Feature: Problem as symbolic.Environment interface

[kwesiRutledge]

Introducing this new feature which allows the problem.OptimizationProblem pointer anywhere that a symbolic.Environment interface is expected. This should resolve the issues that we were seeing in the simplex solver with substituting the wrong variables.

[Copilot]

Pull Request Overview

This PR implements the symbolic.Environment interface for the OptimizationProblem type, enabling it to be used wherever a symbolic environment is expected. This change aims to resolve variable substitution issues in the simplex solver.

• Implements three methods (GetName, TrackVariable, AllTrackedVariables) to satisfy the symbolic.Environment interface
• Updates variable creation to associate variables with their environment (op)
• Simplifies variable matrix creation by passing the environment to the constructor
• Updates the SymbolicMath.go dependency to support the new interface requirements

Reviewed Changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 1 comment.

File	Description
problem/optimization_problem.go	Implements symbolic.Environment interface methods and updates variable creation to set Environment field
go.mod	Updates SymbolicMath.go dependency to version that supports Environment interface

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[codecov]

Codecov Report

❌ Patch coverage is 83.87097% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 87.29%. Comparing base (0214315) to head (1f6ffeb).
⚠️ Report is 13 commits behind head on main.

Files with missing lines	Patch %	Lines
problem/optimization_problem.go	83.87%	4 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #29      +/-   ##
==========================================
+ Coverage   86.76%   87.29%   +0.52%     
==========================================
  Files          27       35       +8     
  Lines        3687     4194     +507     
==========================================
+ Hits         3199     3661     +462     
- Misses        440      476      +36     
- Partials       48       57       +9     

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