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/backend/api/main.py

@@ -13,7 +13,7 @@ import sys
 # Add parent directory to path to import optimization_engine
 sys.path.append(str(Path(__file__).parent.parent.parent.parent))
 
-from api.routes import optimization, claude, terminal, insights, context, files, nx
+from api.routes import optimization, claude, terminal, insights, context, files, nx, claude_code, spec
 from api.websocket import optimization_stream
 
 
@@ -60,6 +60,9 @@ app.include_router(insights.router, prefix="/api/insights", tags=["insights"])
 app.include_router(context.router, prefix="/api/context", tags=["context"])
 app.include_router(files.router, prefix="/api/files", tags=["files"])
 app.include_router(nx.router, prefix="/api/nx", tags=["nx"])
+app.include_router(claude_code.router, prefix="/api", tags=["claude-code"])
+app.include_router(spec.router, prefix="/api", tags=["spec"])
+app.include_router(spec.validate_router, prefix="/api", tags=["spec"])
 
 @app.get("/")
 async def root():