Feature/mesh refactor

[Jammy2211]

This pull request updates the handling of inversion settings across the codebase, standardizing the use of a unified Settings object in place of the previous SettingsInversion. It also updates import paths for mesh-related classes to reflect a new module organization. These changes improve code consistency and simplify configuration management for inversion-related operations.

Standardization of inversion settings:

• Replaced all uses of SettingsInversion with the new unified Settings object across the codebase, including function signatures, class attributes, and documentation in files such as fit_imaging.py, fit_interferometer.py, subhalo.py, dataset.py, fit_imaging.py, and analysis.py. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27]

Import path updates for mesh classes:

• Updated import paths for mesh-related classes to use the new autoarray.inversion.pixelization.mesh_grid module, replacing old references to autoarray.structures.mesh.

General import and naming consistency:

• Changed imports and references from SettingsInversion to Settings in autolens/__init__.py and related files for consistency.

These changes ensure a unified approach to inversion settings and reflect recent structural updates in the codebase.

[Copilot]

Pull request overview

This PR refactors inversion configuration and mesh-related imports by standardizing on a unified Settings object (replacing SettingsInversion) and updating references accordingly across runtime code, tests, and documentation.

Changes:

• Replaced settings_inversion / SettingsInversion usage with settings / Settings across fit, analysis, and aggregator entry points.
• Updated regularization naming in tests/config/docs (e.g. AdaptiveBrightness* → Adapt*) and adjusted tutorial/doc references.
• Adjusted public imports in autolens/__init__.py, including the new Settings import path and mesh class import paths.

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
test_autolens/imaging/test_simulate_and_fit_imaging.py	Updates FitImaging calls to use settings=al.Settings(...) and renames a regularization class used in tests.
test_autolens/config/priors/regularization.yaml	Updates prior config key to the renamed regularization class (Adapt).
test_autolens/analysis/test_analysis.py	Updates analysis construction to use unified settings.
docs/howtolens/chapter_4_pixelizations.rst	Updates tutorial link to renamed notebook path.
docs/api/pixelization.rst	Updates API docs to list Adapt* regularizations and Settings instead of SettingsInversion.
autolens/util/init.py	Removes an outdated mesh utility import consistent with module re-organization.
autolens/lens/to_inversion.py	Renames inversion settings plumbing to settings throughout tracer→inversion interface.
autolens/interferometer/model/analysis.py	Passes unified settings into FitInterferometer creation.
autolens/interferometer/fit_interferometer.py	Renames constructor parameter/attribute to settings and forwards it to inversion plumbing.
autolens/imaging/model/analysis.py	Passes unified settings into FitImaging creation.
autolens/imaging/fit_imaging.py	Renames constructor parameter/attribute to settings and forwards it to inversion plumbing.
autolens/analysis/analysis/dataset.py	Renames analysis dataset-level inversion settings to unified settings.
autolens/aggregator/subhalo.py	Renames aggregator wrapper field to unified settings.
autolens/aggregator/fit_interferometer.py	Loads/overrides unified settings from aggregator DB values and forwards to fit construction.
autolens/aggregator/fit_imaging.py	Loads/overrides unified settings from aggregator DB values and forwards to fit construction.
autolens/init.py	Updates public exports/import paths for Settings and mesh classes; removes some mapper re-exports.

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[Copilot]

settings may be None here (many tests and callers construct FitImaging(...) without passing it), but it is passed into AbstractFitInversion.__init__ before being defaulted. This changes behavior vs the previous SettingsInversion() default and can break initialization if AbstractFitInversion expects a Settings instance. Create a default aa.Settings() (or equivalent) before calling AbstractFitInversion.__init__, and then pass that non-None object through consistently.

[Copilot]

settings defaults to None and is passed into AbstractFitInversion.__init__. Many call sites construct FitInterferometer(...) without providing settings, so this can be None at runtime and diverges from the old SettingsInversion() default. Default settings to a concrete aa.Settings() (or equivalent) before it’s used/forwarded, and store that on self.settings.

[Copilot]

settings can be None by default and is forwarded to the parent AbstractToInversion via super().__init__(..., settings=settings, ...). Previously a concrete settings object was always provided (via SettingsInversion()), so this may now propagate None into downstream inversion setup. Consider defaulting settings to aa.Settings() before calling super().__init__ to preserve prior behavior and avoid None-handling throughout the inversion pipeline.

[Copilot]

autolens.__init__ no longer re-exports a Mapper symbol, but docs/api/pixelization.rst still lists Mapper under .. currentmodule:: autolens autosummary. This will break docs/autosummary generation (and is also a public API change). Either re-export the appropriate Mapper factory/type from autoarray again, or update the docs to point at the new import location / remove the Mapper entry.

Suggested change

	from autoarray.inversion.pixelization.mappers.abstract import AbstractMapper
	from autoarray.inversion.pixelization.mappers.abstract import AbstractMapper
	from autoarray.inversion.pixelization.mappers.mapper import Mapper