chore: ROOT-204: add LSE-only badges to endpoints in docs

[robot-ci-heartex]

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Please ensure that all linked upstream Pull Requests are merged before proceeding with this one.

• chore: ROOT-204: add LSE-only badges to endpoints in docs label-studio-sdk#632

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.69%. Comparing base (368732f) to head (a754d62).
⚠️ Report is 4 commits behind head on develop.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #8581       +/-   ##
============================================
+ Coverage    67.44%   79.69%   +12.25%     
============================================
  Files          780      237      -543     
  Lines        59913    21484    -38429     
  Branches     10154        0    -10154     
============================================
- Hits         40406    17122    -23284     
+ Misses       19504     4362    -15142     
+ Partials         3        0        -3     

Flag	Coverage Δ
lsf-e2e	?
lsf-integration	?
lsf-unit	?
pytests	79.69% <ø> (ø)

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