docs(api): sync light profile reference with PyAutoGalaxy

Add the previously missing Linear, Operated, and Basis autosummary
sections to docs/api/light.rst and add the one-line description to the
Standard section. After this change the file is byte-identical to
PyAutoGalaxy/docs/api/light.rst.

The SersicMultipole and GaussianMultipole profiles merged via #515
(and their PyAutoGalaxy linear variants) are exposed on al.lp_linear.*
but previously had no entry on the PyAutoLens API reference page. This
brings the docs in line.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Author: Jammy2211

docs/api/light.rst

@@ -5,6 +5,8 @@ Light Profiles
 Standard [``ag.lp``]
 --------------------
 
+Standard parametric light profiles whose ``intensity`` is a free parameter of the model.
+
 .. currentmodule:: autogalaxy.profiles.light.standard
 
 .. autosummary::
@@ -29,4 +31,69 @@ Standard [``ag.lp``]
    Chameleon
    ChameleonSph
    ElsonFreeFall
-   ElsonFreeFallSph
+   ElsonFreeFallSph
+
+Linear [``ag.lp_linear``]
+--------------------------
+
+Linear light profiles whose ``intensity`` is not a free parameter but is instead solved
+analytically via a linear matrix inversion during each likelihood evaluation.  This allows
+many profiles to be combined efficiently without exploding the non-linear parameter space.
+
+.. currentmodule:: autogalaxy.profiles.light.linear
+
+.. autosummary::
+   :toctree: _autosummary
+   :template: custom-class-template.rst
+   :recursive:
+
+   Gaussian
+   GaussianSph
+   GaussianMultipole
+   Sersic
+   SersicSph
+   SersicMultipole
+   Exponential
+   ExponentialSph
+   DevVaucouleurs
+   DevVaucouleursSph
+   SersicCore
+   SersicCoreSph
+   ExponentialCore
+   ExponentialCoreSph
+
+Operated [``ag.lp_operated``]
+------------------------------
+
+Operated light profiles that represent emission which has already had an instrument
+operation (e.g. PSF convolution) applied to it.  The ``operated_only`` parameter on
+fitting classes controls whether these profiles are included or excluded from a given
+image computation.
+
+.. currentmodule:: autogalaxy.profiles.light.operated
+
+.. autosummary::
+   :toctree: _autosummary
+   :template: custom-class-template.rst
+   :recursive:
+
+   Gaussian
+   Moffat
+   Sersic
+
+Basis [``ag.lp_basis``]
+------------------------
+
+A ``Basis`` groups a collection of light profiles (e.g. a Multi-Gaussian Expansion or
+shapelet decomposition) so that they behave as a single profile in the model.  When the
+constituent profiles are ``LightProfileLinear`` instances their intensities are all solved
+simultaneously via a single inversion.
+
+.. currentmodule:: autogalaxy.profiles.basis
+
+.. autosummary::
+   :toctree: _autosummary
+   :template: custom-class-template.rst
+   :recursive:
+
+   Basis