fix #565: read ORDS vector body stream once

src/test/java/com/cloudhandson/vpdbackoffice/web/GuidedFlowTemplateTest.java

@@ -126,6 +126,19 @@ class GuidedFlowTemplateTest {
         .contains("검색 기술 상세 보기");
   }
 
+  @Test
+  void vectorOrdsHandlerReadsBodyStreamOnlyOnce() throws IOException {
+    String sql = Files.readString(Path.of("sql/adb/29_agent_ords_vector_search_ords.sql"));
+
+    assertThat(sql)
+        .contains("v_body_text      CLOB")
+        .contains("v_body_text := :body_text")
+        .contains("Duplicate stream parameter")
+        .doesNotContain("JSON_QUERY(\n    :body_text")
+        .doesNotContain("JSON_VALUE(\n      :body_text");
+    assertThat(sql.split("v_body_text := :body_text", -1)).hasSize(2);
+  }
+
   private String template(String relativePath) throws IOException {
     return Files.readString(Path.of("src/main/resources/templates").resolve(relativePath));
   }