Initial commit: PilotVault multi-service project

Add API Server (Go/PocketBase), Web App (Go BFF + Vue), Fly App
(Flutter/DJI MSDK), Adobe Plugin, and Docker/Docker AIO deployment
configs. Design assets and build artifacts are gitignored.

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

API Server/internal/plugins/builtin/builtin.go

@@ -0,0 +1,11 @@
+// Package builtin blank-imports every built-in plugin so their init() functions
+// register them with the plugin registry. Import this package once (from the api
+// package) to make all built-in connectors available.
+package builtin
+
+import (
+	_ "pilotvault/apiserver/internal/plugins/builtin/filetransfer"
+	_ "pilotvault/apiserver/internal/plugins/builtin/localstorage"
+	_ "pilotvault/apiserver/internal/plugins/builtin/opensky"
+	_ "pilotvault/apiserver/internal/plugins/builtin/webdav"
+)