Phase 0: menu-bar scaffold, permissions, backend health check

Native SwiftUI menu-bar app (LSUIElement, macOS 13+), generated from project.yml
via XcodeGen. Includes:
- PermissionsManager (Microphone / Screen Recording / Accessibility) + UI
- SparkControlHealth: GET /api/status over self-signed TLS (InsecureTrustDelegate)
- AppSettings persistence (host, TLS-skip, output folder, adapter toggles)
- Menu-bar panel + Settings, app sandbox & hardened runtime off (LAN tool)

.gitignore

@@ -0,0 +1,16 @@
+# macOS
+.DS_Store
+
+# Xcode project is generated from project.yml by XcodeGen.
+# Regenerate any time with:  xcodegen generate
+*.xcodeproj
+*.xcworkspace
+xcuserdata/
+DerivedData/
+build/
+
+# Swift / SwiftPM
+.build/
+
+# App output (never commit recordings or transcripts)
+/Ten31Transcripts-output/