Add CLAUDE.md for Claude Code guidance

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: johanrin

CLAUDE.md

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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+This is a Hugo static blog site deployed to GitHub Pages. The site focuses on AI, cloud architecture, and Microsoft Foundry content.
+
+**Tech Stack:** Hugo (v0.153.2) with hugo-blog-awesome theme (Git submodule)
+
+## Common Commands
+
+```bash
+# Local development
+hugo server                         # Start dev server with live reload
+
+# Production build
+hugo --gc --minify                  # Build with garbage collection and minification
+
+# Create new blog post
+hugo new posts/my-post/index.md     # Creates post from archetypes/default.md template
+```
+
+## Architecture
+
+```
+content/en/
+├── posts/          # Blog posts (each post is a directory with index.md + images)
+├── pages/          # Static pages (about.md)
+└── _index.md       # Homepage
+
+layouts/            # Custom overrides for theme templates
+├── _default/_markup/render-image.html  # Image zoom effect
+├── partials/bio.html                   # Author bio
+├── partials/custom-head.html           # OG/Twitter meta tags
+└── robots.txt                          # SEO configuration
+
+themes/hugo-blog-awesome/   # Theme submodule (do not edit directly)
+```
+
+## Content Structure
+
+Blog posts use directory-based organization:
+```
+content/en/posts/my-post/
+├── index.md        # Post content with YAML front matter
+├── cover.png       # Featured image
+└── *.png           # Additional images
+```
+
+**Front matter fields:** title, date, image, description, categories, tags, draft
+
+## Configuration
+
+Main configuration is in `hugo.toml`:
+- Language: English (en-us)
+- Theme: hugo-blog-awesome
+- Dark mode by default
+- Google Analytics enabled
+- Table of Contents: H2-H4 levels
+
+## Deployment
+
+GitHub Actions workflow (`.github/workflows/hugo.yaml`) automatically builds and deploys to GitHub Pages on push to `main` branch.