build: use Caddyfile generation instead of nginx

build.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Build all sites: generate nginx.conf, render templates, prepare build/ directory
+# Build all sites: generate Caddyfile, render templates, prepare build/ directory
 set -euo pipefail
 
 SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd)
@@ -11,10 +11,10 @@ echo "=== Onepager Build ==="
 rm -rf "$BUILD_DIR"
 mkdir -p "$BUILD_DIR"
 
-# 1. Generate nginx.conf
-echo "[1/3] Generating nginx.conf..."
-"$SCRIPT_DIR/nginx/generate-nginx.sh" "$SCRIPT_DIR/sites" > "$SCRIPT_DIR/nginx/nginx.conf"
-echo "  -> nginx/nginx.conf written"
+# 1. Generate Caddyfile
+echo "[1/3] Generating Caddyfile..."
+"$SCRIPT_DIR/generate-caddyfile.sh" "$SCRIPT_DIR/sites" > "$SCRIPT_DIR/Caddyfile"
+echo "  -> Caddyfile written"
 
 # 2. Build each site
 echo "[2/3] Building sites..."
@@ -45,15 +45,6 @@ for site_dir in "$SCRIPT_DIR/sites"/*/; do
 done
 echo "  -> $count sites built"
 
-# 3. Validate nginx config (if docker is available)
-echo "[3/3] Validating nginx config..."
-if command -v docker &>/dev/null; then
-    docker run --rm \
-        -v "$SCRIPT_DIR/nginx/nginx.conf:/etc/nginx/nginx.conf:ro" \
-        -v "$BUILD_DIR:/usr/share/nginx/html:ro" \
-        nginx:alpine nginx -t 2>&1 && echo "  -> nginx config valid" || echo "  [WARN] nginx validation failed (non-fatal for local builds)"
-else
-    echo "  [SKIP] Docker not available, skipping nginx validation"
-fi
-
+# 3. Report
+echo "[3/3] Build complete"
 echo "=== Build complete: $count sites ==="