[Fix](pyudf) Fix some pyudf issues

[linrrzqqq]

What problem does this PR solve?

Issue Number: close #xxx

Related PR: #xxx

Problem Summary:

1. After deleting the cache file for the corresponding UDF, using it again will cause an error.

</failure>
  </testcase>
  <testcase classname="stress.python_udf" name="python_udf_module_cache_isolation" time="100.051">
    <failure message="flowId=stress/python_udf/udf_module_cache_isolation.groovy#python_udf_module_cache_isolation" type="SuiteFailure">    logger.info("Scene 9a: function works before cache deletion, result=${r9a[0][0]}")

    // 删除所有 BE 上的 UDF cache 文件（只删文件，保留目录结构）
    aliveBEs.each { be -&gt;
        execSSH(be.Host, "find /mnt/hdd01/PERFORMANCE_ENV/be/lib/udf/ -mindepth 2 -type f -delete 2&gt;/dev/null; true")
    }
    logger.info("Scene 9b: UDF cache files deleted on all BEs")

    // 再次调用，BE 应自动重新下载 zip 并执行
    def r9b = sql "SELECT cache_recover_${runId}(10)"
^^^^^^^^^^^^^^^^^^^^^^^^^^ERROR LINE^^^^^^^^^^^^^^^^^^^^^^^^^^
    assert r9b[0][0] == 787, "cache recover after delete: expected 787, got ${r9b[0][0]}"
    logger.info("Scene 9c: function works after cache deletion, result=${r9b[0][0]}")

    // 批量验证恢复后的一致性
    def r9c = sql "SELECT cache_recover_${runId}(val) FROM t_cache_batch WHERE id &lt;= 5 ORDER BY id"
    for (int i = 0; i &lt; 5; i++) {
        def expected = (i + 1) + 777
        assert r9c[i][0] == expected, "cache recover batch[${i}]: expected ${expected}, got ${r9c[i][0]}"
    }
    logger.info("Scene 9 PASS: cache auto-recovery after manual deletion — all results consistent")

java.sql.SQLException: errCode = 2, detailMessage = (172.20.49.73)[RUNTIME_ERROR]Flight stream finish failed with message: Directory contains no Python (.py) files: /mnt/hdd01/PERFORMANCE_ENV/be/lib/udf/5/1775636895621.2cfe161cc9c6f0b2ca5e7dcb6286e924.cache_recover. Detail: Python exception: Traceback (most recent call last):
  File "pyarrow/_flight.pyx", line 2315, in pyarrow._flight._do_exchange
  File "/mnt/hdd01/PERFORMANCE_ENV/be/plugins/python_udf/python_server.py", line 2493, in do_exchange
    self._handle_exchange_udf(python_udf_meta, reader, writer)
  File "/mnt/hdd01/PERFORMANCE_ENV/be/plugins/python_udf/python_server.py", line 2005, in _handle_exchange_udf
    loader = UDFLoaderFactory.get_loader(python_udf_meta)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/mnt/hdd01/PERFORMANCE_ENV/be/plugins/python_udf/python_server.py", line 1161, in get_loader
    if UDFLoaderFactory.check_module(location):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/mnt/hdd01/PERFORMANCE_ENV/be/plugins/python_udf/python_server.py", line 1196, in check_module
    raise ValueError(
ValueError: Directory contains no Python (.py) files: /mnt/hdd01/PERFORMANCE_ENV/be/lib/udf/5/1775636895621.2cfe161cc9c6f0b2ca5e7dcb6286e924.cache_recover 

2. The error in py code cannot be correctly passed through

Doris> CREATE FUNCTION py_err_stats_test(INT)
    -> RETURNS INT
    -> PROPERTIES (
    ->     "type"="PYTHON_UDF",
    ->     "symbol"="evaluate",
    ->     "runtime_version"="3.12.11",
    ->     "always_nullable"="true"
    -> ) AS $$
    -> def evaluate(x):
    ->     raise TypeError("consistent_error_42")
    -> $$;
Query OK, 0 rows affected (0.004 sec)

-- Expected Error
Doris> SELECT py_err_stats_test(1);
+----------------------+
| py_err_stats_test(1) |
+----------------------+
|                 NULL |
+----------------------+
1 row in set (0.070 sec)

3. The python process cannot execute correctly after it hangs up.

 </testcase>
  <testcase classname="stress.python_udf" name="python_udf_cross_feature_import_storage" time="0.430">
    <failure message="flowId=stress/python_udf/cross_feature_import_storage.groovy#python_udf_cross_feature_import_storage" type="SuiteFailure">    def pyVer = System.getenv('python_version') ?: '3.12.11'
    def db = context.config.getDbNameByFile(context.file)
    sql "DROP DATABASE IF EXISTS ${db} FORCE"
    sql "CREATE DATABASE IF NOT EXISTS ${db}"
    sql "USE ${db}"

    if (!python_udf_require_olap_table("python_udf_cross_feature_import_storage.src_t")) {
        return
    }
    if (!python_udf_require_inline_function("python_udf_cross_feature_import_storage.inline_runtime", pyVer)) {
^^^^^^^^^^^^^^^^^^^^^^^^^^ERROR LINE^^^^^^^^^^^^^^^^^^^^^^^^^^
        return
    }

