pytest log10 updates to include url to evaluation page

[wenzhe-log10]

• add link to docs.log10.io
• add url to log10 evaluations page
• update create test run function, returning the org slug

example output and note the Log10 Evaluation URL: at the end:

========================================= test session starts ==========================================
platform darwin -- Python 3.12.2, pytest-8.3.3, pluggy-1.5.0
rootdir: test_log10_eval
plugins: metadata-3.1.1, anyio-4.6.0, log10-io-0.14.0
collected 1 item

test_example.py F                                                                                [100%]

=============================================== FAILURES ===============================================
_____________________________________________ test_example _____________________________________________

    def test_example():
>       assert 0 == 1
E       assert 0 == 1

test_example.py:4: AssertionError
========================================== Log10 Eval Report ===========================================
Log10 Eval is enabled.
Test run: tests-06aedd36-69af-45bb-918a-b1cab4e79298
Log10 Evaluation URL: log10.io/app/test-org/evaluations?id=06aedd36-69af-45bb-918a-b1cab4e79298
Report saved to: test_log10_eval/.pytest_log10_eval_reports/tests-06aedd36-69af-45bb-918a-b1cab4e79298.report.json
Report successfully uploaded to Log10
======================================= short test summary info ========================================
FAILED test_example.py::test_example - assert 0 == 1
========================================== 1 failed in 27.13s ==========================================