Sestriere 1.4 "Granito"

Solid as Alpine granite — a stability and code quality release.

No flashy new features this time. Instead, we went deep under the hood to rebuild the foundations for what comes next.

Architecture

• Protocol parsing extracted from MainWindow into a dedicated ProtocolHandler class
• Common utilities consolidated into Utils.h: FormatUptime, FormatTimeAgo, ParseHexPrefix, FormatContactKey
• All magic numbers replaced with named constants across the entire codebase
• Dead code removed: legacy MqttSettingsWindow, StatusBarView, unused message codes

Security

• Hardcoded credentials removed from source
• All database queries migrated to parameterized prepared statements
• User input validated before all protocol operations
• Bounds checks on every incoming protocol frame

Thread Safety

• DatabaseManager singleton protected with mutex
• Child window access guarded by new _LockIfVisible() helper
• MQTT connect/disconnect race condition fixed
• BMessageRunner lifecycle hardened: always NULL after delete, no use-after-free

Protocol Bug Fixes

• CMD_REMOVE_CONTACT and CMD_RESET_PATH now send full 32-byte public key (was 6-byte, causing silent failures)
• CMD_SET_RADIO_PARAMS sends frequency in kHz as V3 spec requires (was Hz)
• Packet Analyzer V3 message text offsets corrected
• localtime() replaced with reentrant localtime_r() throughout
• strtok() replaced with thread-safe strtok_r()
• Blocking snooze() removed from LoginWindow UI thread

UX Polish

• All windows centered on screen (or on parent) instead of hardcoded pixel positions
• Mission Control cards gracefully truncate long text in narrow windows
• MQTT password field with show/hide toggle
• Theme-aware Stats Window using system colors
• Reduced minimum sizes for Telemetry and Packet Analyzer to fit smaller screens
• Unified battery percentage formula across all views