Prepare for public release

- Rebrand to Hyper Scatter with Pico CSS styling
- Add benchmark link to header, make header thinner
- Add npm metadata (keywords, author, license, repo)
- Add clustered distribution option for Poincaré demo
- Add GitHub Actions: CI, npm publish, Pages deploy
- Update WebGL defaults to neutral grayscale
- Add vite.config.ts for multi-page build
- Add LICENSE (MIT) and CONTRIBUTING.md

Author: mnm-matin

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+# Run tests and build on PRs and pushes
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build demo
+        run: npm run build
+
+      - name: Build library
+        run: npm run build:lib
+
+      - name: Check types
+        run: npx tsc --noEmit

.github/workflows/deploy.yml

@@ -0,0 +1,54 @@
+# Deploy to GitHub Pages
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches: ['main']
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: 'pages'
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: './dist'
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

.github/workflows/npm-publish.yml

@@ -0,0 +1,49 @@
+# Publish package to npm
+
+name: Publish to npm
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+    inputs:
+      dry_run:
+        description: 'Dry run (do not actually publish)'
+        type: boolean
+        default: true
+
+permissions:
+  contents: read
+  id-token: write
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build library
+        run: npm run build:lib
+
+      - name: Publish (dry run)
+        if: ${{ github.event.inputs.dry_run == 'true' }}
+        run: npm publish --dry-run
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+
+      - name: Publish to npm
+        if: ${{ github.event_name == 'release' || github.event.inputs.dry_run == 'false' }}
+        run: npm publish --provenance --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.gitignore

@@ -6,3 +6,6 @@ dist-lib/
 *.tgz
 .DS_Store
 research/
+scripts/
+docs/
+.playwright-mcp/

CONTRIBUTING.md

@@ -0,0 +1,45 @@
+# Contributing to hyper-scatter
+
+First off, thanks for taking the time to contribute!
+
+This project has a unique architecture designed to ensure correctness while maximizing performance. Before you write code, please understand the **Reference/Candidate** methodology.
+
+## The Core Philosophy
+
+We maintain two implementations for every renderer:
+
+1.  **Reference (Canvas2D)**: The "Ground Truth". Optimized for readability and correctness.
+2.  **Candidate (WebGL2)**: The "Speed Demon". Optimized for performance.
+
+Any feature or bug fix must first be verified in the **Reference** implementation. Once the semantics are correct there, we port/optimize it in the **Candidate** implementation and verify they match using the accuracy benchmarks.
+
+## Development Workflow
+
+1.  **Install dependencies**
+    ```bash
+    npm install
+    ```
+
+2.  **Run the dev server**
+    ```bash
+    npm run dev
+    ```
+
+3.  **Run benchmarks**
+    *   **Correctness**: `npm run bench:accuracy` (Run this before opening a PR!)
+    *   **Performance**: `npm run bench`
+
+## Future Roadmap
+
+We are looking for contributions in the following areas:
+*   **Spherical Geometry**: Implementing spherical embeddings (S²) using the same Reference/Candidate pattern.
+*   **WASM Core**: Moving the heavy math checks to WASM for even better CPU throughput.
+
+## Code Style
+
+*   We use TypeScript.
+*   Formatting is handled by Prettier/ESLint (run lint before committing).
+
+## Attribution
+
+By contributing to this project, you agree that your contributions will be licensed under the MIT License.

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.