feat: introduce WeKnora Lite edition with lightweight configuration and deployment

- Added a new `.env.lite.example` file for the Lite version, providing a minimal configuration template.
- Updated `.env.example` to remove deprecated variables and include new Docreader settings.
- Enhanced Docker configurations to support the Lite version, including a new Dockerfile for the Docreader service.
- Introduced a Makefile target for building and running the Lite version, along with packaging capabilities.
- Created GitHub workflows for building and releasing Lite binaries, including Homebrew formula support.
- Implemented a new service file for managing the Lite version as a system service.

This update enables a streamlined, single-binary deployment of WeKnora, reducing external dependencies and simplifying setup.

.github/workflows/docker-image.yml

@@ -137,13 +137,13 @@ jobs:
             platform: linux/arm64
             runs: ubuntu-24.04-arm
     runs-on: ${{ matrix.runs }}
+    timeout-minutes: 45
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-        id: setup-buildx
 
       - name: Login to Docker Hub
         uses: docker/login-action@v3
@@ -172,23 +172,6 @@ jobs:
           # 显示版本信息
           ./scripts/get_version.sh info
       
-      - name: Build Cache for Docker
-        uses: actions/cache@v4
-        id: cache
-        with:
-          path: go-pkg-mod
-          key: ${{ env.PLATFORM_PAIR }}-go-build-cache-${{ hashFiles('**/go.sum') }}
-
-      - name: Inject go-build-cache
-        uses: reproducible-containers/buildkit-cache-dance@v3
-        with:
-          builder: ${{ steps.setup-buildx.outputs.name }}
-          cache-map: |
-            {
-              "go-pkg-mod": "/go/pkg/mod"
-            }
-          skip-extraction: ${{ steps.cache.outputs.cache-hit }}
-
       - name: Build app Image
         id: build
         uses: docker/build-push-action@v3

