feat: refactor service organization and update imports

- Introduced a new structure for services in `src/services/` to improve organization by domain, including core, analytics, data management, integrations, and task management.
- Moved relevant files to their new locations and updated all internal and external imports accordingly.
- Updated `TODO.md` to reflect the new service organization and outlined phases for further refactoring.

src/actions/jira-analytics.ts

@@ -1,7 +1,7 @@
 'use server';
 
 import { JiraAnalyticsService } from '@/services/jira-analytics';
-import { userPreferencesService } from '@/services/user-preferences';
+import { userPreferencesService } from '@/services/core/user-preferences';
 import { JiraAnalytics } from '@/lib/types';
 
 export type JiraAnalyticsResult = {

src/actions/jira-anomalies.ts

@@ -2,7 +2,7 @@
 
 import { jiraAnomalyDetection, JiraAnomaly, AnomalyDetectionConfig } from '@/services/jira-anomaly-detection';
 import { JiraAnalyticsService, JiraAnalyticsConfig } from '@/services/jira-analytics';
-import { userPreferencesService } from '@/services/user-preferences';
+import { userPreferencesService } from '@/services/core/user-preferences';
 
 export interface AnomalyDetectionResult {
   success: boolean;

src/actions/jira-filters.ts

@@ -2,7 +2,7 @@
 
 import { JiraAnalyticsService, JiraAnalyticsConfig } from '@/services/jira-analytics';
 import { JiraAdvancedFiltersService } from '@/services/jira-advanced-filters';
-import { userPreferencesService } from '@/services/user-preferences';
+import { userPreferencesService } from '@/services/core/user-preferences';
 import { AvailableFilters, JiraAnalyticsFilters, JiraAnalytics } from '@/lib/types';
 
 export interface FiltersResult {

src/actions/jira-sprint-details.ts

@@ -1,7 +1,7 @@
 'use server';
 
 import { JiraAnalyticsService, JiraAnalyticsConfig } from '@/services/jira-analytics';
-import { userPreferencesService } from '@/services/user-preferences';
+import { userPreferencesService } from '@/services/core/user-preferences';
 import { SprintDetails } from '@/components/jira/SprintDetailModal';
 import { JiraTask, AssigneeDistribution, StatusDistribution, SprintVelocity } from '@/lib/types';
 import { parseDate } from '@/lib/date-utils';

src/actions/preferences.ts

@@ -1,6 +1,6 @@
 'use server';
 
-import { userPreferencesService } from '@/services/user-preferences';
+import { userPreferencesService } from '@/services/core/user-preferences';
 import { KanbanFilters, ViewPreferences, ColumnVisibility, TaskStatus } from '@/lib/types';
 import { revalidatePath } from 'next/cache';
 

src/actions/system-info.ts

@@ -1,6 +1,6 @@
 'use server';
 
-import { SystemInfoService } from '@/services/system-info';
+import { SystemInfoService } from '@/services/core/system-info';
 
 export async function getSystemInfo() {
   try {

src/actions/tfs.ts

@@ -1,6 +1,6 @@
 'use server';
 
-import { userPreferencesService } from '@/services/user-preferences';
+import { userPreferencesService } from '@/services/core/user-preferences';
 import { revalidatePath } from 'next/cache';
 import { tfsService, TfsConfig } from '@/services/tfs';