feat : wxo oauth sso support

[HimavarshaVS]

Summary

Expose WXO OAuth tokens as global variables

• Modified VariableService to automatically scan environment for OAuth tokens
• Tokens ending with '_access_token' are auto-loaded as global variables
• Creates both raw and Bearer-formatted versions for convenience
• Enables automatic OAuth token injection for WXO connections

When WXO injects environment variables like 'github_oauth_access_token',
they become available as global variables in Langflow flows without
requiring any additional components or configuration.

Example usage:

• Raw token: service.get_variable('github_oauth_access_token')
• Bearer token: service.get_variable('github_oauth_bearer_token')"

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/wxo-oauth-sso-support

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[github-actions]

✅ Migration Validation Passed

All migrations follow the Expand-Contract pattern correctly.

[github-actions]

Build successful! ✅
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[codecov]

Codecov Report

❌ Patch coverage is 33.33333% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 53.17%. Comparing base (9b11f5a) to head (401c9c1).

Files with missing lines	Patch %	Lines
src/lfx/src/lfx/services/variable/service.py	33.33%	6 Missing and 2 partials ⚠️

❌ Your patch check has failed because the patch coverage (33.33%) is below the target coverage (40.00%). You can increase the patch coverage or adjust the target coverage.
❌ Your project check has failed because the head coverage (49.73%) is below the target coverage (60.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@                Coverage Diff                 @@
##           release-1.10.0   #12917      +/-   ##
==================================================
- Coverage           53.87%   53.17%   -0.70%     
==================================================
  Files                2051     2051              
  Lines              187230   187242      +12     
  Branches            26578    28123    +1545     
==================================================
- Hits               100863    99563    -1300     
- Misses              85256    86567    +1311     
- Partials             1111     1112       +1     

Flag	Coverage Δ
backend	57.12% <ø> (+0.03%)	⬆️
frontend	53.03% <ø> (-1.03%)	⬇️
lfx	49.73% <33.33%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/lfx/src/lfx/services/variable/service.py	78.04% <33.33%> (-18.51%)	⬇️

... and 171 files with indirect coverage changes

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[github-actions]

Frontend Unit Test Coverage Report

Coverage Summary

Lines	Statements	Branches	Functions
	36.22% (42132/116296)	67.85% (5785/8526)	36.27% (970/2674)

Unit Test Results

Tests	Skipped	Failures	Errors	Time
4095	0 💤	0 ❌	0 🔥	8m 59s ⏱️