Added MAC address display to splash screen

[Yukti007]

Links

• Closes Firmware, FactoryTest_wMenu, report MAC address #414

What & Why

• WiFi.macAddress() was returning 00:00:00:00:00:00 in the splash because the WiFi driver wasn't initialized yet
• Added WiFi.mode(WIFI_STA) + delay(100) in setup() before the splash prints, then immediately set back to WIFI_OFF
• Added [boot] status lines for LittleFS and WiFi init so operator knows board is alive during startup
• Added MAC address to splashserial() for device traceability

Validation / How to Verify

1. Flash v0.4.5.2 and open serial monitor at 115200 baud
2. Confirm [boot] LittleFS... OK and [boot] WiFi init... OK appear on startup
3. Confirm MAC (STA): in the splash shows a real MAC address (not 00:00:00:00:00:00)

Artifacts (attach if relevant)

• Screenshots / PDFs / STLs
• Logs

Checklist

• Only related changes FactoryTest_wMenu.ino
• Folder structure respected, work directory Firmware/factoryTest/FactoryTest_wMenu/FactoryTest_wMenu.ino
• Validation steps written

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Gate WiFi init success log on actual init result

The new boot status line always prints "[boot] WiFi init... OK" even if WiFi.mode(WIFI_STA) fails, which can mask real radio/init failures during factory bring-up and make later MAC/Wi-Fi test failures harder to diagnose. In this setup path, the success message should be conditioned on the WiFi.mode(...) return value (or equivalent error check) so the log reflects the true boot state.

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