Add supplier information to KiCad part exports

[barisgit]

• Include supplier name and part numbers from order details in KiCad exports
• Handle multiple suppliers with sequential numbering (Supplier 2, Supplier 3, etc.)
• Include both active and obsolete order details for comprehensive supplier info
• Add null checks to prevent errors when supplier or part number is missing

[codecov]

Codecov Report

Attention: Patch coverage is 8.33333% with 11 lines in your changes missing coverage. Please review.

Project coverage is 59.84%. Comparing base (c445359) to head (e103480).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
src/Services/EDA/KiCadHelper.php	8.33%	11 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #955      +/-   ##
============================================
+ Coverage     59.73%   59.84%   +0.11%     
- Complexity     6036     6042       +6     
============================================
  Files           529      529              
  Lines         20588    20600      +12     
============================================
+ Hits          12298    12329      +31     
+ Misses         8290     8271      -19     

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[jbtronics]

Thank you.