feat: Add TrialManager and DashboardDB for unified trial management

- Add TrialManager (trial_manager.py) for consistent trial_NNNN naming
- Add DashboardDB (dashboard_db.py) for Optuna-compatible database schema
- Update CLAUDE.md with trial management documentation
- Update ATOMIZER_CONTEXT.md with v1.8 trial system
- Update cheatsheet v2.2 with new utilities
- Update SYS_14 protocol to v2.3 with TrialManager integration
- Add LAC learnings for trial management patterns
- Add archive/README.md for deprecated code policy

Key principles:
- Trial numbers NEVER reset (monotonic)
- Folders NEVER get overwritten
- Database always synced with filesystem
- Surrogate predictions are NOT trials (only FEA results)

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

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

archive/README.md

@@ -0,0 +1,39 @@
+# Atomizer Archive
+
+This directory contains deprecated/replaced code that is kept for reference and potential rollback.
+
+## Structure
+
+```
+archive/
+├── extractors/           # Deprecated physics extractors
+│   └── zernike_legacy/   # Pre-OPD Zernike extractors
+└── README.md
+```
+
+## Archive Policy
+
+When replacing functionality:
+1. Move the old file to the appropriate archive subdirectory
+2. Add a header comment noting the archive date and replacement
+3. Update this README with the change
+
+## Archived Items
+
+### extractors/zernike_legacy/ (2024-12-28)
+
+**Replaced by:** `extract_zernike_opd.py` (ZernikeOPDExtractor)
+
+**Reason:** The OPD method provides more accurate wavefront error calculations by:
+- Using optical path difference (OPD) directly instead of surface displacement
+- Proper handling of relative subcase comparisons
+- Better numerical stability for high-order Zernike modes
+
+**Archived files:**
+| File | Original Class | Description |
+|------|----------------|-------------|
+| `extract_zernike.py` | `ZernikeExtractor` | Original displacement-based Zernike |
+| `extract_zernike_surface.py` | `ZernikeSurfaceExtractor` | Surface-normal projection variant |
+| `extract_zernike_figure.py` | `ZernikeFigureExtractor` | Figure error variant |
+
+**To restore:** Copy files back to `optimization_engine/extractors/` and update `__init__.py`