Add web demo playground for doublets-rs

.github/workflows/deploy-demo.yml

@@ -0,0 +1,70 @@
+name: Deploy Web Demo
+
+on:
+  push:
+    branches: [ main ]
+    paths:
+      - 'web-demo/**'
+      - 'doublets/**'
+      - '.github/workflows/deploy-demo.yml'
+  pull_request:
+    branches: [ main ]
+    paths:
+      - 'web-demo/**'
+      - 'doublets/**'
+  workflow_dispatch:
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
+
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Setup Rust
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        target: wasm32-unknown-unknown
+        override: true
+
+    - name: Install wasm-pack
+      run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+
+    - name: Cache cargo dependencies
+      uses: actions/cache@v3
+      with:
+        path: |
+          ~/.cargo/registry
+          ~/.cargo/git
+          target
+        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+    - name: Build web demo
+      run: |
+        cd web-demo
+        wasm-pack build --target web --out-dir pkg
+
+    - name: Setup Pages
+      if: github.ref == 'refs/heads/main'
+      uses: actions/configure-pages@v3
+
+    - name: Upload artifact
+      if: github.ref == 'refs/heads/main'
+      uses: actions/upload-pages-artifact@v2
+      with:
+        path: ./web-demo
+
+    - name: Deploy to GitHub Pages
+      if: github.ref == 'refs/heads/main'
+      id: deployment
+      uses: actions/deploy-pages@v2

.gitignore

@@ -0,0 +1 @@
+target/

Cargo.toml

@@ -4,6 +4,9 @@ members = [
     "doublets-ffi",
     "doublets",
 
+    # web demo
+    "web-demo",
+
     # dev
     "dev-deps/mem-rs",
     "dev-deps/data-rs",

README.md

@@ -11,6 +11,16 @@ later
 
 later
 
+## Web Demo
+
+Try the interactive WebAssembly demo: [**🔗 Doublets Playground**](https://linksplatform.github.io/doublets-rs/)
+
+The web demo allows you to:
+- Create and manage doublets interactively
+- Explore link relationships visually  
+- Learn doublets concepts in your browser
+- See real-time operations and results
+
 ## Example
 
 A basic operations in doublets: