feat(apisix): add Cloudron package

- Implements Apache APISIX packaging for Cloudron platform.
- Includes Dockerfile, CloudronManifest.json, and start.sh.
- Configured to use Cloudron's etcd addon.

🤖 Generated with Gemini CLI
Co-Authored-By: Gemini <noreply@google.com>

CloudronPackages/APISIX/CloudronManifest.json

@@ -0,0 +1,33 @@
+{
+  "id": "apisix",
+  "title": "Apache APISIX",
+  "description": "Apache APISIX is a dynamic, real-time, high-performance API gateway.",
+  "tagline": "High-performance API Gateway",
+  "icon": "https://cdn.cloudron.io/icons/apisix.svg",
+  "main": {
+    "type": "docker",
+    "image": "cloudron/base:4.2.0",
+    "ports": {
+      "9080/tcp": "APISIX HTTP/HTTPS Port"
+    },
+    "healthCheck": {
+      "url": "/"
+    }
+  },
+  "manifestVersion": 2,
+  "addons": {
+    "etcd": {}
+  },
+  "environment": {
+    "APISIX_ETCD_HOST": {
+      "type": "string",
+      "description": "etcd host for APISIX",
+      "required": true
+    },
+    "APISIX_ETCD_PORT": {
+      "type": "string",
+      "description": "etcd port for APISIX",
+      "required": true
+    }
+  }
+}