feat: add SEO landing page, MkDocs docs site, and blog posts

- Polish landing page with animated GIFs, nav header, JSON-LD, improved install section
- Add GitHub Pages workflow for docs/ deployment
- Set up MkDocs Material documentation site (8 pages) with dark theme
- Add GitHub Pages workflow for docs-site deployment to gh-pages
- Write 3 SEO blog posts about agent debugging patterns
- Add robots.txt and sitemap.xml for SEO

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: acailic

.github/workflows/docs-pages.yml

@@ -0,0 +1,53 @@
+name: Deploy Documentation to GitHub Pages
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'docs-site/**'
+      - '.github/workflows/docs-pages.yml'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+          cache: 'pip'
+
+      - name: Install dependencies
+        working-directory: ./docs-site
+        run: |
+          pip install -r requirements.txt
+
+      - name: Build site
+        working-directory: ./docs-site
+        run: |
+          mkdocs build
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v5
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: ./docs-site/site
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

.github/workflows/pages.yml

@@ -0,0 +1,40 @@
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'docs/**'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v5
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: './docs'
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

docs-site/build.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+set -euo pipefail
+cd "$(dirname "$0")"
+pip install -r requirements.txt
+mkdocs build
+echo "Site built to site/"