Function solveLinearSafe

solveLinearSafe(
A: number[][],
b: number[],
): { singular: boolean; solution: number[] | null }
Safe version of solveLinear that detects and reports singular matrices.
Parameters
- A: number[][]
- b: number[]
Returns { singular: boolean; solution: number[] | null }
- singular: true if the matrix is near-singular (no reliable solution)
  - solution: the solution vector if non-singular, null if singular
- Defined in packages/core/src/math.ts:58