fix: resample invalid profile parameters

[Jammy2211]

Summary

Introduce a profile-validation exception that remains a conventional ValueError for direct API users while also being a PyAutoFit FitException.

Apply it to scale-radius, Sersic-index, ellipticity-component, and redshift guards so physically invalid non-linear-search candidates are rejected through the existing resample path instead of terminating the search.

Add regression coverage for both the dual exception contract and PyAutoFit's returned resample figure of merit.

API Changes

Invalid concrete profile parameters now raise autogalaxy.exc.ModelParameterException, a subclass of both ValueError and autofit.exc.FitException. Existing ValueError handling remains compatible; model-fitting code now rejects these candidates through PyAutoFit's established resampling behavior.
See full details below.

Test Plan

• pytest -q -s test_autogalaxy/profiles/test_validate.py (41 passed)
• pytest -q -s test_autogalaxy (1090 passed, 4 skipped)
• python -m pytest test_autogalaxy/ -x -s shipping gate

Full API Changes (for automation & release notes)

Added

• autogalaxy.exc.ModelParameterException — reports physically invalid concrete model parameters while satisfying both direct-user and non-linear-search exception contracts.

Changed Behaviour

• autogalaxy.profiles.validate.validate_scale_radius() — invalid concrete values raise ModelParameterException instead of bare ValueError.
• autogalaxy.profiles.validate.validate_sersic_index() — invalid concrete values raise ModelParameterException instead of bare ValueError.
• autogalaxy.profiles.validate.validate_ell_comps() — invalid concrete values raise ModelParameterException instead of bare ValueError.
• autogalaxy.profiles.validate.validate_redshift() — invalid concrete values raise ModelParameterException instead of bare ValueError.

Migration

• No migration is required for callers catching ValueError; ModelParameterException remains a subclass of it.
• PyAutoFit searches now treat these validation failures as rejected/resampled candidates.

Generated by the PyAutoLabs agent workflow.

[Jammy2211]

Workspace PR: PyAutoLabs/autogalaxy_workspace#209

[Jammy2211]

Workspace PR: PyAutoLabs/autolens_workspace#483

[Jammy2211]

Workspace PR: PyAutoLabs/autogalaxy_workspace_test#104

[Jammy2211]

Workspace PR: PyAutoLabs/autolens_workspace_test#256