CHORE: Cleanup executors and simulation service

[mberz]

Proposed changes

• Remove trailing whitespaces
• Remove unused imports
• Fix indentation
• Use f-strings only where relevant

[Copilot]

Pull request overview

This PR focuses on cleanup and formatting improvements across the simulation service and executor implementations to reduce unused dependencies and improve code readability/consistency.

Changes:

• Reorganized imports and removed several unused imports across simulation and executor modules.
• Applied whitespace/indentation cleanups and minor formatting consistency fixes.
• Consolidated discovery service imports and standardized some string formatting.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
app/services/simulation_service.py	Cleans up imports and formatting; refactors discovery imports and various whitespace/indent fixes.
app/services/executors/local_executor.py	Removes unused imports and trailing whitespace/indentation cleanup.
app/services/executors/cloud_executor.py	Import reordering/cleanup plus whitespace and minor formatting adjustments.

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.