feat: enhance metrics dashboard with new components and data handling

- Introduced `MetricsOverview`, `MetricsMainCharts`, `MetricsDistributionCharts`, `MetricsVelocitySection`, and `MetricsProductivitySection` for improved metrics visualization.
- Updated `MetricsTab` to integrate new components and streamline data presentation.
- Added compatibility fields in `JiraTask` and `AssigneeDistribution` for better data handling.
- Refactored `calculateAssigneeDistribution` to include a count for total issues.
- Enhanced `JiraAnalyticsService` and `JiraAdvancedFiltersService` to support new metrics calculations.
- Cleaned up unused imports and components for a more maintainable codebase.

src/lib/types.ts

@@ -144,6 +144,9 @@ export interface JiraTask {
   issuetype: {
     name: string; // Story, Task, Bug, Epic, etc.
   };
+  issueType?: {
+    name: string; // Alias pour compatibilité
+  };
   components?: Array<{
     name: string;
   }>;
@@ -155,6 +158,7 @@ export interface JiraTask {
   created: string;
   updated: string;
   labels: string[];
+  storyPoints?: number; // Ajout pour les story points
 }
 
 // Types pour l'analytics Jira
@@ -191,6 +195,7 @@ export interface AssigneeDistribution {
   completedIssues: number;
   inProgressIssues: number;
   percentage: number;
+  count: number; // Ajout pour compatibilité
 }
 
 export interface SprintVelocity {
@@ -200,6 +205,7 @@ export interface SprintVelocity {
   completedPoints: number;
   plannedPoints: number;
   completionRate: number;
+  velocity: number; // Ajout pour compatibilité
 }
 
 export interface CycleTimeByType {