feat: stages module, mobility frontend, theme toggle, employeeOnly access control

- Add stages module with full CRUD API and admin overview island
- Add mobility overview island (Liste, Kanban, Detail CRUD views)
- Add contract PDF upload/download endpoints for mobilites
- Add light/dark theme toggle in header
- Add employeeOnly flag to hide entire modules from students (admin, students, stages)
- Add read-only GET endpoints for modules/ues/ue-modules in notes module
- Add [slug].tsx catch-all routes for direct URL navigation
- Replace old mobility table with mobilites + stages schema (migration 0004)
- Allow students to create mobilites and upload contracts
- Redirect authenticated users from / to /apps catalog

scripts/generate-templates.ts

@@ -5,7 +5,12 @@ import * as XLSX from "https://cdn.sheetjs.com/xlsx-0.20.3/package/xlsx.mjs";
 {
   const wb = XLSX.utils.book_new();
   const ws = XLSX.utils.aoa_to_sheet([
-    [null, null, null, "Promotion peut etre vide mais doit prealablement Exister"],
+    [
+      null,
+      null,
+      null,
+      "Promotion peut etre vide mais doit prealablement Exister",
+    ],
     ["Nom", "Prenom", "Numero-etudiant", "Promotion"],
     ["NOM", "PRENOM", 12345678, "3AFISE24-25"],
   ]);
@@ -38,8 +43,26 @@ import * as XLSX from "https://cdn.sheetjs.com/xlsx-0.20.3/package/xlsx.mjs";
 {
   const data = [
     ["Intitule du diplome", null, "Informatique - Annee 20.. - 20.."],
-    ["Description des UE du diplome", null, null, null, null, null, "Nombre d'heures"],
-    ["Annee\nSemestres", "Codes APOGEE", null, null, "Credits\n ECTS", "Coeff.", "CM", "TD", "TP"],
+    [
+      "Description des UE du diplome",
+      null,
+      null,
+      null,
+      null,
+      null,
+      "Nombre d'heures",
+    ],
+    [
+      "Annee\nSemestres",
+      "Codes APOGEE",
+      null,
+      null,
+      "Credits\n ECTS",
+      "Coeff.",
+      "CM",
+      "TD",
+      "TP",
+    ],
     ["INFO3A", null, null, null, "ECTS", "Coef", "CM", "TD", "TP"],
     ["SEM 5", null, null, null, 30],
     ["UE", "CODE_UE1", "Nom de l'UE 1", null, 6],