feat: Add OPD method support to Zernike visualization with Standard/OPD toggle

Major improvements to Zernike WFE visualization:

- Add ZernikeDashboardInsight: Unified dashboard with all orientations (40°, 60°, 90°)
  on one page with light theme and executive summary
- Add OPD method toggle: Switch between Standard (Z-only) and OPD (X,Y,Z) methods
  in ZernikeWFEInsight with interactive buttons
- Add lateral displacement maps: Visualize X,Y displacement for each orientation
- Add displacement component views: Toggle between WFE, ΔX, ΔY, ΔZ in relative views
- Add metrics comparison table showing both methods side-by-side

New extractors:
- extract_zernike_figure.py: ZernikeOPDExtractor using BDF geometry interpolation
- extract_zernike_opd.py: Parabola-based OPD with focal length

Key finding: OPD method gives 8-11% higher WFE values than Standard method
(more conservative/accurate for surfaces with lateral displacement under gravity)

Documentation updates:
- SYS_12: Added E22 ZernikeOPD as recommended method
- SYS_16: Added ZernikeDashboard, updated ZernikeWFE with OPD features
- Cheatsheet: Added Zernike method comparison table

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

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

optimization_engine/extractors/__init__.py

@@ -27,7 +27,7 @@ Phase 4 Extractors (2025-12-19):
 - Part Introspection (E12): Comprehensive .prt analysis (expressions, mass, materials, attributes, groups, features)
 """
 
-# Zernike extractor for telescope mirror optimization
+# Zernike extractor for telescope mirror optimization (standard Z-only method)
 from optimization_engine.extractors.extract_zernike import (
     ZernikeExtractor,
     extract_zernike_from_op2,
@@ -35,6 +35,29 @@ from optimization_engine.extractors.extract_zernike import (
     extract_zernike_relative_rms,
 )
 
+# Analytic (parabola-based) Zernike extractor (accounts for lateral X/Y displacement)
+# Uses parabola formula - requires knowing focal length
+from optimization_engine.extractors.extract_zernike_opd import (
+    ZernikeAnalyticExtractor,
+    extract_zernike_analytic,
+    extract_zernike_analytic_filtered_rms,
+    compare_zernike_methods,
+    # Backwards compatibility (deprecated)
+    ZernikeOPDExtractor as _ZernikeOPDExtractor_deprecated,
+)
+
+# OPD-based Zernike extractor (uses actual mesh geometry, no shape assumption)
+# MOST RIGOROUS method - RECOMMENDED for telescope mirror optimization
+from optimization_engine.extractors.extract_zernike_figure import (
+    ZernikeOPDExtractor,
+    extract_zernike_opd,
+    extract_zernike_opd_filtered_rms,
+    # Backwards compatibility (deprecated)
+    ZernikeFigureExtractor,
+    extract_zernike_figure,
+    extract_zernike_figure_rms,
+)
+
 # Part mass and material extractor (from NX .prt files)
 from optimization_engine.extractors.extract_part_mass_material import (
     extract_part_mass_material,
@@ -114,11 +137,24 @@ __all__ = [
     'extract_total_reaction_force',
     'extract_reaction_component',
     'check_force_equilibrium',
-    # Zernike (telescope mirrors)
+    # Zernike (telescope mirrors) - Standard Z-only method
     'ZernikeExtractor',
     'extract_zernike_from_op2',
     'extract_zernike_filtered_rms',
     'extract_zernike_relative_rms',
+    # Zernike OPD (RECOMMENDED - uses actual geometry, no shape assumption)
+    'ZernikeOPDExtractor',
+    'extract_zernike_opd',
+    'extract_zernike_opd_filtered_rms',
+    # Zernike Analytic (parabola-based with lateral displacement correction)
+    'ZernikeAnalyticExtractor',
+    'extract_zernike_analytic',
+    'extract_zernike_analytic_filtered_rms',
+    'compare_zernike_methods',
+    # Backwards compatibility (deprecated)
+    'ZernikeFigureExtractor',
+    'extract_zernike_figure',
+    'extract_zernike_figure_rms',
     # Temperature (Phase 3 - thermal)
     'extract_temperature',
     'extract_temperature_gradient',