Add GitHub Actions workflow to deploy docs to gh-pages

Adds a workflow with manual trigger (workflow_dispatch) that generates
TypeDoc documentation and publishes it to the gh-pages branch using
peaceiris/actions-gh-pages.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: jonathanhefner

.github/workflows/docs.yml

@@ -0,0 +1,29 @@
+name: Deploy Documentation
+
+on:
+  workflow_dispatch:
+  # Future: Uncomment to auto-deploy on release
+  # release:
+  #   types: [published]
+
+permissions:
+  contents: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: oven-sh/setup-bun@v2
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+      - run: npm install
+      - run: npm run build
+      - run: npm run docs
+      - uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./docs
+          publish_branch: gh-pages
+          force_orphan: true