Improve CI platform compatibility checking in tests

- Add CI platform validation test for reference platform
- Update CI_PLATFORMS list to include Python 3.13
- Fix platform detection and logging functions
- Improve print_platform_info output
- Clean up unused code and docstrings
- Enhance test reference updating workflow

Author: noahho

tests/README.md

@@ -6,7 +6,6 @@ This directory contains tests for the TabPFN project.
 
 - `test_classifier_interface.py`: Tests for the TabPFNClassifier interface
 - `test_regressor_interface.py`: Tests for the TabPFNRegressor interface 
-- `test_text_na_handling.py`: Tests for text and NA value handling
 - `test_utils.py`: Tests for utility functions
 - `test_consistency.py`: Tests to ensure prediction consistency across code changes
 

tests/reference_predictions/inconsistency_test_predictions.json

@@ -0,0 +1,14 @@
+[
+  [
+    0.5958165526390076,
+    0.4041834771633148
+  ],
+  [
+    0.5858913064002991,
+    0.4141086935997009
+  ],
+  [
+    0.5205028057098389,
+    0.47949716448783875
+  ]
+]