test(aot): 添加 std 容器 unset 操作测试用例

- 为 std::map 添加 unset 测试用例，验证键值对删除功能
- 为 std::unordered_map 添加 unset 测试用例，验证哈希映射删除操作
- 为 std::array 添加 unset 测试用例，验证数组元素删除后默认值设置
- 为 std::vector 添加 unset 测试用例，验证向量元素删除后索引处理

tests/aot/std-array/011.phpt

@@ -0,0 +1,15 @@
+--TEST--
+std array: unset
+--FILE--
+<?php
+function main() {
+    $a = std::array(native_types::type_int, 30);
+    $a[11] = 99;
+    var_dump($a[11]);
+    unset($a[11]);
+    var_dump($a[11]);
+}
+?>
+--EXPECT--
+int(99)
+int(0)

tests/aot/std-map/009.phpt

@@ -0,0 +1,24 @@
+--TEST--
+std map: unset
+--FILE--
+<?php
+function main() {
+    $map = std::map(complex_types::type_string, native_types::type_int);
+    $map["alpha"] = 10;
+    $map["beta"] = 20;
+    var_dump($map);
+    unset($map["alpha"]);
+    var_dump($map);
+}
+?>
+--EXPECT--
+array(2) {
+  ["alpha"]=>
+  int(10)
+  ["beta"]=>
+  int(20)
+}
+array(1) {
+  ["beta"]=>
+  int(20)
+}

tests/aot/std-unordered-map/009.phpt

@@ -0,0 +1,24 @@
+--TEST--
+std unordered_map: unset
+--FILE--
+<?php
+function main() {
+    $map = std::unordered_map(complex_types::type_string, native_types::type_int);
+    $map["alpha"] = 10;
+    $map["beta"] = 20;
+    var_dump($map);
+    unset($map["alpha"]);
+    var_dump($map);
+}
+?>
+--EXPECT--
+array(2) {
+  ["beta"]=>
+  int(20)
+  ["alpha"]=>
+  int(10)
+}
+array(1) {
+  ["beta"]=>
+  int(20)
+}

tests/aot/std-vector/012.phpt

@@ -0,0 +1,31 @@
+--TEST--
+std vector: unset
+--FILE--
+<?php
+function main() {
+    $a = std::vector(native_types::type_int);
+    $a[] = 99;
+    $a[] = 88;
+    $a[] = 77;
+    var_dump($a);
+    unset($a[1]);
+    var_dump($a);
+}
+?>
+--EXPECT--
+array(3) {
+  [0]=>
+  int(99)
+  [1]=>
+  int(88)
+  [2]=>
+  int(77)
+}
+array(3) {
+  [0]=>
+  int(99)
+  [1]=>
+  int(0)
+  [2]=>
+  int(77)
+}