Initial commit: X-Plane G1000 web cockpit + bridge + Tauri desktop app

- server/: Node bridge (datarefs/commands, navdata, CIFP procedures, flight plan)
- web/: React cockpit (PFD/MFD/Map, VFR six-pack, AFCS, FMS CDU), PWA, collapsible sidebar
- desktop/: Tauri 2 launcher (Bun sidecar, system tray, updater) + Linux build via Docker
- scripts/: prep-desktop, build-linux, Gitea release + latest.json

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

desktop/src-tauri/icons/android/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+  <background android:drawable="@color/ic_launcher_background"/>
+</adaptive-icon>