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>

atomizer-dashboard/frontend/src/pages/Insights.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useEffect, useCallback, useMemo } from 'react';
+import { useState, useEffect, useCallback, useMemo } from 'react';
 import { useNavigate } from 'react-router-dom';
 import {
   Eye,
@@ -12,19 +12,15 @@ import {
   Box,
   AlertCircle,
   CheckCircle,
-  Clock,
-  FileText,
   Lightbulb,
-  Target,
-  Layers,
-  BookOpen,
   ChevronRight,
   ChevronDown,
   Folder,
   Play,
   ExternalLink,
   Zap,
-  List
+  List,
+  LucideIcon
 } from 'lucide-react';
 import { useStudy } from '../context/StudyContext';
 import { Card } from '../components/common/Card';
@@ -74,7 +70,7 @@ interface InsightResult {
 // ============================================================================
 // Constants
 // ============================================================================
-const INSIGHT_ICONS: Record<string, React.ElementType> = {
+const INSIGHT_ICONS: Record<string, LucideIcon> = {
   zernike_wfe: Waves,
   zernike_opd_comparison: Waves,
   msf_zernike: Waves,
@@ -286,7 +282,7 @@ export default function Insights() {
     return groups;
   }, [availableInsights]);
 
-  const getIcon = (type: string) => INSIGHT_ICONS[type] || Eye;
+  const getIcon = (type: string): LucideIcon => INSIGHT_ICONS[type] || Eye;
   const getColorClass = (type: string) => INSIGHT_COLORS[type] || 'text-gray-400 bg-gray-500/10 border-gray-500/30';
 
   // ============================================================================