feat: implement project ignore list for Jira synchronization

- Updated `JiraConfigForm` to include an input for ignored projects, allowing users to specify projects to exclude from synchronization.
- Enhanced `JiraService` with a method to filter out tasks from ignored projects, improving task management.
- Modified user preferences to store ignored projects, ensuring persistence across sessions.
- Updated API routes to handle ignored projects in configuration, enhancing overall functionality.
- Marked the corresponding task as complete in TODO.md.

src/app/api/user-preferences/jira-config/route.ts

@@ -26,7 +26,7 @@ export async function GET() {
 export async function PUT(request: NextRequest) {
   try {
     const body = await request.json();
-    const { baseUrl, email, apiToken } = body;
+    const { baseUrl, email, apiToken, ignoredProjects } = body;
 
     // Validation des données requises
     if (!baseUrl || !email || !apiToken) {
@@ -59,7 +59,10 @@ export async function PUT(request: NextRequest) {
       baseUrl: baseUrl.trim(),
       email: email.trim(),
       apiToken: apiToken.trim(),
-      enabled: true
+      enabled: true,
+      ignoredProjects: Array.isArray(ignoredProjects) 
+        ? ignoredProjects.map((p: string) => p.trim().toUpperCase()).filter((p: string) => p.length > 0)
+        : []
     };
 
     await userPreferencesService.saveJiraConfig(jiraConfig);
@@ -91,7 +94,8 @@ export async function DELETE() {
       baseUrl: '',
       email: '',
       apiToken: '',
-      enabled: false
+      enabled: false,
+      ignoredProjects: []
     };
 
     await userPreferencesService.saveJiraConfig(defaultConfig);