Adapt WSS to new boards and use MQTT domain for eSIM connectivity

Preserve main GNSS and volume behavior while porting verified TLS, receive fixes and full-handshake optimizations. Add MQTT connection diagnostics and route MQTT through banban.api.talkingq.com:1883.

Include migration documentation and regression tools. Firmware builds and package checks passed; user confirmed new-board connectivity after switching the MQTT host to the domain.

ql-application/threadx/interface/custom_app/Makefile

@@ -13,6 +13,7 @@ MAKEFILE_PATH :=$(subst $(strip \),/,$(abspath $(lastword $(MAKEFILE_LIST))))
 SRC_FILES+= \
   custom_app.c \
   lib/cJSON/cJSON.c\
+  lib/librws/src/rws_handshake.c\
   lib/librws/src/rws_error.c\
   lib/librws/src/rws_frame.c\
   lib/librws/src/rws_list.c\
@@ -67,6 +68,8 @@ SRC_FILES+= \
   http_aofei.c \
   net_mgt.c \
   ws_talkingq.c \
+  talkingq_wss.c \
+  talkingq_root_ca.c \
   hal_key.c \
   audio.c  \
   hal_led.c \
@@ -78,6 +81,7 @@ SRC_FILES+= \
   nfc.c  \
   DP1312EA.c \
   mqtt.c \
+  mqtt_connect_diag.c \
   vad_det.c \
   sleep_wake.c \
   battery.c \