try pr test build?

.github/workflows/pr-test-build.yml

@@ -0,0 +1,66 @@
+name: "PR Test Build"
+
+on:
+  workflow_dispatch:
+    inputs:
+      pr_number:
+        description: 'PR number to build'
+        required: true
+        type: string
+
+jobs:
+  build-test:
+    permissions:
+      contents: write
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: "macos-26"
+            args: "--target aarch64-apple-darwin"
+            target: "aarch64-apple-darwin"
+          - platform: "macos-latest"
+            args: "--target x86_64-apple-darwin"
+            target: "x86_64-apple-darwin"
+          - platform: "ubuntu-22.04"
+            args: "--bundles deb"
+            target: "x86_64-unknown-linux-gnu"
+          - platform: "ubuntu-24.04"
+            args: "--bundles appimage,rpm"
+            target: "x86_64-unknown-linux-gnu"
+          - platform: "windows-latest"
+            args: ""
+            target: "x86_64-pc-windows-msvc"
+          - platform: "windows-11-arm"
+            args: "--target aarch64-pc-windows-msvc"
+            target: "aarch64-pc-windows-msvc"
+
+    uses: ./.github/workflows/build.yml
+    with:
+      platform: ${{ matrix.platform }}
+      target: ${{ matrix.target }}
+      build-args: ${{ matrix.args }}
+      sign-binaries: true
+      asset-prefix: "handy-pr-${{ inputs.pr_number }}"
+      upload-artifacts: true
+      is-debug-build: ${{ contains(matrix.args, '--debug') }}
+      ref: ${{ format('refs/pull/{0}/merge', inputs.pr_number) }}
+    secrets: inherit
+
+  comment-on-pr:
+    needs: build-test
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - name: Post artifact links to PR
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const runUrl = `${context.serverUrl}/${context.repo.owner}/${context.repo.repo}/actions/runs/${context.runId}`;
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: ${{ inputs.pr_number }},
+              body: `## 🧪 Test Build Ready\n\nBuild artifacts for PR #${{ inputs.pr_number }} are available for testing.\n\n**[Download artifacts from workflow run](${runUrl})**\n\nArtifacts expire after 30 days.`
+            });