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   +/-   ##
=======================================
  Coverage   92.79%   92.80%           
=======================================
  Files          63       63           
  Lines        3274     3278    +4     
=======================================
+ Hits         3038     3042    +4     
  Misses        236      236           

Files with missing lines	Coverage Δ
sieves/pipeline/core.py	92.24% <100.00%> (+0.27%)	⬆️

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[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.