Add Mode1 auth testing environment with token comparison verification

- Created Mode1 as self-contained test environment
- Added auth-module copy with self-contained configuration
- Implemented backend server with Graph token and PocketBase validation endpoints
- Added frontend test dashboard with token comparison functionality
- Fixed TypeScript compatibility issues (replaced import.meta.dir with __dirname)
- Implemented actual PB token validation in comparison endpoint (no placeholders)
- All endpoints tested and working with real tokens

ModeSwitch/backend/orchestrator.ts

@@ -10,6 +10,7 @@ const ORCHESTRATOR_PORT = 3006;  // Orchestrator API runs here
 
 // Mode folder mappings - only Mode6Test exists currently
 const MODE_FOLDERS: Record<string, string> = {
+  'Mode1': 'Mode1',
   'Mode6Test': 'Mode6Test',
 };