Add GitHub Actions workflow for beta deployment

Author: NellowTCS

.github/workflows/send-beta-build.yml

@@ -0,0 +1,85 @@
+name: Deploy to Beta
+
+on:
+  push:
+    branches:
+      - updates
+  workflow_dispatch:
+    inputs:
+      subfolder:
+        description: 'Target subfolder in beta repo'
+        required: true
+        default: 'HTMLNotes'
+
+concurrency:
+  group: "deploy-beta"
+  cancel-in-progress: false
+
+permissions:
+  contents: read
+
+jobs:
+  build-and-dispatch:
+    runs-on: ubuntu-latest
+    outputs:
+      artifact-url: ${{ steps.get-artifact.outputs.url }}
+    steps:
+      - name: Checkout source repo
+        uses: actions/checkout@v4
+        with:
+          ref: updates
+
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+
+      - name: Install dependencies
+        working-directory: Build
+        run: npm i
+
+      - name: Build
+        working-directory: Build
+        run: npm run build
+
+      - name: Zip build artifacts
+        run: zip -r htmlplayer-build.zip Build/dist
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: htmlplayer-build
+          path: htmlplayer-build.zip
+          retention-days: 1
+
+      - name: Get artifact download URL
+        id: get-artifact
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const artifacts = await github.rest.actions.listWorkflowRunArtifacts({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              run_id: context.runId
+            });
+            const artifact = artifacts.data.artifacts.find(a => a.name === 'htmlplayer-build');
+            if (!artifact) throw new Error('Artifact not found');
+            core.setOutput('url', artifact.archive_download_url);
+
+      - name: Dispatch to beta repo
+        run: |
+          SUBFOLDER="${{ github.event.inputs.subfolder }}"
+          ARTIFACT_URL="${{ steps.get-artifact.outputs.url }}"
+          curl -X POST \
+            -H "Authorization: token ${{ secrets.BETA_PAT_TOKEN }}" \
+            -H "Accept: application/vnd.github+json" \
+            https://api.github.com/repos/HTMLToolkit/beta/dispatches \
+            -d '{
+              "event_type": "deploy-build",
+              "client_payload": {
+                "source_repo": "'${{ github.repository }}'",
+                "artifact_url": "'${ARTIFACT_URL}'",
+                "token": "'${{ secrets.GITHUB_TOKEN }}'",
+                "subfolder": "'${SUBFOLDER}'"
+              }
+            }'