vibe code the initial impl

main/notifier.h

@@ -0,0 +1,17 @@
+#pragma once
+#include <stdbool.h>
+#include <stdint.h>
+#include "esp_err.h"
+
+typedef enum { NOTIF_ALERT = 0, NOTIF_TEST } notif_kind_t;
+
+typedef struct {
+    bool wifi_connected;
+    char ip[16];
+    uint32_t sent_ok, sent_failed, dropped;
+    bool wifi_configured;
+} notifier_stats_t;
+
+esp_err_t notifier_init(void);                        // Wi-Fi + network task
+bool notifier_send(notif_kind_t kind, const char *msg);   // non-blocking enqueue, false if queue full
+void notifier_get_stats(notifier_stats_t *out);