🚀 Add Interactive CLI Docs with DeepGuide

.dg/.gitignore

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+# DeepGuide
+.dg/casts/
+.dg/svg/

.dg/README.md

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+# DeepGuide Integration
+
+This directory holds configuration and interactive demo assets for [DeepGuide](https://github.com/deepguide-ai/dg).
+
+To add your first demo, run:
+
+```bash
+npx @deepguide-ai/dg capture
+```

.dg/config.json

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+{
+  "version": "0.1.0",
+  "project": "cli",
+  "outputDir": ".dg",
+  "casts": []
+}

.github/workflows/dg-validate.yml

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+name: DeepGuide
+
+on:
+  push:
+    branches: [ main, master, develop ]
+  pull_request:
+    branches: [ main, master ]
+
+jobs:
+  validate:
+    name: Validate Demos
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20'
+
+    - name: Install asciinema
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y asciinema
+
+    - name: Validate demos
+      run: npx @deepguide-ai/dg validate --non-interactive