chore: refactor project structure and clean up unused components

- Updated `TODO.md` to reflect new testing tasks and final structure expectations.
- Simplified TypeScript path mappings in `tsconfig.json` for better clarity.
- Revised business logic separation rules in `.cursor/rules` to align with new directory structure.
- Deleted unused client components and services to streamline the codebase.
- Adjusted import paths in scripts to match the new structure.

src/hooks/useJiraAnalytics.ts

@@ -0,0 +1,43 @@
+'use client';
+
+import { useState, useTransition, useCallback } from 'react';
+import { getJiraAnalytics } from '@/actions/jira-analytics';
+import { JiraAnalytics } from '@/lib/types';
+
+export function useJiraAnalytics() {
+  const [analytics, setAnalytics] = useState<JiraAnalytics | null>(null);
+  const [error, setError] = useState<string | null>(null);
+  const [isPending, startTransition] = useTransition();
+
+  const loadAnalytics = useCallback((forceRefresh = false) => {
+    startTransition(async () => {
+      try {
+        setError(null);
+
+        const result = await getJiraAnalytics(forceRefresh);
+
+        if (result.success && result.data) {
+          setAnalytics(result.data);
+        } else {
+          setError(result.error || 'Erreur lors du chargement des analytics');
+        }
+      } catch (err) {
+        const errorMessage = err instanceof Error ? err.message : 'Erreur lors du chargement des analytics';
+        setError(errorMessage);
+        console.error('Erreur analytics Jira:', err);
+      }
+    });
+  }, []);
+
+  const refreshAnalytics = useCallback(() => {
+    loadAnalytics(true); // Force refresh quand on actualise manuellement
+  }, [loadAnalytics]);
+
+  return {
+    analytics,
+    isLoading: isPending,
+    error,
+    loadAnalytics,
+    refreshAnalytics
+  };
+}