AlexaCapability replaces the header-only AlexaInterface as what a device holds: 116 bytes with fixed places for
3 names, 4 action mappings and 2 state mappings, no std::vector or std::string. AlexaInterface and AlexaActions
stay as 1.x names; the five examples compile unchanged and announce the same bytes.
addCapability(row, instance) adds several capabilities of one generic controller. An instanced interface without
an instance or a name, an instance or semantics on an interface that takes none, and a full store are refused
with an ERROR line that says what to change.
PlaybackController and WakeOnLANController announce "properties": {} (AIF_EMPTY_PROPERTIES).
basicLight on a D1 mini: static RAM 30,788 -> 30,672 B, flash 330,509 -> 332,541 B; host tests 61 -> 77.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
AlexaInterfaces.h/.cpp hold one row per interface in program memory (28: namespace,
version, property names, flags, type), each row and string an object of its own, so
the linker keeps only the rows a sketch names. addCapability(AlexaInterfaceType) is
an always-inline switch that folds to one row; a type without a row is refused with
an error. The Event handler gets its type from the capabilities of the device.
Versions follow the interface pages (EndpointHealth 3.1, ThermostatController 3.2),
HumiditySensor is new, the two withdrawn interfaces and AlexaInterfaceUtils are gone.
Display category names are in flash. The discovery objects of the five examples are
unchanged: 14 new host tests compare them with what the previous commit announced.
basicLight on a D1 mini: static RAM 34,508 -> 30,788, flash 338,533 -> 330,509;
it links two rows, EndpointHealth and PowerController. Host tests: 47 -> 61.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
