feat: Add dashboard chat integration and MCP server

Major changes:
- Dashboard: WebSocket-based chat with session management
- Dashboard: New chat components (ChatPane, ChatInput, ModeToggle)
- Dashboard: Enhanced UI with parallel coordinates chart
- MCP Server: New atomizer-tools server for Claude integration
- Extractors: Enhanced Zernike OPD extractor
- Reports: Improved report generator

New studies (configs and scripts only):
- M1 Mirror: Cost reduction campaign studies
- Simple Beam, Simple Bracket, UAV Arm studies

Note: Large iteration data (2_iterations/, best_design_archive/)
excluded via .gitignore - kept on local Gitea only.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

studies/bracket_displacement_maximizing/test_fix.py

@@ -4,8 +4,8 @@ from pathlib import Path
 
 sys.path.insert(0, str(Path(__file__).parent.parent.parent))
 
-from optimization_engine.nx_solver import NXSolver
-from optimization_engine.nx_updater import NXParameterUpdater
+from optimization_engine.nx.solver import NXSolver
+from optimization_engine.nx.updater import NXParameterUpdater
 
 study_dir = Path(__file__).parent
 prt_file = study_dir / "model" / "Bracket.prt"