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/apisix-source/ci/pod/opa/data.json

@@ -0,0 +1,30 @@
+{
+    "users": {
+        "alice": {
+            "headers": {
+                "Location": "http://example.com/auth"
+            },
+            "status_code": 302
+        },
+        "bob": {
+            "headers": {
+                "test": "abcd",
+                "abcd": "test"
+            }
+        },
+        "carla": {
+            "reason": "Give you a string reason"
+        },
+        "dylon": {
+            "reason": {
+                "code": 40001,
+                "desc": "Give you a object reason"
+            }
+        },
+        "elisa": {
+            "reason": {
+               "info": []
+            }
+        }
+    }
+}