Feat: Web loader

Proxy/Local/default.conf

@@ -1,3 +1,8 @@
+map $http_cookie $moku_bootstrap_document {
+  default /__loader/index.html;
+  "~*(^|; )moku_loader_seen=1($|;)" /index.html;
+}
+
 server {
   listen 80;
   server_name _;
@@ -5,8 +10,19 @@ server {
   root /usr/share/nginx/html;
   index index.html;
 
+  location = / {
+    add_header Cache-Control "no-store";
+    rewrite ^ $moku_bootstrap_document last;
+  }
+
+  location ^~ /__loader/ {
+    access_log off;
+    add_header Cache-Control "no-store";
+    try_files $uri =404;
+  }
+
   location / {
-    try_files $uri $uri/ /index.html;
+    try_files $uri $uri/ $moku_bootstrap_document;
   }
 
   location /favicon.ico {