* **Refactor**
* GPIO subsystem moved to a descriptor-based model for per-pin ownership and runtime pin management; many platform drivers now acquire/release descriptors.
* Device trees and drivers now use GPIO phandle-style pin specifications across all boards and all drivers.
* **Behavior**
* Device list now encodes per-device status (ok/disabled); boot will skip disabled devices accordingly.
* **Deprecation**
* Legacy GPIO HAL marked deprecated and replaced with descriptor-based interfaces.
* **Chores**
* Bindings and platform configs updated to the new GPIO pin-spec format.
* **New Features**
* Added a GPIO hardware abstraction layer for reading pin levels from applications.
* Applications can now query the number of available GPIO pins so they can adapt to different devices.
* **Chores**
* Integrations updated so GPIO capabilities are discoverable and exported to running applications.
Devictree changes:
- Create DTS files for all remaining devices
- Update corresponding `devicetree.yaml`
- Remove `i2c` configuration from corresponding `tt::hal::Configuration`
Apps & HAL:
- Removed I2C Settings (we'll make a new one later after I rework that part of the HAL)
- Delete TactilityC GPIO and I2C functionality
- Delete Related SystemEvent types
- Refactor `tt::hal::i2c` to only use `struct Device*` wrapping
Scripting:
- Fix DevicetreeCompiler boolean parsing
- Create `build-all.py`
- Expose HAL Configuration's `UiScale`
- Updated docs
- Fix for `tt_timer_alloc()`
- Changed `enum class` to regular C `enum`
- Renamed enums (add prefix)
- Include `<stdbool.h>` where needed
