feat(docs): add client library help

core/help/.gitignore

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+package-lock.json
+docs
+.vscode
+.coverage
+__pycache__

core/help/.repo-metadata.json

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+{
+  "name": "help",
+  "name_pretty": "Client library help",
+  "language": "nodejs",
+  "repo": "googleapis/google-cloud-node",
+  "distribution_name": "",
+  "product_documentation": "https://cloud.google.com/nodejs/docs/reference/help/latest",
+  "library_type": "OTHER"
+}

core/help/docs-devsite.sh

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+#!/bin/bash
+
+# Usage: ./docs-devsite.sh
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+DOCS_DIR="$SCRIPT_DIR/docs"
+ROOT_DIR="$(cd "$SCRIPT_DIR/../.." && pwd)"
+
+# Copy root README.md to getting-started.md
+mkdir -p $DOCS_DIR
+echo "Copying root README.md to help/docs/getting-started.md..."
+cp "$ROOT_DIR/README.md" "$DOCS_DIR/getting-started.md"
+
+# Generate toc.yaml
+echo "Generating toc.yaml in $ABS_DIR..."
+TOC_FILE="$DOCS_DIR/toc.yaml"
+
+# Write the top-level structure
+echo "-" > "$TOC_FILE"
+echo "  uid: product-neutral-guides" >> "$TOC_FILE"
+echo "  name: 'Client library help'" >> "$TOC_FILE"
+echo "  items:" >> "$TOC_FILE"
+echo "    -" >> "$TOC_FILE"
+echo "      name: 'Getting started'" >> "$TOC_FILE"
+echo "      href: getting-started.md" >> "$TOC_FILE"
+
+# Find .md files and append to TOC
+for f in $(ls "$ROOT_DIR"/docs/*.md | sort); do
+  if [ -f "$f" ]; then
+    filename=$(basename "$f")
+    echo "Copying $filename to help/docs/$filename..."
+    cp $f $DOCS_DIR
+    case "$filename" in
+      "authentication.md")
+        name="Authentication"
+        ;;
+      "faq.md")
+        name="FAQ"
+        ;;
+      "troubleshooting.md")
+        name="Troubleshooting"
+        ;;
+      "getting-started.md")
+        name="Getting Started"
+        ;;
+      *)
+        name="${filename%.md}" # Fallback
+        name="$(echo "$name" | awk '{print toupper(substr($0,1,1))substr($0,2)}')"
+        ;;
+    esac
+    echo "    -" >> "$TOC_FILE"
+    echo "      name: '$name'" >> "$TOC_FILE"
+    echo "      href: $filename" >> "$TOC_FILE"
+  fi
+done
+

core/help/package.json

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+{
+  "version": "1.0.0",
+  "scripts": {
+    "docs": "./docs-devsite.sh"
+  }
+}