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

databases/migrations/0004_add_stages_and_mobilites.sql

@@ -0,0 +1,28 @@
+DROP TABLE IF EXISTS "mobility";
+--> statement-breakpoint
+CREATE TYPE "mobility_status" AS ENUM ('contracts_received', 'under_revision', 'done', 'validated', 'canceled');
+--> statement-breakpoint
+CREATE TABLE "stages" (
+	"idStage" serial PRIMARY KEY NOT NULL,
+	"numEtud" integer NOT NULL,
+	"duree" integer NOT NULL,
+	"nomEntreprise" text NOT NULL,
+	"mission" text
+);
+--> statement-breakpoint
+CREATE TABLE "mobilites" (
+	"idMob" serial PRIMARY KEY NOT NULL,
+	"numEtud" integer NOT NULL,
+	"duree" integer NOT NULL,
+	"contratMob" text,
+	"ecole" text,
+	"pays" text,
+	"status" "mobility_status" NOT NULL DEFAULT 'contracts_received',
+	"idStage" integer
+);
+--> statement-breakpoint
+ALTER TABLE "stages" ADD CONSTRAINT "stages_numEtud_students_numEtud_fk" FOREIGN KEY ("numEtud") REFERENCES "public"."students"("numEtud") ON DELETE no action ON UPDATE no action;
+--> statement-breakpoint
+ALTER TABLE "mobilites" ADD CONSTRAINT "mobilites_numEtud_students_numEtud_fk" FOREIGN KEY ("numEtud") REFERENCES "public"."students"("numEtud") ON DELETE no action ON UPDATE no action;
+--> statement-breakpoint
+ALTER TABLE "mobilites" ADD CONSTRAINT "mobilites_idStage_stages_idStage_fk" FOREIGN KEY ("idStage") REFERENCES "public"."stages"("idStage") ON DELETE no action ON UPDATE no action;

databases/migrations/meta/_journal.json

@@ -29,6 +29,13 @@
       "when": 1777155028711,
       "tag": "0003_add_session2_and_malus",
       "breakpoints": true
+    },
+    {
+      "idx": 4,
+      "version": "7",
+      "when": 1777155028712,
+      "tag": "0004_add_stages_and_mobilites",
+      "breakpoints": true
     }
   ]
 }