    // ===== 1. INSERT INTO ... SELECT 中使用 UDF =====
    sql "DROP TABLE IF EXISTS src_t"
    sql """
        CREATE TABLE src_t (id INT, v INT)
        DISTRIBUTED BY HASH(id) BUCKETS 1
        PROPERTIES("replication_num"="1")
    """

java.lang.IllegalStateException: PYTHON_UDF_BLOCKED suite=python_udf_cross_feature_import_storage scenario=python_udf_cross_feature_import_storage.inline_runtime reason=inline probe failed. reason=errCode = 2, detailMessage = (172.20.49.73)[INTERNAL_ERROR]IOError: Flight stream finish failed with gRPC code 14, message: failed to connect to all addresses; last error: UNKNOWN: unix:/tmp/doris_python_udf_55799.sock: Connection refused

4. Support parameterless calls

  </testcase>
  <testcase classname="stress.python_udf" name="python_udf_thirdparty_packages" time="6.084">
    <failure message="flowId=stress/python_udf/udf_thirdparty_packages.groovy#python_udf_thirdparty_packages" type="SuiteFailure">            versions["pandas"] = "not_found"
        try:
            import jieba
            versions["jieba"] = jieba.__version__
        except:
            versions["jieba"] = "not_found"
        return json.dumps(versions)
    \$\$
    """
    def rVer = sql("SELECT py_pkg_versions()")
^^^^^^^^^^^^^^^^^^^^^^^^^^ERROR LINE^^^^^^^^^^^^^^^^^^^^^^^^^^
    assert rVer[0][0] != null
    def verJson = new groovy.json.JsonSlurper().parseText(rVer[0][0].toString())
    logger.info("Package versions: python=${verJson.python}, numpy=${verJson.numpy}, pandas=${verJson.pandas}, jieba=${verJson.jieba}")
    // 验证包确实已安装（非 not_found）
    assert verJson.numpy != 'not_found', "numpy should be installed"
    assert verJson.pandas != 'not_found', "pandas should be installed"
    assert verJson.jieba != 'not_found', "jieba should be installed"
    logger.info("Package version verification: PASS")
    logger.warn("Package version info: skipped — PRODUCT LIMITATION: Python UDF does not support zero-argument functions")


java.sql.SQLException: errCode = 2, detailMessage = (172.20.49.73)[INVALID_ARGUMENT]Python UDF input types is empty

Release note

None

Check List (For Author)

• Test

  • Regression test
  • Unit Test
  • Manual test (add detailed scripts or steps below)
  • No need to test or manual test. Explain why:
    • This is a refactor/code format and no logic has been changed.
    • Previous test can cover this change.
    • No code files have been changed.
    • Other reason

• Behavior changed:

  • No.
  • Yes.

• Does this need documentation?

  • No.
  • Yes.

Check List (For Reviewer who merge this PR)

• Confirm the release note
• Confirm test cases
• Confirm document
• Add branch pick label

[hello-stephen]

Thank you for your contribution to Apache Doris.
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Please clearly describe your PR:

1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
3. What features were added. Why was this function added?
4. Which code was refactored and why was this part of the code refactored?
5. Which functions were optimized and what is the difference before and after the optimization?

[linrrzqqq]

run buildall

[hello-stephen]

BE Regression && UT Coverage Report

Increment line coverage 100.00% (67/67) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	71.85% (26719/37188)
Line Coverage	54.84% (283032/516076)
Region Coverage	51.89% (234450/451828)
Branch Coverage	53.38% (101447/190046)

[linrrzqqq]

run buildall

[hello-stephen]

BE Regression && UT Coverage Report

Increment line coverage 86.54% (90/104) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	73.73% (27428/37202)
Line Coverage	57.42% (296481/516358)
Region Coverage	54.73% (247442/452095)
Branch Coverage	56.35% (107160/190175)

[linrrzqqq]

run buildall

[hello-stephen]

BE Regression && UT Coverage Report

Increment line coverage 84.80% (106/125) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	73.64% (27388/37192)
Line Coverage	57.28% (295713/516250)
Region Coverage	54.36% (245718/452003)
Branch Coverage	56.07% (106590/190113)

[linrrzqqq]

run buildall

[hello-stephen]

FE UT Coverage Report

Increment line coverage 0.00% (0/6) 🎉
Increment coverage report
Complete coverage report

[linrrzqqq]

run buildall

[hello-stephen]

FE UT Coverage Report

Increment line coverage 0.00% (0/6) 🎉
Increment coverage report
Complete coverage report

[hello-stephen]

FE Regression Coverage Report

Increment line coverage 100.00% (6/6) 🎉
Increment coverage report
Complete coverage report

[hello-stephen]

BE UT Coverage Report

Increment line coverage 45.61% (26/57) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	53.30% (20358/38194)
Line Coverage	36.84% (191810/520595)
Region Coverage	33.16% (149242/450007)
Branch Coverage	34.27% (65270/190431)

[hello-stephen]

BE Regression && UT Coverage Report

Increment line coverage 45.61% (26/57) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	73.57% (27519/37407)
Line Coverage	57.35% (297646/518998)
Region Coverage	54.50% (247532/454164)
Branch Coverage	56.11% (107176/191004)

[linrrzqqq]

run buildall

[hello-stephen]

BE Regression && UT Coverage Report

Increment line coverage 86.51% (109/126) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	71.49% (26754/37425)
Line Coverage	53.86% (279634/519148)
Region Coverage	47.21% (214968/455372)
Branch Coverage	50.57% (97369/192550)

[hello-stephen]

FE Regression Coverage Report

Increment line coverage 5.41% (6/111) 🎉
Increment coverage report
Complete coverage report

[linrrzqqq]

run buildall

[hello-stephen]

FE Regression Coverage Report

Increment line coverage 86.51% (109/126) 🎉
Increment coverage report
Complete coverage report

[linrrzqqq]

run buildall

[hello-stephen]

run buildall