Add RustAPI Cookbook documentation and CI deploy

Introduces a new 'cookbook' documentation using mdBook under docs/cookbook, including architecture and recipes sections. Adds a GitHub Actions workflow to build and deploy the cookbook to GitHub Pages. Updates Cargo.toml to remove example crates from the workspace and refines the benchmarking script for improved usability and options.

Author: Tuntii

.github/workflows/deploy-cookbook.yml

@@ -0,0 +1,35 @@
+name: Deploy Cookbook
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'docs/cookbook/**'
+      - '.github/workflows/deploy-cookbook.yml'
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write  # To push to gh-pages branch
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install mdBook
+        uses: peaceiris/actions-mdbook@v2
+        with:
+          mdbook-version: 'latest'
+
+      - name: Build Cookbook
+        run: mdbook build docs/cookbook
+
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./docs/cookbook/book
+          destination_dir: cookbook
+          keep_files: true  # Keep existing files in gh-pages if any (useful if main site is also there)
+          commit_message: "Deploy cookbook: ${{ github.event.head_commit.message }}"