fix Alice/bob signed context for clear3()

[rouzwelt]

Motivation

Solution

Checks

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• made this PR as small as possible
• unit-tested any new functionality
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Summary by CodeRabbit

• Bug Fixes
  • Corrected the order of signed order data used during orderbook simulation, so “clear” calls now match the expected input format.
  • Updated test expectations to reflect the corrected argument order.
• Chores
  • Reformatted the Nix flake configuration without functional changes.

[coderabbitai]

Walkthrough

Reorders signedContext arguments in V6 and V5 clear calldata construction, updates the matching test expectation, and reformats the Nix flake outputs block without changing its logic.

Changes

SignedContext Ordering Fix

Layer / File(s)	Summary
Reorder clear calldata arguments src/core/modes/intra/simulation.ts	Both order calldata builders now pass the counterparty’s signedContext before the order’s own signedContext.
Update test expectation src/core/modes/intra/simulation.test.ts	The expected clear3 arguments now reflect the reordered signedContext values.

Nix Flake Formatting

Layer / File(s)	Summary
Reformat flake outputs flake.nix	Reformats the outputs attribute set and related indentation without changing inputs or logic.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• rainlanguage/rain.solver#456: Updates related intra-order clear2/clear3 calldata handling and signed context usage.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: fixing Alice/bob signed context order for clear3().

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch 2026-07-07-fix-clear-signed-context

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