Small changes for mindtouch

[benoit74]

Very simplified version of #211 since for now decided not to include an executor but rely on joblib (or another parallel processing lib) for now.

Changes:

• fix few type hints to be more precise
• add standard log format for displaying threads info

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (7b41b04) to head (f5f0412). Report is 3 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #213 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 38 38 Lines 2223 2224 +1 Branches 426 426 ========================================= + Hits 2223 2224 +1 ```

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