added use case nb to the examples

[adgianv]

Description

adds a use case example to sieves running a pipeline on the CrisisNLP dataset

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #189   +/-   ##
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  Coverage   93.26%   93.26%           
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  Files          77       77           
  Lines        3918     3918           
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  Hits         3654     3654           
  Misses        264      264           

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[rmitsch]

Looking good for a first draft! I couldn't replicate your issues, but made several smaller changes:

• Use strict_mode everywhere to not suppress exception
• Use OpenRouter and Gemini Flash 2.5 instead of GPT 4.1 (if you want to use OpenAI these days, use GPT-5(-nano) - better, cheaper, faster than GPT-4.1).
• Set batch size to 10 to better reflect progress
• Did some renaming of directory, file to better fit into the examples/ dir structure

There's some cleanup to do, but let's focus on finishing the draft first. What would be great: can we render a world map(s) that visualizes catastrophes of different types? This would be a great wrap-up to tell a narrative and convey the results of the analysis more effectively.