Add Debug page and fix BLE communication issues

Major changes:
- Added Debug tab with real-time message logging and hex viewer
- Implemented timed data logging ($UMTDL command) per API v1.3
- Fixed BLE message parsing to handle notifications without line endings
- Added Schema 2 support (22-field timed logging packets)
- Updated Maglink BLE UUIDs (fff0/fff1/fff2)
- Added connection timeout (10s) to prevent hanging on unavailable devices
- Added connection status display and manual push-button logging trigger
- Improved retry logging with attempt numbers and delays
- Added console window allocation for Windows debug output
- Added BLE disconnect on app close

Bug fixes:
- Fixed device name filtering for Maglink (ML-* prefix)
- Fixed RtkGps enum reference in DeviceScanViewModel
- Fixed DebugMessage namespace (moved to Models)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/settings.local.json

@@ -2,7 +2,10 @@
   "permissions": {
     "allow": [
       "Bash(git init)",
-      "Bash(git add .)"
+      "Bash(git add .)",
+      "Bash(git commit -m \"$(cat <<''EOF''\nInitial commit: FieldLogger MAUI app with Maglink BLE support\n\nAdded Maglink RTK GNSS receiver integration with correct BLE UUIDs and device name filtering (ML-* prefix).\n\n🤖 Generated with [Claude Code](https://claude.com/claude-code)\n\nCo-Authored-By: Claude <noreply@anthropic.com>\nEOF\n)\")",
+      "Read(//d/maglink/**)",
+      "Bash(git add -A)"
     ],
     "deny": [],
     "ask": []