Migrate compatible Playwright tests from prod to local environment

[Khai5]

Fixing issues

• [webapp] migrate playwright prod tests to local where possible #19
  • Separated local and production tests
  • Identified and migrated compatible production tests to local environment with minor adjustments
  • Added fixtures.ts for test optimization
• [test] add new automated tests for gemma-scope steering higher strengths #64
  • Added gemmascope production test for max strength multiplier

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 8.28%. Comparing base (b51a175) to head (589ad4d).
Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##            main     #72      +/-   ##
========================================
- Coverage   8.30%   8.28%   -0.03%     
========================================
  Files        116     116              
  Lines      16160   16206      +46     
  Branches     350     350              
========================================
  Hits        1342    1342              
- Misses     14807   14853      +46     
  Partials      11      11              

Flag	Coverage Δ
autointerp	100.00% <ø> (ø)
inference	37.77% <ø> (ø)
webapp	5.38% <ø> (-0.02%)	⬇️

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