Remove LRC from API

[MrCreosote]

The presence of LRC in the sites endpoint and job submit documentation is confusing AI agents. Remove from the submission API and sites endpoint, but leave elsewhere to prevent errors when loading previously run jobs.

[codecov]

Codecov Report

❌ Patch coverage is 85.71429% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 53.34%. Comparing base (cbcdfa0) to head (8a66d99).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
cdmtaskservice/jobflows/jaws_flows_provider.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #608      +/-   ##
==========================================
+ Coverage   53.29%   53.34%   +0.05%     
==========================================
  Files          69       69              
  Lines        6003     6006       +3     
==========================================
+ Hits         3199     3204       +5     
+ Misses       2804     2802       -2     

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