feat: complete migration to Deno with automated releases

- Remove old Node.js infrastructure (package.json, tsconfig.json, bin/nupst launcher, setup.sh)
- Update install.sh to download pre-compiled binaries from Gitea releases
- Add Gitea Actions CI/CD workflows:
  - ci.yml: Type checking, linting, and build verification
  - release.yml: Automated binary compilation and release on tags
- Update .gitignore for Deno-focused project structure
- Binary-based distribution requires no dependencies or build steps

.gitea/workflows/release.yml

@@ -0,0 +1,182 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build-and-release:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Deno
+        uses: denoland/setup-deno@v1
+        with:
+          deno-version: v1.x
+
+      - name: Get version from tag
+        id: version
+        run: |
+          VERSION=${GITHUB_REF#refs/tags/}
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "version_number=${VERSION#v}" >> $GITHUB_OUTPUT
+          echo "Building version: $VERSION"
+
+      - name: Verify deno.json version matches tag
+        run: |
+          DENO_VERSION=$(grep -o '"version": "[^"]*"' deno.json | cut -d'"' -f4)
+          TAG_VERSION="${{ steps.version.outputs.version_number }}"
+          echo "deno.json version: $DENO_VERSION"
+          echo "Tag version: $TAG_VERSION"
+          if [ "$DENO_VERSION" != "$TAG_VERSION" ]; then
+            echo "ERROR: Version mismatch!"
+            echo "deno.json has version $DENO_VERSION but tag is $TAG_VERSION"
+            exit 1
+          fi
+
+      - name: Compile binaries for all platforms
+        run: |
+          echo "================================================"
+          echo "  NUPST Release Compilation"
+          echo "  Version: ${{ steps.version.outputs.version }}"
+          echo "================================================"
+          echo ""
+
+          mkdir -p dist/binaries
+
+          # Linux x86_64
+          echo "→ Compiling for Linux x86_64..."
+          deno compile --allow-all --no-check \
+            --output dist/binaries/nupst-linux-x64 \
+            --target x86_64-unknown-linux-gnu mod.ts
+          echo "  ✓ Linux x86_64 complete"
+
+          # Linux ARM64
+          echo "→ Compiling for Linux ARM64..."
+          deno compile --allow-all --no-check \
+            --output dist/binaries/nupst-linux-arm64 \
+            --target aarch64-unknown-linux-gnu mod.ts
+          echo "  ✓ Linux ARM64 complete"
+
+          # macOS x86_64
+          echo "→ Compiling for macOS x86_64..."
+          deno compile --allow-all --no-check \
+            --output dist/binaries/nupst-macos-x64 \
+            --target x86_64-apple-darwin mod.ts
+          echo "  ✓ macOS x86_64 complete"
+
+          # macOS ARM64
+          echo "→ Compiling for macOS ARM64..."
+          deno compile --allow-all --no-check \
+            --output dist/binaries/nupst-macos-arm64 \
+            --target aarch64-apple-darwin mod.ts
+          echo "  ✓ macOS ARM64 complete"
+
+          # Windows x86_64
+          echo "→ Compiling for Windows x86_64..."
+          deno compile --allow-all --no-check \
+            --output dist/binaries/nupst-windows-x64.exe \
+            --target x86_64-pc-windows-msvc mod.ts
+          echo "  ✓ Windows x86_64 complete"
+
+          echo ""
+          echo "All binaries compiled successfully!"
+          ls -lh dist/binaries/
+
+      - name: Generate SHA256 checksums
+        run: |
+          cd dist/binaries
+          sha256sum * > SHA256SUMS.txt
+          cat SHA256SUMS.txt
+          cd ../..
+
+      - name: Extract changelog for this version
+        id: changelog
+        run: |
+          VERSION="${{ steps.version.outputs.version }}"
+
+          # Check if CHANGELOG.md exists
+          if [ ! -f CHANGELOG.md ]; then
+            echo "No CHANGELOG.md found, using default release notes"
+            cat > /tmp/release_notes.md << EOF
+          ## NUPST $VERSION
+
+          Pre-compiled binaries for multiple platforms.
+
+          ### Installation
+
+          Use the installation script:
+          \`\`\`bash
+          curl -sSL https://code.foss.global/serve.zone/nupst/raw/branch/main/install.sh | sudo bash
+          \`\`\`
+
+          Or download the binary for your platform and make it executable.
+
+          ### Supported Platforms
+          - Linux x86_64 (x64)
+          - Linux ARM64 (aarch64)
+          - macOS x86_64 (Intel)
+          - macOS ARM64 (Apple Silicon)
+          - Windows x86_64
+
+          ### Checksums
+          SHA256 checksums are provided in SHA256SUMS.txt
+          EOF
+          else
+            # Try to extract section for this version from CHANGELOG.md
+            # This is a simple extraction - adjust based on your CHANGELOG format
+            awk "/## \[$VERSION\]/,/## \[/" CHANGELOG.md | sed '$d' > /tmp/release_notes.md || cat > /tmp/release_notes.md << EOF
+          ## NUPST $VERSION
+
+          See CHANGELOG.md for full details.
+
+          ### Installation
+
+          Use the installation script:
+          \`\`\`bash
+          curl -sSL https://code.foss.global/serve.zone/nupst/raw/branch/main/install.sh | sudo bash
+          \`\`\`
+          EOF
+          fi
+
+          echo "Release notes:"
+          cat /tmp/release_notes.md
+
+      - name: Create Gitea Release
+        uses: actions/gitea-release-action@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          tag_name: ${{ steps.version.outputs.version }}
+          name: NUPST ${{ steps.version.outputs.version }}
+          body_path: /tmp/release_notes.md
+          draft: false
+          prerelease: false
+          files: |
+            dist/binaries/nupst-linux-x64
+            dist/binaries/nupst-linux-arm64
+            dist/binaries/nupst-macos-x64
+            dist/binaries/nupst-macos-arm64
+            dist/binaries/nupst-windows-x64.exe
+            dist/binaries/SHA256SUMS.txt
+
+      - name: Release Summary
+        run: |
+          echo "================================================"
+          echo "  Release ${{ steps.version.outputs.version }} Complete!"
+          echo "================================================"
+          echo ""
+          echo "Binaries published:"
+          ls -lh dist/binaries/
+          echo ""
+          echo "Release URL:"
+          echo "https://code.foss.global/serve.zone/nupst/releases/tag/${{ steps.version.outputs.version }}"
+          echo ""
+          echo "Installation command:"
+          echo "curl -sSL https://code.foss.global/serve.zone/nupst/raw/branch/main/install.sh | sudo bash"
+          echo ""