feature/autostart

[JoelHer]

This pull request refactors the device recovery flow to improve handling of the OTA boot process and adds logic to automatically boot into the ota_0 partition if no device connects to the access point within 30 seconds. It also adds a developer note about future boot flag logic. The main changes are grouped below:

Recovery Boot Flow Improvements:

• The main task now waits up to 30 seconds for a device to connect to the Wi-Fi access point. If no device connects, the system automatically boots into the ota_0 partition. If a device connects, the system stays in recovery mode.
• Added detailed logging for device connection attempts and connected device MAC addresses to aid debugging and monitoring.

OTA Boot Partition Handling:

• Refactored the OTA boot logic into a new helper function boot_ota0_partition, simplifying error handling and code reuse. The HTTP handler now delegates to this function.

Developer Notes:

• Added a prominent comment in app_main about planned boot flag logic to skip recovery mode in certain scenarios (e.g., when in flight), improving maintainability and future development clarity.

Closes #84