refs #702: align HMM MCP contract and settings

src/main/java/com/cloudhandson/vpdbackoffice/service/JdbcHmmAiAgentToolRunner.java

@@ -0,0 +1,45 @@
+package com.cloudhandson.vpdbackoffice.service;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.TextNode;
+import java.sql.Clob;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Service;
+
+/** JDBC implementation shared with the standalone HMM MCP facade. */
+@Service
+public class JdbcHmmAiAgentToolRunner implements HmmAiAgentToolRunner {
+
+  private final JdbcTemplate jdbcTemplate;
+  private final ObjectMapper objectMapper;
+
+  public JdbcHmmAiAgentToolRunner(JdbcTemplate jdbcTemplate, ObjectMapper objectMapper) {
+    this.jdbcTemplate = jdbcTemplate;
+    this.objectMapper = objectMapper;
+  }
+
+  @Override
+  public JsonNode run(String toolName, com.fasterxml.jackson.databind.node.ObjectNode input) {
+    try {
+      String request = objectMapper.writeValueAsString(input);
+      String response = jdbcTemplate.queryForObject("""
+          SELECT DBMS_CLOUD_AI_AGENT.RUN_TOOL(?, TO_CLOB(?))
+          FROM dual
+          """, (resultSet, rowNum) -> {
+        Clob clob = resultSet.getClob(1);
+        return clob == null ? "" : clob.getSubString(1, (int) clob.length());
+      }, toolName, request);
+      if (response == null || response.isBlank()) {
+        return objectMapper.createObjectNode();
+      }
+      try {
+        return objectMapper.readTree(response);
+      } catch (Exception ignored) {
+        return TextNode.valueOf(response);
+      }
+    } catch (Exception exception) {
+      throw new AppException("HMM AI Agent Tool 실행에 실패했습니다: " + exception.getMessage());
+    }
+  }
+}