feat: Enable FreeRTOS CPU runtime stats, increase cmd_task stack to 6KB

Enable CONFIG_FREERTOS_USE_TRACE_FACILITY and
CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS so PROFILE command reports
per-task CPU usage. Increase cmd_task stack from 4KB to 6KB — was
down to 516 bytes free with current PROFILE reply size.

get-started/csi_recv_router/main/app_main.c

@@ -1302,7 +1302,7 @@ void app_main()
 #endif
     wifi_ping_router_start();
 
-    xTaskCreate(cmd_task, "cmd_task", 4096, NULL, 5, NULL);
+    xTaskCreate(cmd_task, "cmd_task", 6144, NULL, 5, NULL);
     xTaskCreate(adaptive_task, "adaptive", 3072, NULL, 3, NULL);
 
     /* OTA rollback: mark firmware valid if we got this far */

get-started/csi_recv_router/sdkconfig.defaults

@@ -35,6 +35,7 @@ CONFIG_COMPILER_OPTIMIZATION_PERF=y
 # FreeRTOS
 #
 CONFIG_FREERTOS_HZ=1000
+CONFIG_FREERTOS_USE_TRACE_FACILITY=y
 CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS=y
 CONFIG_FREERTOS_USE_STATS_FORMATTING_FUNCTIONS=y