Fix reuse of NOX::Nln::Adapter by resetting state

[maxiludwig]

Description and Context

• Fix NOX::Nln::Adapter transient reuse by resetting solver state with the current initial guess before each solve() call (nox_solver_->reset(*x_nox_)).
• Previously, consecutive timesteps could be reported as already converged because the solver carried over convergence state from the prior timestep.
• Add regression test SolverNonlinNoxAdapter.RepeatedSolveReinitializesState to verify two consecutive solve() calls on the same adapter re-run and converge to updated targets.

Related Issues and Pull Requests

#1807

[Copilot]

Pull request overview

Fixes incorrect reuse behavior in NOX::Nln::Adapter where consecutive solve() calls could incorrectly report convergence due to retained solver state, by resetting the NOX solver with the current initial guess before each solve.

Changes:

• Reset NOX solver state at the start of NOX::Nln::Adapter::solve() via nox_solver_->reset(*x_nox_).
• Add a regression test to ensure repeated solve() calls on the same adapter re-run iterations and converge to updated targets.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/solver_nonlin_nox/4C_solver_nonlin_nox_adapter.cpp	Resets solver state before each solve() to prevent stale convergence status across reuses.
src/solver_nonlin_nox/tests/4C_solver_nonlin_nox_adapter_test.cpp	Adds regression coverage for repeated solves updating the target and reinitializing solver state.