feat: Add Analysis page, run comparison, notifications, and config editor

Dashboard enhancements:
- Add Analysis page with tabs: Overview, Parameters, Pareto, Correlations, Constraints, Surrogate, Runs
- Add PlotlyCorrelationHeatmap for parameter-objective correlation analysis
- Add PlotlyFeasibilityChart for constraint satisfaction visualization
- Add PlotlySurrogateQuality for FEA vs NN prediction comparison
- Add PlotlyRunComparison for comparing optimization runs within a study

Real-time improvements:
- Replace watchdog file-watching with SQLite database polling for better Windows reliability
- Add DatabasePoller class with 2-second polling interval
- Enhanced WebSocket messages: trial_completed, new_best, pareto_update, progress

Desktop notifications:
- Add useNotifications hook using Web Notifications API
- Add NotificationSettings toggle component
- Notify users when new best solutions are found

Config editor:
- Add PUT /studies/{study_id}/config endpoint with auto-backup
- Add ConfigEditor modal with tabs: General, Variables, Objectives, Settings, JSON
- Prevents editing while optimization is running

Enhanced Pareto visualization:
- Add dark mode styling with transparent backgrounds
- Add stats bar showing Pareto, FEA, NN, and infeasible counts
- Add Pareto front connecting line for 2D view
- Add table showing top 10 Pareto-optimal solutions

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

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

atomizer-dashboard/frontend/src/context/StudyContext.tsx

@@ -8,6 +8,7 @@ interface StudyContextType {
   studies: Study[];
   refreshStudies: () => Promise<void>;
   isLoading: boolean;
+  isInitialized: boolean; // True once initial load + localStorage restoration is complete
   clearStudy: () => void;
 }
 
@@ -17,6 +18,7 @@ export const StudyProvider: React.FC<{ children: ReactNode }> = ({ children }) =
   const [selectedStudy, setSelectedStudyState] = useState<Study | null>(null);
   const [studies, setStudies] = useState<Study[]>([]);
   const [isLoading, setIsLoading] = useState(true);
+  const [isInitialized, setIsInitialized] = useState(false);
 
   const refreshStudies = async () => {
     try {
@@ -55,16 +57,23 @@ export const StudyProvider: React.FC<{ children: ReactNode }> = ({ children }) =
   // Initial load
   useEffect(() => {
     const init = async () => {
-      await refreshStudies();
-
-      // Restore last selected study
-      const lastStudyId = localStorage.getItem('selectedStudyId');
-      if (lastStudyId) {
+      try {
         const response = await apiClient.getStudies();
-        const study = response.studies.find(s => s.id === lastStudyId);
-        if (study) {
-          setSelectedStudyState(study);
+        setStudies(response.studies);
+
+        // Restore last selected study from localStorage
+        const lastStudyId = localStorage.getItem('selectedStudyId');
+        if (lastStudyId) {
+          const study = response.studies.find(s => s.id === lastStudyId);
+          if (study) {
+            setSelectedStudyState(study);
+          }
         }
+      } catch (error) {
+        console.error('Failed to initialize studies:', error);
+      } finally {
+        setIsLoading(false);
+        setIsInitialized(true); // Mark as initialized AFTER localStorage restoration
       }
     };
     init();
@@ -77,6 +86,7 @@ export const StudyProvider: React.FC<{ children: ReactNode }> = ({ children }) =
       studies,
       refreshStudies,
       isLoading,
+      isInitialized,
       clearStudy
     }}>
       {children}