refactor: move backend in apps/backend

apps/backend/tests/Profile photo/Get profile photo.bru

@@ -0,0 +1,29 @@
+meta {
+  name: Get profile photo
+  type: http
+  seq: 1
+}
+
+get {
+  url: {{url}}/api/profile-photo
+  body: none
+  auth: inherit
+}
+
+assert {
+  res.status: eq 200
+  res.body.profile_photo_path: isDefined
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
+
+docs {
+  # /profile-photo -- GET
+
+  Retourne le chemin de la photo de profil de l'utilisateur connecté.
+
+  Authentification requise.
+}