Establish clean homelab infrastructure baseline

Reorganize the brownfield repository, remove retired and generated artifacts, harden ignore rules, and record the GitOps/IaC redesign.

apps/netboot/config/nginx/nginx.conf

@@ -0,0 +1,26 @@
+user nbxyz;
+worker_processes 4;
+pid /run/nginx.pid;
+include /etc/nginx/modules/*.conf;
+
+events {
+	worker_connections 768;
+}
+
+http {
+	sendfile on;
+	tcp_nopush on;
+	tcp_nodelay on;
+	keepalive_timeout 65;
+	types_hash_max_size 2048;
+	client_max_body_size 0;
+	include /etc/nginx/mime.types;
+	default_type application/octet-stream;
+	access_log /config/log/nginx/access.log;
+	error_log /config/log/nginx/error.log;
+	gzip on;
+	gzip_disable "msie6";
+	include /config/nginx/site-confs/*;
+  
+}
+daemon off;

apps/netboot/config/nginx/site-confs/default

@@ -0,0 +1,12 @@
+server {
+	listen 8080;
+	location / {
+		root /assets;
+		autoindex on;
+	}
+	# menus/binaries over HTTP — for UEFI HTTP Boot (serves the first-stage .efi)
+	location /menus/ {
+		alias /config/menus/;
+		autoindex on;
+	}
+}