feat: convert Module 08 into interactive autograded workspace

.devcontainer/devcontainer.json

@@ -1,18 +1,21 @@
 // Dev container for the Forge SWEXP starter repo.
 // Open in GitHub Codespaces (Code -> Codespaces -> Create) or VS Code Dev Containers
 // for a zero-setup environment with Git, the right runtime, and the gh CLI preinstalled.
-// Then follow README.md / Lesson_00.md to pick up your first ticket.
+// Then follow README.md to pick up your first lab.
 {
   "name": "SWEXP 08 Platform Engineering Containerization",
   "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
   "features": {
     "ghcr.io/devcontainers/features/node:1": {
       "version": "20"
     },
+    "ghcr.io/devcontainers/features/python:1": {
+      "version": "3.12"
+    },
     "ghcr.io/devcontainers/features/docker-in-docker:2": {},
     "ghcr.io/devcontainers/features/github-cli:1": {}
   },
-  "postCreateCommand": "echo '\\n=== Forge SWEXP environment ready ==='; git --version; node --version 2>/dev/null; echo 'Open README.md, then Lesson_00.md to begin.'",
+  "postCreateCommand": "npm install; python3 -c 'import yaml' 2>/dev/null || pip install --quiet pyyaml; echo '\\n=== Forge SWEXP environment ready ==='; git --version; node --version 2>/dev/null; python3 --version 2>/dev/null; docker --version 2>/dev/null; echo 'Open README.md, then start with labs/lab-00-setup.'",
   "customizations": {
     "vscode": {
       "extensions": [

.github/workflows/autograde.yml

@@ -0,0 +1,63 @@
+name: Autograde
+
+on:
+  push:
+    branches: ["**"]
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  grade:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: "npm"
+
+      - name: Install dependencies (bats)
+        run: npm ci
+
+      - name: Ensure PyYAML (compose/CI/k8s YAML graders parse with python3)
+        run: python3 -c "import yaml" || pip install --quiet pyyaml
+
+      - name: Run autograder
+        id: grade
+        continue-on-error: true
+        run: npm run grade
+
+      - name: Publish score to job summary
+        if: always()
+        run: cat grade-report.md >> "$GITHUB_STEP_SUMMARY" || true
+
+      - name: Comment score on pull request
+        if: always() && github.event_name == 'pull_request'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const fs = require('fs');
+            const marker = '<!-- swexp-autograde -->';
+            let body = marker + '\n';
+            try { body += fs.readFileSync('grade-report.md', 'utf8'); }
+            catch { body += 'Autograder did not produce a report.'; }
+            const { owner, repo } = context.repo;
+            const issue_number = context.issue.number;
+            const { data: comments } = await github.rest.issues.listComments({ owner, repo, issue_number });
+            const existing = comments.find(c => c.body && c.body.includes(marker));
+            if (existing) {
+              await github.rest.issues.updateComment({ owner, repo, comment_id: existing.id, body });
+            } else {
+              await github.rest.issues.createComment({ owner, repo, issue_number, body });
+            }
+
+      - name: Fail the check if incomplete
+        if: steps.grade.outcome != 'success'
+        run: |
+          echo "Exercises are not yet complete — see the autograde summary above."
+          exit 1

.gitignore

@@ -1,2 +1,5 @@
 .DS_Store
 node_modules/
+.grade/
+grade-report.md
+errors.log