refactor(architecture): enforce component layering constraints

- move runtime policy/diag contracts to domain-owned facade and remove control_plane leapfrog usage

- enforce single declaration point for direct debug config in domain public API (constraint #6)

- harden timeout/idempotent semantics in REST/voice/printer/wifi/ble paths

components/domain/internal/voice_interaction_internal.h

@@ -11,6 +11,7 @@
 #include "freertos/semphr.h"
 #include "freertos/task.h"
 #include "domain.h"
+#include "platform.h"
 
 #define VOICE_STREAMING_MODE "duplex"
 #define VOICE_TASK_GROUP "aigc"