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/t/plugin/proxy-mirror3.t

@@ -0,0 +1,76 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+use t::APISIX 'no_plan';
+
+repeat_each(1);
+log_level('info');
+no_root_location();
+no_shuffle();
+
+add_block_preprocessor(sub {
+    my ($block) = @_;
+
+    my $yaml_config = $block->yaml_config // <<_EOC_;
+apisix:
+    node_listen: 1984
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
+_EOC_
+
+    $block->set_value("yaml_config", $yaml_config);
+
+    if (!$block->request) {
+        $block->set_value("request", "POST /hello");
+    }
+});
+
+run_tests;
+
+__DATA__
+
+=== TEST 1: grpc mirror
+--- log_level: debug
+--- http2
+--- apisix_yaml
+routes:
+  -
+    id: 1
+    uris:
+        - /helloworld.Greeter/SayHello
+    methods: [
+        POST
+    ]
+    plugins:
+        proxy-mirror:
+            host: grpc://127.0.0.1:19797
+            sample_ratio: 1
+    upstream:
+      scheme: grpc
+      nodes:
+        "127.0.0.1:10051": 1
+      type: roundrobin
+#END
+--- exec
+grpcurl -import-path ./t/grpc_server_example/proto -proto helloworld.proto -plaintext -d '{"name":"apisix"}' 127.0.0.1:1984 helloworld.Greeter.SayHello
+--- response_body
+{
+  "message": "Hello apisix"
+}
+--- error_log eval
+qr/Connection refused\) while connecting to upstream/