feat(rathole,apisix): complete Rathole and APISIX Cloudron packages

- Fix Rathole download URL to use .zip format instead of .tar.gz
- Complete APISIX package using official apache/apisix:3.8.0-debian base image
- Add cloudron user creation for APISIX compatibility
- Both packages build successfully and follow KNELCloudron- naming convention
- Rathole: reverse proxy tunnel with proper binary download
- APISIX: API gateway with official Docker image base

CloudronPackages/APISIX/nginx.conf

@@ -0,0 +1,26 @@
+user  cloudron;
+worker_processes  auto;
+
+error_log  /var/log/nginx/error.log warn;
+pid        /run/nginx.pid;
+
+events { worker_connections  1024; }
+
+http {
+  include       /etc/nginx/mime.types;
+  default_type  application/octet-stream;
+  access_log    /var/log/nginx/access.log  main;
+  sendfile      on;
+
+  server {
+    listen 9180;
+    server_name _;
+
+    location / {
+      proxy_set_header Host $host;
+      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_pass http://127.0.0.1:9180;
+    }
+  }
+}
+