feat: add comprehensive consolidation index and documentation

Co-authored-by: cetinmustafa83 <30570791+cetinmustafa83@users.noreply.github.com>

src/lib/navigation-config.ts

@@ -48,6 +48,7 @@ export interface NavGroup {
 export const NAVIGATION_ROUTES = {
   DASHBOARD: '/dashboard',
   GRADES: '/grades',
+  CALENDAR: '/calendar',
   ASSESSMENTS: '/assessments',
   CLASSES: '/classes',
   COMMUNICATION: '/communication',
@@ -92,6 +93,14 @@ export const TEACHER_NAV_ITEMS: NavGroup[] = [
     id: 'academic',
     title: 'Academic',
     items: [
+      {
+        id: 'calendar',
+        label: 'Calendar',
+        href: NAVIGATION_ROUTES.CALENDAR,
+        icon: Calendar,
+        roles: ['TEACHER', 'STUDENT', 'PARENT', 'SCHOOL_ADMIN'],
+        description: 'View all events, exams, and school calendar',
+      },
       {
         id: 'grades',
         label: 'Grades',
@@ -106,13 +115,6 @@ export const TEACHER_NAV_ITEMS: NavGroup[] = [
         icon: FileText,
         roles: ['TEACHER', 'SCHOOL_ADMIN'],
       },
-      {
-        id: 'calendar',
-        label: 'Calendar',
-        href: NAVIGATION_ROUTES.ATTENDANCE, // Placeholder
-        icon: Calendar,
-        roles: ['TEACHER'],
-      },
     ],
   },
   {