feat: enhance JiraDashboard with initial analytics support

- Updated `JiraDashboardPageClient` to accept `initialAnalytics`, allowing for server-side analytics retrieval.
- Modified `useJiraAnalytics` to initialize state with `initialAnalytics`, improving data handling.
- Adjusted `CollaborationMatrix` to manage client-side rendering and analytics data processing, preventing hydration errors.
- Enhanced `page.tsx` to fetch analytics based on Jira configuration, ensuring data is available for the dashboard.

src/app/jira-dashboard/JiraDashboardPageClient.tsx

@@ -1,7 +1,7 @@
 'use client';
 
 import { useState, useEffect, useMemo } from 'react';
-import { JiraConfig } from '@/lib/types';
+import { JiraConfig, JiraAnalytics } from '@/lib/types';
 import { useJiraAnalytics } from '@/hooks/useJiraAnalytics';
 import { useJiraExport } from '@/hooks/useJiraExport';
 import { filterAnalyticsByPeriod, getPeriodInfo, type PeriodFilter } from '@/lib/jira-period-filter';
@@ -28,10 +28,11 @@ import Link from 'next/link';
 
 interface JiraDashboardPageClientProps {
   initialJiraConfig: JiraConfig;
+  initialAnalytics?: JiraAnalytics | null;
 }
 
-export function JiraDashboardPageClient({ initialJiraConfig }: JiraDashboardPageClientProps) {
-  const { analytics: rawAnalytics, isLoading, error, loadAnalytics, refreshAnalytics } = useJiraAnalytics();
+export function JiraDashboardPageClient({ initialJiraConfig, initialAnalytics }: JiraDashboardPageClientProps) {
+  const { analytics: rawAnalytics, isLoading, error, loadAnalytics, refreshAnalytics } = useJiraAnalytics(initialAnalytics);
   const { isExporting, error: exportError, exportCSV, exportJSON } = useJiraExport();
   const { 
     availableFilters, 
@@ -56,11 +57,11 @@ export function JiraDashboardPageClient({ initialJiraConfig }: JiraDashboardPage
   const periodInfo = getPeriodInfo(selectedPeriod);
 
   useEffect(() => {
-    // Charger les analytics au montage si Jira est configuré avec un projet
-    if (initialJiraConfig.enabled && initialJiraConfig.projectKey) {
+    // Charger les analytics au montage seulement si Jira est configuré ET qu'on n'a pas déjà des données
+    if (initialJiraConfig.enabled && initialJiraConfig.projectKey && !initialAnalytics) {
       loadAnalytics();
     }
-  }, [initialJiraConfig.enabled, initialJiraConfig.projectKey, loadAnalytics]);
+  }, [initialJiraConfig.enabled, initialJiraConfig.projectKey, loadAnalytics, initialAnalytics]);
 
   // Gestion du clic sur un sprint
   const handleSprintClick = (sprint: SprintVelocity) => {

src/app/jira-dashboard/page.tsx

@@ -1,4 +1,5 @@
 import { userPreferencesService } from '@/services/core/user-preferences';
+import { getJiraAnalytics } from '@/actions/jira-analytics';
 import { JiraDashboardPageClient } from './JiraDashboardPageClient';
 
 // Force dynamic rendering
@@ -7,8 +8,20 @@ export const dynamic = 'force-dynamic';
 export default async function JiraDashboardPage() {
   // Récupérer la config Jira côté serveur
   const jiraConfig = await userPreferencesService.getJiraConfig();
+  
+  // Récupérer les analytics côté serveur (utilise le cache du service)
+  let initialAnalytics = null;
+  if (jiraConfig.enabled && jiraConfig.projectKey) {
+    const analyticsResult = await getJiraAnalytics(false); // Utilise le cache
+    if (analyticsResult.success) {
+      initialAnalytics = analyticsResult.data;
+    }
+  }
 
   return (
-    <JiraDashboardPageClient initialJiraConfig={jiraConfig} />
+    <JiraDashboardPageClient 
+      initialJiraConfig={jiraConfig} 
+      initialAnalytics={initialAnalytics}
+    />
   );
 }