"Allow absolute occweb path" doesn't work on Windows

[jeanconn]

#369 doesn't work on windows and fails the unit test.

This looks to me because "/FOT/mission_planning/PRODUCTS/APPR_LOADS/2000/MAR/" isn't an "absolute path" on windows. If we want that string / path to be modified if supplied on windows, the #369 code probably just needs to be generalized to look for a string that starts with "/" instead of an "absolute path".

kadi\tests\test_occweb.py ..........F............                                                                            [100%]

============================================================ FAILURES =============================================================
__________________________________________________ test_get_occweb_dir_absolute ___________________________________________________

    @pytest.mark.skipif(not HAS_OCCWEB, reason="No access to OCCweb")
    def test_get_occweb_dir_absolute():
        """Test get_occweb_dir and get_occweb_page (which is called in the process)"""
        path = "/FOT/mission_planning/PRODUCTS/APPR_LOADS/2000/MAR/"
>       files_path = occweb.get_occweb_dir(path, cache=False)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

kadi\tests\test_occweb.py:126:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
kadi\occweb.py:375: in get_occweb_dir
    html = get_occweb_page(
kadi\occweb.py:337: in get_occweb_page
    req.raise_for_status()  # raise exception if not 200
    ^^^^^^^^^^^^^^^^^^^^^^
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <Response [404]>

    def raise_for_status(self):
        """Raises :class:`HTTPError`, if one occurred."""

        http_error_msg = ""
        if isinstance(self.reason, bytes):
            # We attempt to decode utf-8 first because some servers
            # choose to localize their reason strings. If the string
            # isn't utf-8, we fall back to iso-8859-1 for all other
            # encodings. (See PR #3538)
            try:
                reason = self.reason.decode("utf-8")
            except UnicodeDecodeError:
                reason = self.reason.decode("iso-8859-1")
        else:
            reason = self.reason

        if 400 <= self.status_code < 500:
            http_error_msg = (
                f"{self.status_code} Client Error: {reason} for url: {self.url}"
            )

        elif 500 <= self.status_code < 600:
            http_error_msg = (
                f"{self.status_code} Server Error: {reason} for url: {self.url}"
            )

        if http_error_msg:
>           raise HTTPError(http_error_msg, response=self)
E           requests.exceptions.HTTPError: 404 Client Error: Not Found for url: https://occweb.cfa.harvard.edu/FOT/mission_planning/PRODUCTS/APPR_LOADS/2000/MAR

..\..\miniforge\envs\build\envs\ska3-matlab-2026.2rc2\Lib\site-packages\requests\models.py:1026: HTTPError
===================================================== short test summary info =====================================================
FAILED kadi/tests/test_occweb.py::test_get_occweb_dir_absolute - requests.exceptions.HTTPError: 404 Client Error: Not Found for url: https://occweb.cfa.harvard.edu/FOT/mission_planning/PRODUCT...
====================================== 1 failed, 216 passed, 1 xfailed in 292.52s (0:04:52) =======================================
(ska3-matlab-2026.2rc2)
jean@FLICKER CLANGARM64 ~/git/kadi (master)