init

main/app_composition/README.md

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+# App Composition Layer
+
+Purpose: top-level assembly only.
+
+Rules:
+- `app_main` wires components, startup order, and shutdown hooks.
+- No feature/business logic in composition code.
+- No direct hardware operations outside platform abstractions.

main/app_composition/src/app_main.c

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+#include "controller_lifecycle.h"
+
+#include "esp_err.h"
+#include "esp_log.h"
+
+static const char *TAG = "app_main";
+
+void app_main(void) {
+    ESP_ERROR_CHECK(controller_lifecycle_start());
+
+    ESP_LOGI(TAG, "LYF controller started");
+}