chore(security): Add daily security audit

.devcontainer/devcontainer.json

@@ -0,0 +1,14 @@
+{
+    "name": "Node.js 24 & pnpm",
+    "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
+    "features": {
+        "ghcr.io/devcontainers/features/node:1": {
+            "nodeGypDependencies": true,
+            "installYarnUsingApt": true,
+            "version": "lts",
+            "pnpmVersion": "latest",
+            "nvmVersion": "latest"
+        },
+        "ghcr.io/devcontainers/features/git-lfs:1": {}
+    }
+}

.github/workflows/audit.yml

@@ -0,0 +1,47 @@
+name: Security Audit
+
+on:
+  push:
+    branches: [main, dev]
+  pull_request:
+    branches:
+      - '**'
+  schedule:
+    - cron: '0 8 * * *' 
+  workflow_dispatch: 
+
+jobs:
+  audit:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      issues: write
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: latest
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Run security audit
+        id: audit
+        run: pnpm audit --audit-level moderate
+        continue-on-error: true
+
+      - name: Create issue on failure
+        if: steps.audit.outcome == 'failure'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            github.rest.issues.create({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              title: 'Security Audit Failed',
+              body: 'The daily security audit has failed. Please check the workflow run for details: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}',
+              labels: ['security', 'audit']
+            });