refactor: remove unused analytics actions and integrate metrics directly

- Deleted `analytics.ts` and `deadline-analytics.ts` as they were no longer needed.
- Integrated `AnalyticsService` and `DeadlineAnalyticsService` directly into `HomePage` and `DailyPage`, streamlining data fetching.
- Updated components to utilize the new metrics structure, ensuring proper data flow and rendering.

src/actions/analytics.ts

@@ -1,25 +0,0 @@
-'use server';
-
-import { AnalyticsService, ProductivityMetrics, TimeRange } from '@/services/analytics/analytics';
-
-export async function getProductivityMetrics(timeRange?: TimeRange): Promise<{
-  success: boolean;
-  data?: ProductivityMetrics;
-  error?: string;
-}> {
-  try {
-    const metrics = await AnalyticsService.getProductivityMetrics(timeRange);
-    
-    return {
-      success: true,
-      data: metrics
-    };
-  } catch (error) {
-    console.error('Erreur lors de la récupération des métriques:', error);
-    
-    return {
-      success: false,
-      error: error instanceof Error ? error.message : 'Erreur inconnue'
-    };
-  }
-}

src/actions/deadline-analytics.ts

@@ -1,29 +0,0 @@
-'use server';
-
-import { DeadlineAnalyticsService } from '@/services/analytics/deadline-analytics';
-
-export async function getDeadlineMetrics() {
-  try {
-    const metrics = await DeadlineAnalyticsService.getDeadlineMetrics();
-    return { success: true, data: metrics };
-  } catch (error) {
-    console.error('Erreur lors de la récupération des métriques d\'échéance:', error);
-    return { 
-      success: false, 
-      error: error instanceof Error ? error.message : 'Erreur lors de la récupération des métriques d\'échéance'
-    };
-  }
-}
-
-export async function getCriticalDeadlines() {
-  try {
-    const tasks = await DeadlineAnalyticsService.getCriticalDeadlines();
-    return { success: true, data: tasks };
-  } catch (error) {
-    console.error('Erreur lors de la récupération des échéances critiques:', error);
-    return { 
-      success: false, 
-      error: error instanceof Error ? error.message : 'Erreur lors de la récupération des échéances critiques'
-    };
-  }
-}