docs: add more real-world example scripts

Description

Following our efforts to improve the documentation and the introduction of the new Examples page, we want to expand our gallery of practical, real-world watchdog configurations.

We would like to invite first-time contributors to add clean, executable example Python scripts for common use cases.

How to contribute:

1. Choose/Propose a Use Case:
2. Add a Python script: Create a new Python script under docs/source/examples/ (e.g. docs/source/examples/renaming.py). Make sure it is self-contained and clean.
3. Link to the docs: Open docs/source/examples.rst and include your script using the literalinclude directive:

   .. literalinclude:: examples/renaming.py
      :language: python
      :linenos:
   
   

4. Register in tests: Open tests/test_examples.py and add your example script name to the list of tested files so that it gets automatically tested in CI/CD.
5. Open a PR!