feat(dashboard): Enhanced chat, spec management, and Claude integration

Backend:
- spec.py: New AtomizerSpec REST API endpoints
- spec_manager.py: SpecManager service for unified config
- interview_engine.py: Study creation interview logic
- claude.py: Enhanced Claude API with context
- optimization.py: Extended optimization endpoints
- context_builder.py, session_manager.py: Improved services

Frontend:
- Chat components: Enhanced message rendering, tool call cards
- Hooks: useClaudeCode, useSpecWebSocket, improved useChat
- Pages: Updated Dashboard, Analysis, Insights, Setup, Home
- Components: ParallelCoordinatesPlot, ParetoPlot improvements
- App.tsx: Route updates for canvas/studio

Infrastructure:
- vite.config.ts: Build configuration updates
- start/stop-dashboard.bat: Script improvements

atomizer-dashboard/frontend/vite.config.ts

@@ -17,18 +17,10 @@ export default defineConfig({
       }
     }
   },
-  resolve: {
-    alias: {
-      // Use the smaller basic Plotly distribution
-      'plotly.js/dist/plotly': 'plotly.js-basic-dist'
-    }
-  },
   build: {
     rollupOptions: {
       output: {
         manualChunks: {
-          // Separate Plotly into its own chunk for better caching
-          plotly: ['plotly.js-basic-dist', 'react-plotly.js'],
           // Separate React and core libs
           vendor: ['react', 'react-dom', 'react-router-dom'],
           // Recharts in its own chunk
@@ -37,8 +29,5 @@ export default defineConfig({
       }
     },
     chunkSizeWarningLimit: 600
-  },
-  optimizeDeps: {
-    include: ['plotly.js-basic-dist']
   }
 })