feat: add module prefixes to all routes and load all modules in swagger

Route structure:
  /v1/iam/auth/*         (was /v1/auth/*)
  /v1/iam/users/*        (was /v1/users/*)
  /v1/iam/roles/*        (was /v1/roles/*)
  /v1/iam/permissions/*  (was /v1/permissions/*)
  /v1/landing/cms/events/*        (was /v1/cms/landing/events/*)
  /v1/landing/cms/testimonials/*  (was /v1/cms/landing/testimonials/*)
  /v1/dimentorin/mentors/*   (was /v1/mentors/*)
  /v1/dimentorin/sessions/*  (was /v1/sessions/*)
  /v1/gacha/*            (unchanged)
  /v1/hackathon/*        (unchanged)
  /v1/qr/*               (unchanged)

Swagger: add gacha_credits endpoints which were missing from OpenAPI spec.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

imphnen-iam/src/users/infrastructure/http/handlers/get_handlers.rs

@@ -52,7 +52,7 @@ pub async fn get_user_list(
 
 #[utoipa::path(
     get,
-    path = "/v1/users/detail/{id}",
+    path = "/v1/iam/users/detail/{id}",
     security(("Bearer" = [])),
     params(("id" = String, Path, description = "User ID")),
     responses(
@@ -80,7 +80,7 @@ pub async fn get_user_by_id(
 
 #[utoipa::path(
     get,
-    path = "/v1/users/me",
+    path = "/v1/iam/users/me",
     security(("Bearer" = [])),
     responses(
         (status = 200, description = "[USER] Get current user", body = ResponseSuccessDto<UsersDetailItemDto>)