PrintSphere v1.5-rc1_debug001

This debug build focuses on stability, Cloud/AMS compatibility, and better field diagnostics for community testing.

• Improved LVGL/display stability: the known LVGL lock FAILED freeze has been mitigated. TE/flush stalls should no longer lock up the whole UI as easily.
• AMS is now available in Cloud Only mode: Cloud AMS data is parsed correctly, passed through the resolver, and shown in the UI.
• More robust Cloud MQTT handling: not authorized is now treated as a dedicated auth/session issue, with better logging and less reconnect spam.
• Better network diagnostics: MQTT disconnects and TCP probe failures now also log current Wi-Fi signal strength (RSSI).
• Reduced DIAG log spam: AMS/local MQTT diagnostics now log only real changes instead of repeatedly dumping the full cached state.
• Progress handling improved: stale 100% progress from previous jobs is cleared when a new print starts, and prepare/download progress is handled more cleanly.
• Touch/UI improvements: faster wake-up from screen-off and better separation between horizontal page swipes and vertical brightness gestures.
• Setup portal cleanup: Screen Rotation, Energy, AMS Display, Connection Mode, and Portal Access are now grouped into a more compact mobile-friendly accordion layout.