feat: Add AtomizerField training data export and intelligent model discovery

Major additions:
- Training data export system for AtomizerField neural network training
- Bracket stiffness optimization study with 50+ training samples
- Intelligent NX model discovery (auto-detect solutions, expressions, mesh)
- Result extractors module for displacement, stress, frequency, mass
- User-generated NX journals for advanced workflows
- Archive structure for legacy scripts and test outputs
- Protocol documentation and dashboard launcher

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

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

launch_dashboard.bat

@@ -0,0 +1,42 @@
+@echo off
+REM Atomizer Dashboard Launcher
+REM Starts both backend and frontend, then opens browser
+
+echo ============================================
+echo    ATOMIZER DASHBOARD LAUNCHER
+echo ============================================
+echo.
+
+REM Set paths
+set ATOMIZER_ROOT=%~dp0
+set BACKEND_DIR=%ATOMIZER_ROOT%atomizer-dashboard\backend
+set FRONTEND_DIR=%ATOMIZER_ROOT%atomizer-dashboard\frontend
+set CONDA_ENV=atomizer
+
+echo Starting Backend API (port 8000)...
+start "Atomizer Backend" cmd /k "cd /d %BACKEND_DIR% && conda activate %CONDA_ENV% && python -m uvicorn api.main:app --host 0.0.0.0 --port 8000 --reload"
+
+echo Starting Frontend (port 3003)...
+start "Atomizer Frontend" cmd /k "cd /d %FRONTEND_DIR% && npm run dev"
+
+echo.
+echo Waiting for services to start...
+timeout /t 5 /nobreak > nul
+
+echo.
+echo ============================================
+echo    DASHBOARD READY
+echo ============================================
+echo.
+echo   Frontend:  http://localhost:3003
+echo   Backend:   http://localhost:8000
+echo   API Docs:  http://localhost:8000/docs
+echo.
+echo ============================================
+
+REM Open browser
+start http://localhost:3003
+
+echo.
+echo Press any key to close this window (servers will keep running)...
+pause > nul