feat: Recovery-Download beim Booten

src/net/nl_wifi.h

@@ -21,6 +21,12 @@ extern volatile uint32_t nl_net_beat;
 
 /* Starts the network task. An empty ssid starts the onboarding AP. Strings are copied. */
 void nl_wifi_start(const char *ssid, const char *pass, const char *ap_pass);
+/* Joins a station directly (no nl_wifi_sm) and blocks until it gets an IP or timeout_ms
+ * elapses; returns true on success. For use before nl_wifi_start() only - e.g. the boot
+ * recovery path in nl_recovery.c - since it drives the SDK Wi-Fi calls itself instead of
+ * going through the state machine, and must not race nl_wifi_start()'s own netif status
+ * event registration and s_lock/s_queue setup. Feeds the watchdog itself while it waits. */
+bool nl_wifi_join_blocking(const char *ssid, const char *pass, uint32_t timeout_ms);
 /* Starts an onboarding test with new credentials (from the HTTP task). 0 = queued. */
 int nl_wifi_request_onboard(const char *ssid, const char *pass);
 /* True while the unconfigured onboarding AP is open (API without token). */