ci: cross-repo publish workflow for @dakera-ai/ai-sdk (DAK-7289)

Author: SDK Lead

.github/workflows/publish-ai-sdk.yml

@@ -0,0 +1,56 @@
+name: Publish @dakera-ai/ai-sdk to npm
+
+on:
+  workflow_dispatch:
+    inputs:
+      ref:
+        description: 'Tag or SHA to publish (e.g. v0.1.1)'
+        required: true
+        default: 'main'
+
+permissions:
+  contents: read
+
+jobs:
+  publish:
+    name: Publish ai-sdk
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout dakera-ai-sdk (public repo)
+        uses: actions/checkout@v7
+        with:
+          repository: dakera-ai/dakera-ai-sdk
+          ref: ${{ github.event.inputs.ref }}
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v6
+        with:
+          node-version: "22"
+          registry-url: "https://registry.npmjs.org"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Check version
+        id: check
+        run: |
+          PKG_VERSION=$(node -p "require('./package.json').version")
+          echo "version=${PKG_VERSION}" >> "$GITHUB_OUTPUT"
+          if npm view "@dakera-ai/ai-sdk@${PKG_VERSION}" version 2>/dev/null | grep -q "${PKG_VERSION}"; then
+            echo "already=true" >> "$GITHUB_OUTPUT"
+            echo "v${PKG_VERSION} already on npm — skipping."
+          else
+            echo "already=false" >> "$GITHUB_OUTPUT"
+            echo "v${PKG_VERSION} not on npm — will publish."
+          fi
+
+      - name: Publish to npm
+        if: steps.check.outputs.already != 'true'
+        run: npm publish --access=public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}