Fix prediction-markets tests, I

[maltekliemann]

What does it do?

• Tests admin_move_market_to_resolved with disputed markets.
• Removes test it_resolves_a_disputed_market involving simple_disputes.
• Moves it_resolves_a_disputed_court_market to integration tests.
• Uses more granular origins for testing.
• Fixes wrong use of origins in benchmarks.
• Adds missing tests for buy_complete_set.
• Adds missing tests for create_market.

What important points should reviewers know?

Is there something left for follow-up PRs?

Remove all other TODOs. Doing that in separate PRs to avoid bloating this one.

What alternative implementations were considered?

Are there relevant PRs or issues?

References

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.82%. Comparing base (ff6628c) to head (9e54353).
Report is 2 commits behind head on main.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1265      +/-   ##
==========================================
+ Coverage   91.78%   91.82%   +0.04%     
==========================================
  Files         190      190              
  Lines       34493    34682     +189     
==========================================
+ Hits        31658    31847     +189     
  Misses       2835     2835              

Flag	Coverage Δ
tests	91.82% <100.00%> (+0.04%)	⬆️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.