chore: add build "pr-test" workflow, add a message for testing to new pr. (#7543)

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

@@ -0,0 +1,42 @@
+name: Build PR Test Docker Image
+
+on:
+  schedule:
+    # Runs at 2:00 AM UTC on the 1st of every month
+    - cron: "0 2 1 * *"
+  workflow_dispatch: # Allow manual trigger
+
+permissions: {}
+
+jobs:
+  build-docker-pr-test:
+    # Only run on the original repository, not on forks
+    if: github.repository == 'louislam/uptime-kuma'
+    runs-on: ubuntu-latest
+    timeout-minutes: 120
+    permissions:
+      contents: read
+
+    steps:
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with: { persist-credentials: false }
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130 # v3.7.0
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@988b5a0280414f521da01fcc63a27aeeb4b104db # v3.6.1
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Use Node.js 26
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        with:
+          node-version: 26
+
+      - name: Build and push pr-test2
+        run: node --run build-docker-pr-test

.github/workflows/pr-description-check.yml

@@ -36,10 +36,11 @@ jobs:
               return;
             }
 
+            const owner = context.repo.owner;
+            const repo = context.repo.repo;
+            const number = pr.number;
+
             if (!body || !body.toLowerCase().includes(requiredPhrase.toLowerCase())) {
-              const owner = context.repo.owner;
-              const repo = context.repo.repo;
-              const number = pr.number;
 
               const commentBody = `Hello! This pull request does not follow the repository's PR template and is being closed automatically.`;
 
@@ -52,4 +53,7 @@ jobs:
               core.info(`Closed PR #${number} because required phrase was not present.`);
             } else {
               core.info("PR description contains required phrase; no action taken.");
+
+              const commentBody = `Thanks for the PR! If anyone would like to help with testing, run: \`npx kuma-pr ${pr.user.login}:${pr.head.ref}\` (requires Node.js and Docker)`;
+              await github.rest.issues.createComment({ owner, repo, issue_number: number, body: commentBody });
             }