Consolidate all moonweb sites into single Eleventy config

- Single eleventy.config.js at root with computed pathPrefix per section
- Accent colors inlined in base.njk (no per-site theme.css needed)
- Hub pages output at root via explicit permalinks
- Per-section sitemaps with tag-based collections
- .eleventyignore excludes stefankoelle, timecapsule, markdown files
- Deleted: 5 per-site configs, merge script
- Simplified: package.json (single build/dev commands)
- Simplified: GitHub Actions workflow (no matrix, no merge job)
- Fixed: parent links for sub-site detail pages

scripts/merge-moonweb.sh

@@ -1,49 +0,0 @@
-#!/bin/bash
-set -e
-
-echo "Merging moonweb sites for deployment..."
-
-# Clean previous merge
-rm -rf dist/root
-
-# Hub becomes root
-echo "  hub → dist/ (root)"
-cp -r dist/hub dist/root
-rm -rf dist/hub
-
-# Copy timecapsule from its build output
-if [ -d "timecapsule/_site/timecapsule" ]; then
-  echo "  timecapsule → dist/root/timecapsule/"
-  cp -r timecapsule/_site/timecapsule dist/root/timecapsule
-else
-  echo "  WARNING: timecapsule/_site/timecapsule not found, skipping"
-fi
-
-# Subdirectories
-for site in infra smarthome code retro; do
-  if [ -d "dist/$site" ]; then
-    echo "  $site → dist/root/$site/"
-    cp -r "dist/$site" "dist/root/$site"
-  else
-    echo "  WARNING: dist/$site not found, skipping"
-  fi
-done
-
-# Copy CSS to root (accessible from all subdirectories)
-echo "  Copying shared CSS to root..."
-cp shared/base.css dist/root/shared-base.css
-cp shared/favicon/hub.svg dist/root/favicon.svg
-
-# Theme CSS files are already copied during build as theme.css
-# The root theme is hub's theme
-if [ -f "dist/root/theme.css" ]; then
-  echo "  Root theme.css already in place"
-fi
-
-echo ""
-echo "Merge complete. Final structure:"
-find dist/root -maxdepth 2 -type f | sort | head -50
-echo "..."
-echo ""
-echo "Total files:"
-find dist/root -type f | wc -l