.github/workflows/release-lite.yml

@@ -0,0 +1,246 @@
+name: Release Lite Binaries
+
+on:
+  push:
+    tags:
+      - "v*"
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Release tag (e.g. v0.2.0)"
+        required: true
+
+concurrency:
+  group: release-lite-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+
+env:
+  GO_VERSION: "1.24"
+  NODE_VERSION: "22"
+
+jobs:
+  # ── 1. Build frontend once, share as artifact ──
+  build-frontend:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: npm
+          cache-dependency-path: frontend/package-lock.json
+
+      - name: Build frontend
+        working-directory: frontend
+        run: |
+          npm ci
+          npm run build
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: frontend-dist
+          path: frontend/dist/
+          retention-days: 1
+
+  # ── 2. Build Go binary per platform (native CGO) ──
+  build-binary:
+    needs: build-frontend
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-latest
+            goos: linux
+            goarch: amd64
+          - os: ubuntu-24.04-arm
+            goos: linux
+            goarch: arm64
+          - os: macos-13
+            goos: darwin
+            goarch: amd64
+          - os: macos-14
+            goos: darwin
+            goarch: arm64
+    runs-on: ${{ matrix.os }}
+    env:
+      CGO_ENABLED: 1
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+          cache: true
+
+      - uses: actions/download-artifact@v4
+        with:
+          name: frontend-dist
+          path: web/
+
+      - name: Resolve version
+        id: ver
+        run: |
+          if [ -n "${{ inputs.tag }}" ]; then
+            VERSION="${{ inputs.tag }}"
+          else
+            VERSION="${GITHUB_REF#refs/tags/}"
+          fi
+          echo "version=${VERSION}" >> "$GITHUB_OUTPUT"
+          echo "Building ${VERSION} for ${{ matrix.goos }}/${{ matrix.goarch }}"
+
+      - name: Build
+        run: |
+          export EDITION=lite
+          eval "$(./scripts/get_version.sh env)"
+          LDFLAGS="-w -s $(./scripts/get_version.sh ldflags)"
+          export CGO_CFLAGS="-Wno-deprecated-declarations"
+          if [ "${{ matrix.goos }}" = "darwin" ]; then
+            export CGO_LDFLAGS="-Wl,-no_warn_duplicate_libraries"
+          fi
+          go build -tags "sqlite_fts5" -ldflags="${LDFLAGS}" \
+            -o WeKnora-lite ./cmd/server
+
+      - name: Package tarball
+        run: |
+          ARCHIVE="WeKnora-lite_${{ steps.ver.outputs.version }}_${{ matrix.goos }}_${{ matrix.goarch }}"
+          mkdir -p "${ARCHIVE}/web"
+          cp WeKnora-lite "${ARCHIVE}/"
+          cp -r web/* "${ARCHIVE}/web/"
+          cp .env.lite.example "${ARCHIVE}/"
+          cp docs/LITE.md "${ARCHIVE}/README.md"
+          if [ -d config ]; then
+            cp -r config "${ARCHIVE}/config"
+          fi
+          if [ -d migrations/sqlite ]; then
+            mkdir -p "${ARCHIVE}/migrations/sqlite"
+            cp -r migrations/sqlite/* "${ARCHIVE}/migrations/sqlite/"
+          fi
+          if [ -f deploy/weknora-lite.service ]; then
+            cp deploy/weknora-lite.service "${ARCHIVE}/"
+          fi
+          tar czf "${ARCHIVE}.tar.gz" "${ARCHIVE}"
+          shasum -a 256 "${ARCHIVE}.tar.gz" > "${ARCHIVE}.tar.gz.sha256"
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: release-${{ matrix.goos }}-${{ matrix.goarch }}
+          path: |
+            WeKnora-lite_*.tar.gz
+            WeKnora-lite_*.tar.gz.sha256
+          retention-days: 3
+
+  # ── 3. Create GitHub Release ──
+  release:
+    needs: build-binary
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/download-artifact@v4
+        with:
+          pattern: release-*
+          merge-multiple: true
+
+      - name: Resolve version
+        id: ver
+        run: |
+          if [ -n "${{ inputs.tag }}" ]; then
+            VERSION="${{ inputs.tag }}"
+          else
+            VERSION="${GITHUB_REF#refs/tags/}"
+          fi
+          echo "version=${VERSION}" >> "$GITHUB_OUTPUT"
+
+      - name: Generate release notes
+        id: notes
+        run: |
+          cat > notes.md << 'NOTES'
+          ## WeKnora Lite ${{ steps.ver.outputs.version }}
+
+          单二进制部署，零外部依赖（无需 Docker / PostgreSQL / Redis）。
+
+          ### 快速开始
+
+          ```bash
+          # 1. 解压
+          tar xzf WeKnora-lite_${{ steps.ver.outputs.version }}_<os>_<arch>.tar.gz
+          cd WeKnora-lite_${{ steps.ver.outputs.version }}_<os>_<arch>
+
+          # 2. 配置
+          cp .env.lite.example .env.lite
+          # 编辑 .env.lite，至少确认 OLLAMA_BASE_URL 正确
+
+          # 3. 启动 Ollama（如尚未运行）
+          ollama serve &
+          ollama pull qwen2.5:7b
+          ollama pull nomic-embed-text
+
+          # 4. 运行
+          set -a && source .env.lite && set +a
+          ./WeKnora-lite
+          # 访问 http://localhost:8080
+          ```
+
+          ### 平台支持
+
+          | 文件 | 平台 |
+          |------|------|
+          | `WeKnora-lite_*_linux_amd64.tar.gz` | Linux x86_64 |
+          | `WeKnora-lite_*_linux_arm64.tar.gz` | Linux ARM64 |
+          | `WeKnora-lite_*_darwin_amd64.tar.gz` | macOS Intel |
+          | `WeKnora-lite_*_darwin_arm64.tar.gz` | macOS Apple Silicon |
+
+          详细文档见 [LITE.md](docs/LITE.md)。
+          NOTES
+
+      - name: Create release
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh release create "${{ steps.ver.outputs.version }}" \
+            --title "WeKnora Lite ${{ steps.ver.outputs.version }}" \
+            --notes-file notes.md \
+            WeKnora-lite_*.tar.gz \
+            WeKnora-lite_*.tar.gz.sha256
+
+  # ── 4. Update Homebrew Formula ──
+  update-homebrew:
+    needs: release
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: main
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Resolve version
+        id: ver
+        run: |
+          if [ -n "${{ inputs.tag }}" ]; then
+            VERSION="${{ inputs.tag }}"
+          else
+            VERSION="${GITHUB_REF#refs/tags/}"
+          fi
+          echo "version=${VERSION}" >> "$GITHUB_OUTPUT"
+
+      - name: Wait for release assets to be available
+        run: sleep 15
+
+      - name: Update Formula
+        run: ./scripts/update-homebrew-formula.sh "${{ steps.ver.outputs.version }}"
+
+      - name: Commit and push
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add Formula/weknora-lite.rb
+          if git diff --cached --quiet; then
+            echo "No changes to Formula"
+          else
+            git commit -m "formula: update weknora-lite to ${{ steps.ver.outputs.version }}"
+            git push origin main
+          fi