feat(matter): adds Arduino Matter Library documentation (#11984)

* feat(matter): adds Arduino Matter Library documentation

* fix(matter): title format

* fix(matter): fixes SmartButton path

Co-authored-by: Copilot <[email protected]>

* fix(matter): Fix typo in cooling temperature variable name

* fix(matter): Fix typo in parameter name for setCoolingHeatingSetpoints

* fix(matter): typo

Co-authored-by: Copilot <[email protected]>

* fix(matter): typo

Co-authored-by: Copilot <[email protected]>

* fix(matter): fixes title alligments

* fix(matter): examples url

* fix(matter): Fix swapped function arguments

* fix(matter): Add matter to libraries section

* ci(pre-commit): Apply automatic fixes

* fix(pre-commit): Fix spelling

---------

Co-authored-by: Copilot <[email protected]>
Co-authored-by: Me No Dev <[email protected]>
Co-authored-by: Lucas Saavedra Vaz <[email protected]>
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>

Author: 5 people

docs/en/libraries.rst

@@ -92,6 +92,17 @@ The Arduino ESP32 offers some unique APIs, described in this section:
 
     api/*
 
+Matter APIs
+-----------
+
+.. toctree::
+    :maxdepth: 1
+    :glob:
+
+    matter/matter
+    matter/matter_ep
+    matter/ep_*
+
 Zigbee APIs
 -----------
 

docs/en/matter/ep_color_light.rst

@@ -0,0 +1,212 @@
+################
+MatterColorLight
+################
+
+About
+-----
+
+The ``MatterColorLight`` class provides a color light endpoint for Matter networks with RGB color control using the HSV color model. This endpoint implements the Matter lighting standard for full-color lighting control.
+
+**Features:**
+* On/off control
+* RGB color control with HSV color model
+* State persistence support
+* Callback support for state and color changes
+* Integration with Apple HomeKit, Amazon Alexa, and Google Home
+* Matter standard compliance
+
+**Use Cases:**
+* RGB smart lights
+* Color-changing lights
+* Mood lighting
+* Entertainment lighting control
+* Smart home color automation
+
+API Reference
+-------------
+
+Constructor
+***********
+
+MatterColorLight
+^^^^^^^^^^^^^^^^
+
+Creates a new Matter color light endpoint.
+
+.. code-block:: arduino
+
+    MatterColorLight();
+
+Initialization
+**************
+
+begin
+^^^^^
+
+Initializes the Matter color light endpoint with optional initial state and color.
+
+.. code-block:: arduino
+
+    bool begin(bool initialState = false, espHsvColor_t colorHSV = {0, 254, 31});
+
+* ``initialState`` - Initial on/off state (default: ``false`` = off)
+* ``colorHSV`` - Initial HSV color (default: red 12% intensity HSV(0, 254, 31))
+
+This function will return ``true`` if successful, ``false`` otherwise.
+
+end
+^^^
+
+Stops processing Matter light events.
+
+.. code-block:: arduino
+
+    void end();
+
+On/Off Control
+**************
+
+setOnOff
+^^^^^^^^
+
+Sets the on/off state of the light.
+
+.. code-block:: arduino
+
+    bool setOnOff(bool newState);
+
+getOnOff
+^^^^^^^^
+
+Gets the current on/off state.
+
+.. code-block:: arduino
+
+    bool getOnOff();
+
+toggle
+^^^^^^
+
+Toggles the on/off state.
+
+.. code-block:: arduino
+
+    bool toggle();
+
+Color Control
+*************
+
+setColorRGB
+^^^^^^^^^^^
+
+Sets the color using RGB values.
+
+.. code-block:: arduino
+
+    bool setColorRGB(espRgbColor_t rgbColor);
+
+* ``rgbColor`` - RGB color structure with red, green, and blue values (0-255 each)
+
+getColorRGB
+^^^^^^^^^^^
+
+Gets the current color as RGB values.
+
+.. code-block:: arduino
+
+    espRgbColor_t getColorRGB();
+
+setColorHSV
+^^^^^^^^^^^
+
+Sets the color using HSV values.
+
+.. code-block:: arduino
+
+    bool setColorHSV(espHsvColor_t hsvColor);
+
+* ``hsvColor`` - HSV color structure with hue (0-360), saturation (0-254), and value/brightness (0-254)
+
+getColorHSV
+^^^^^^^^^^^
+
+Gets the current color as HSV values.
+
+.. code-block:: arduino
+
+    espHsvColor_t getColorHSV();
+
+Event Handling
+**************
+
+onChange
+^^^^^^^^
+
+Sets a callback for when any parameter changes.
+
+.. code-block:: arduino
+
+    void onChange(EndPointCB onChangeCB);
+
+The callback signature is:
+
+.. code-block:: arduino
+
+    bool onChangeCallback(bool newState, espHsvColor_t newColor);
+
+onChangeOnOff
+^^^^^^^^^^^^^
+
+Sets a callback for on/off state changes.
+
+.. code-block:: arduino
+
+    void onChangeOnOff(EndPointOnOffCB onChangeCB);
+
+onChangeColorHSV
+^^^^^^^^^^^^^^^^
+
+Sets a callback for color changes.
+
+.. code-block:: arduino
+
+    void onChangeColorHSV(EndPointRGBColorCB onChangeCB);
+
+updateAccessory
+^^^^^^^^^^^^^^^
+
+Updates the physical light state using current Matter internal state.
+
+.. code-block:: arduino
+
+    void updateAccessory();
+
+Operators
+*********
+
+bool operator
+^^^^^^^^^^^^^
+
+Returns current on/off state.
+
+.. code-block:: arduino
+
+    operator bool();
+
+Assignment operator
+^^^^^^^^^^^^^^^^^^^
+
+Turns light on or off.
+
+.. code-block:: arduino
+
+    void operator=(bool state);
+
+Example
+-------
+
+Color Light
+***********
+
+.. literalinclude:: ../../../libraries/Matter/examples/MatterColorLight/MatterColorLight.ino
+    :language: arduino