feat(heater): Add multi-instance support for heaters (#26325)

* heater: add multi-instance support, refactor parameter handling, remove legacy params file

This change introduces multi-instance heater support to allow independent temperature control for multiple IMUs.

Main changes:
- Add support for multiple heater instances
- Refactor parameter handling to use per-instance parameters
- Remove the legacy parameter file and migrate to the updated parameter structure

This improves scalability and makes heater configuration consistent across setups with multiple sensors.

* Refactor heater configuration across multiple boards

- Updated heater GPIO definitions to introduce a new naming convention for better clarity and consistency.
- Replaced `GPIO_HEATER_OUTPUT` with `GPIO_HEATER1_OUTPUT` and adjusted the corresponding output enable macros.
- Changed parameter names from `SENS_TEMP_ID` to `HEATER1_IMU_ID` in various board default configurations to reflect the new heater setup.
- Ensured all affected board configurations are updated to maintain functionality with the new heater definitions.

* heater: fix missing HEATER1_OUTPUT_EN control

* heater: fix more missing HEATER1_OUTPUT_EN control

* heater: tidy config, docs, and instance handling

- Remove unused controller period member and use CONTROLLER_PERIOD_DEFAULT
- Improve HEATER${i}_IMU_ID description and instance-related logging/behavior
- Add a guard when HEATER_NUM exceeds HEATER_MAX_INSTANCES

Note: drop intermediate/reverted change around the 'celsius' spelling.

* heater: refactor constructor to remove unused parameter and add instance name function

- Remove unused ModuleParams argument from Heater constructor
- Add heater_instance_name() helper to provide per-instance work queue task names
- Use instance-specific parameter lookup (HEATER{n}_*) during initialization

Use heater_instance_name() to label each instance (heater_1/2/3) in work queue.
Also drop unused ModuleParams argument from constructor and keep per-instance
parameter handle lookup in initialization.

* format

* board: update GPIO configuration for multiple heater instances, add HEATER_NUM for boards using PX4IO

* heater: update heater control to use HEATER1_OUTPUT_EN when using PX4IO for consistency

* heater: add a TODO for px4io multi-instance

* heater: update missing GPIO_HEATER1_OUTPUT in  sky-drones

* heater: fix multiple newlines at EOF (resolve CI check failure)

* heater: switch to PublicationMulti for heater_status and log multi-instance

- Changed _heater_status_pub from Publication to PublicationMulti to support independent per-instance publications without overwriting.
- Updated logged_topics.cpp to use add_optional_topic_multi("heater_status")

This fixes the issue where multiple heater instances were writing to the same heater_status topic, causing data overwriting and incorrect update rates in logs.

---------

Co-authored-by: Jacob Dahl <dahl.jakejacob@gmail.com>
Co-authored-by: Jacob Dahl <37091262+dakejahl@users.noreply.github.com>

boards/atl/mantis-edu/src/board_config.h

@@ -121,7 +121,9 @@
 #define BOARD_REAR_LED_MASK  (1 << 1) | (1 << 2)
 
 /* HEATER */
-#define GPIO_HEATER_OUTPUT   /* PA7  T14CH1 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTA|GPIO_PIN7)
+#define GPIO_HEATER_OUTPUT
+#define HEATER_NUM 	1
+#define GPIO_HEATER1_OUTPUT  /* PA7  T14CH1 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTA|GPIO_PIN7)
 
 #define BOARD_HAS_LED_PWM              1
 #define BOARD_LED_PWM_DRIVE_ACTIVE_LOW 1
@@ -182,7 +184,7 @@
 		PX4_ADC_GPIO,                     \
 		GPIO_HW_REV_DRIVE,                \
 		GPIO_HW_VER_DRIVE,                \
-		GPIO_HEATER_OUTPUT,               \
+		GPIO_HEATER1_OUTPUT,              \
 		GPIO_VDD_3V3_SD_CARD_EN,          \
 		GPIO_OTGFS_VBUS                   \
 	}