Add fss package publish workflow

Author: aesopov

.github/workflows/publish-ui.yml

@@ -4,6 +4,7 @@ on:
   push:
     branches: [main]
     paths:
+      - "packages/fss/**"
       - "packages/ui/**"
       - "packages/extension-api/**"
       - "pnpm-lock.yaml"
@@ -14,8 +15,60 @@ permissions:
   contents: read
 
 jobs:
+  publish-fss:
+    runs-on: self-hosted
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: pnpm/action-setup@v5
+
+      - uses: actions/setup-node@v6
+        with:
+          node-version: 24
+          cache: pnpm
+          registry-url: https://registry.npmjs.org
+        env:
+          NPM_CONFIG_CACHE: ${{ github.workspace }}/.npm-cache
+
+      - run: pnpm install --frozen-lockfile
+        env:
+          NPM_CONFIG_CACHE: ${{ github.workspace }}/.npm-cache
+
+      - name: Check npm version
+        id: version_check
+        shell: bash
+        env:
+          NPM_CONFIG_CACHE: ${{ github.workspace }}/.npm-cache
+        run: |
+          PACKAGE_NAME=$(node -p "require('./packages/fss/package.json').name")
+          PACKAGE_VERSION=$(node -p "require('./packages/fss/package.json').version")
+          PUBLISHED_VERSION=$(npm view "$PACKAGE_NAME" version 2>/dev/null || true)
+
+          echo "package_name=$PACKAGE_NAME" >> "$GITHUB_OUTPUT"
+          echo "package_version=$PACKAGE_VERSION" >> "$GITHUB_OUTPUT"
+
+          if [ "$PUBLISHED_VERSION" = "$PACKAGE_VERSION" ]; then
+            echo "should_publish=false" >> "$GITHUB_OUTPUT"
+            echo "Version $PACKAGE_VERSION is already published for $PACKAGE_NAME."
+          else
+            echo "should_publish=true" >> "$GITHUB_OUTPUT"
+            if [ -n "$PUBLISHED_VERSION" ]; then
+              echo "Publishing $PACKAGE_NAME@$PACKAGE_VERSION over current npm version $PUBLISHED_VERSION."
+            else
+              echo "Publishing first npm release for $PACKAGE_NAME@$PACKAGE_VERSION."
+            fi
+          fi
+
+      - name: Publish fss package
+        if: steps.version_check.outputs.should_publish == 'true'
+        run: pnpm publish --access public --no-git-checks
+        working-directory: packages/fss
+        env:
+          NPM_CONFIG_CACHE: ${{ github.workspace }}/.npm-cache
+
   publish-extension-api:
     runs-on: self-hosted
+    needs: publish-fss
     steps:
       - uses: actions/checkout@v6