feat: add FastAPI manager API compatibility baseline

main/manager-api-fastapi/tests/java/AgentMcpCryptoInteropCli.java

@@ -0,0 +1,19 @@
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.util.HexFormat;
+
+import xiaozhi.common.utils.AESUtils;
+
+public final class AgentMcpCryptoInteropCli {
+    private AgentMcpCryptoInteropCli() {
+    }
+
+    public static void main(String[] args) throws Exception {
+        if (args.length != 2) {
+            throw new IllegalArgumentException("usage: AgentMcpCryptoInteropCli <agent-id> <key>");
+        }
+        byte[] digest = MessageDigest.getInstance("MD5").digest(args[0].getBytes(StandardCharsets.UTF_8));
+        String json = "{\"agentId\": \"%s\"}".formatted(HexFormat.of().formatHex(digest));
+        System.out.print(AESUtils.encrypt(args[1], json));
+    }
+}