Expose EditingContextResolver::contextChanged to Python addons via
two-layer design:
C++ layer:
- SDKRegistry::onContextChanged() stores callbacks and lazily connects
to the Qt signal on first registration
- pybind11 binding kcsdk.on_context_changed() wraps Python callables
with GIL-safe invocation
Python layer:
- kindred_sdk.on_context_enter(context_id, callback) subscribes to
context activation ("*" wildcard supported)
- kindred_sdk.on_context_exit(context_id, callback) subscribes to
context deactivation
- Internal tracking of previous context derives enter/exit transitions
- Emits context.enter / context.exit on the SDK event bus
Closes#381
Add mods/sdk/ with the kindred_sdk Python package providing a stable
API layer for addon integration with Kindred Create platform features.
Modules:
- context: editing context/overlay registration wrappers
- theme: YAML-driven palette system (Catppuccin Mocha)
- origin: FileOrigin registration helpers
- dock: deferred dock panel registration
- compat: version detection utilities
The SDK loads at priority 0 (before all other addons) via the existing
manifest-driven loader. Theme colors are defined in a single YAML
palette file instead of hardcoded Python dicts, enabling future theme
support and eliminating color duplication across addons.
Closes#249
