feat(rust!, python): Add context trace to LazyFrame conversion errors

[ritchie46]

Debuggin LazyFrames just got a lot easier:

[codspeed-hq]

CodSpeed Performance Report

Merging #15761 will not alter performance

_{Comparing errors (ddd8f52) with main (0c2783a)}

Summary

✅ 22 untouched benchmarks

[codecov]

Codecov Report

Attention: Patch coverage is 68.75000% with 30 lines in your changes are missing coverage. Please review.

Project coverage is 81.35%. Comparing base (0c2783a) to head (6caab1d).
Report is 1 commits behind head on main.

❗ Current head 6caab1d differs from pull request most recent head ddd8f52. Consider uploading reports for the commit ddd8f52 to get more accurate results

Files	Patch %	Lines
...src/logical_plan/conversion/dsl_plan_to_ir_plan.rs	30.00%	21 Missing ⚠️
crates/polars-error/src/lib.rs	88.46%	6 Missing ⚠️
py-polars/src/error.rs	75.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15761      +/-   ##
==========================================
- Coverage   81.35%   81.35%   -0.01%     
==========================================
  Files        1379     1379              
  Lines      176619   176700      +81     
  Branches     2544     2542       -2     
==========================================
+ Hits       143686   143746      +60     
- Misses      32449    32472      +23     
+ Partials      484      482       -2     

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