Implementation of corrections for projection effects [version:1.0.11]

[eduardojsbarroso]

This PR adds support for projection effects in CROW, including a Costanzi-style projected richness model and an optional projection-induced lensing profile correction for stacked DeltaSigma predictions.

Main Changes:

• Added a new crow.cluster_modules.projection_effects module.
• Implemented CostanziBaseModel, CostanziBinned, and CostanziUnBinned for projected observed-richness probabilities.
• Added CostanziLensingBias / bsel for multiplicative selection-bias corrections to stacked DeltaSigma profiles.
• Extended binned recipes to optionally apply lensing profile corrections after stack integration.
• Added projection-effect grid construction and caching to GridBinnedClusterRecipe.
• Added a projection tutorial notebook: notebooks/run_projection.ipynb.
• Added and expanded tests for projection probabilities, projected counts, grid caching, and DeltaSigma correction behavior.

Implementation Notes:

• The richness projection model follows the Costanzi projection-effect formalism.
• The lensing profile correction is explicitly restricted to DeltaSigma predictions and raises an error for reduced shear.
• Radius conversion for the lensing correction is explicit: either comoving Mpc/h input or physical Mpc converted using reference redshift and h.

[codecov]

Codecov Report

❌ Patch coverage is 96.53179% with 18 lines in your changes missing coverage. Please review.
✅ Project coverage is 97.99%. Comparing base (82846b4) to head (2a3bdc0).

Files with missing lines	Patch %	Lines
...cluster_modules/projection_effects/lensing_bias.py	83.60%	10 Missing ⚠️
crow/recipes/binned_grid.py	87.09%	4 Missing ⚠️
crow/recipes/binned_parent.py	88.23%	2 Missing ⚠️
...row/cluster_modules/projection_effects/costanzi.py	99.31%	1 Missing ⚠️
tests/test_recipe_binned_counts.py	98.59%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #88      +/-   ##
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- Coverage   98.41%   97.99%   -0.42%     
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  Files          28       32       +4     
  Lines        1826     2341     +515     
  Branches       60       89      +29     
==========================================
+ Hits         1797     2294     +497     
- Misses         29       47      +18     

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