Fix: safe booting on no connection

[miceno]

No description provided.

[Copilot]

Pull Request Overview

This PR enhances WiFi connectivity robustness by implementing a multi-network fallback system and improving connection failure handling. The changes allow the device to attempt connections to multiple pre-configured WiFi networks before falling back to the WiFiManager portal.

• Implements a list-based WiFi connection system with multiple network credentials
• Adds automatic restart functionality when no WiFi connection is available after portal timeout
• Updates version strings to reflect the new functionality

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.

File	Description
wifi_secrets.sample.h	Adds WiFiCredentials struct and array for multiple network configurations
wifi.ino	Implements multi-network connection logic and connection failure handling
rolloff-linear-actuator.ino	Removes VERSION_ID constant (likely moved elsewhere)
drv8871.cpp	Updates version string to V1.7

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