced the release step to generate release notes based on previous tags, improving release documentation.

.gitea/workflows/docker-build.yml

@@ -1,88 +1,88 @@
-name: Docker Build and Release
-
-on:
-  push:
-    tags: ["v*"]
-
-permissions:
-  contents: read
-  packages: write
-
-jobs:
-  build-and-push:
-    runs-on: ubuntu-latest
-    outputs:
-      tag: ${{ steps.meta.outputs.tag }}
-    steps:
-      - name: Checkout
-        uses: https://gitea.com/actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Set image meta
-        id: meta
-        run: |
-          TAG="${GITHUB_REF#refs/tags/}"
-          echo "tag=$TAG" >> $GITHUB_OUTPUT
-
-      - name: Set registry host
-        id: registry
-        run: |
-          host="${GITHUB_SERVER_URL#https://}"
-          host="${host#http://}"
-          echo "host=$host" >> $GITHUB_OUTPUT
-
-      - name: Check REGISTRY_TOKEN
-        run: |
-          if [ -z "${{ secrets.REGISTRY_TOKEN }}" ]; then
-            echo "::error::REGISTRY_TOKEN secret is not set. Add it in repository or organization settings."
-            exit 1
-          fi
-
-      - name: Login to Gitea Container Registry
-        run: |
-          host="${{ steps.registry.outputs.host }}"
-          echo "${{ secrets.REGISTRY_TOKEN }}" | docker login "$host" -u "${{ github.actor }}" --password-stdin
-
-      - name: Build and push Docker image
-        run: |
-          host="${{ steps.registry.outputs.host }}"
-          repository=$(echo "${{ github.repository }}" | tr '[:upper:]' '[:lower:]')
-          IMAGE="$host/$repository"
-          TAG="${{ steps.meta.outputs.tag }}"
-          docker build -t "$IMAGE:$TAG" -t "$IMAGE:latest" .
-          docker push "$IMAGE:$TAG"
-          docker push "$IMAGE:latest"
-
-  release:
-    runs-on: ubuntu-latest
-    needs: build-and-push
-    permissions:
-      contents: write
-    steps:
-      - name: Checkout
-        uses: https://gitea.com/actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Generate release notes
-        id: notes
-        run: |
-          TAG="${{ needs.build-and-push.outputs.tag }}"
-          PREV=""
-          for t in $(git tag -l --sort=-v:refname "v*"); do
-            [ "$t" = "$TAG" ] && continue
-            PREV="$t"
-            break
-          done
-          if [ -n "$PREV" ]; then
-            git log "$PREV..$TAG" --pretty=format:"- %s (%h)" --no-merges > release_notes.md
-          else
-            (git log -1 --pretty=format:"- %s (%h)" 2>/dev/null || echo "Initial release") > release_notes.md
-          fi
-
-      - name: Create Release
-        uses: https://gitea.com/actions/gitea-release-action@v1
-        with:
-          tag_name: ${{ needs.build-and-push.outputs.tag }}
-          body_path: release_notes.md
+name: Docker Build and Release
+
+on:
+  push:
+    tags: ["v*"]
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    outputs:
+      tag: ${{ steps.meta.outputs.tag }}
+    steps:
+      - name: Checkout
+        uses: https://gitea.com/actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set image meta
+        id: meta
+        run: |
+          TAG="${GITHUB_REF#refs/tags/}"
+          echo "tag=$TAG" >> $GITHUB_OUTPUT
+
+      - name: Set registry host
+        id: registry
+        run: |
+          host="${GITHUB_SERVER_URL#https://}"
+          host="${host#http://}"
+          echo "host=$host" >> $GITHUB_OUTPUT
+
+      - name: Check REGISTRY_TOKEN
+        run: |
+          if [ -z "${{ secrets.REGISTRY_TOKEN }}" ]; then
+            echo "::error::REGISTRY_TOKEN secret is not set. Add it in repository or organization settings."
+            exit 1
+          fi
+
+      - name: Login to Gitea Container Registry
+        run: |
+          host="${{ steps.registry.outputs.host }}"
+          echo "${{ secrets.REGISTRY_TOKEN }}" | docker login "$host" -u "${{ github.actor }}" --password-stdin
+
+      - name: Build and push Docker image
+        run: |
+          host="${{ steps.registry.outputs.host }}"
+          repository=$(echo "${{ github.repository }}" | tr '[:upper:]' '[:lower:]')
+          IMAGE="$host/$repository"
+          TAG="${{ steps.meta.outputs.tag }}"
+          docker build -t "$IMAGE:$TAG" -t "$IMAGE:latest" .
+          docker push "$IMAGE:$TAG"
+          docker push "$IMAGE:latest"
+
+  release:
+    runs-on: ubuntu-latest
+    needs: build-and-push
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout
+        uses: https://gitea.com/actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Generate release notes
+        id: notes
+        run: |
+          TAG="${{ needs.build-and-push.outputs.tag }}"
+          PREV=""
+          for t in $(git tag -l --sort=-v:refname "v*"); do
+            [ "$t" = "$TAG" ] && continue
+            PREV="$t"
+            break
+          done
+          if [ -n "$PREV" ]; then
+            git log "$PREV..$TAG" --pretty=format:"- %s (%h)" --no-merges > release_notes.md
+          else
+            (git log -1 --pretty=format:"- %s (%h)" 2>/dev/null || echo "Initial release") > release_notes.md
+          fi
+
+      - name: Create Release
+        uses: https://gitea.com/actions/gitea-release-action@v1
+        with:
+          tag_name: ${{ needs.build-and-push.outputs.tag }}
+          body_path: release_notes.md