Complete distribution flow and student UI

- progress-service: Distribute variants (round-robin per lab per level),
  student level assignment, API for levels/assignments
- progress-service: Inter-service clients (academic, identity) via RestClient
- web: Admin lab detail page with distribute/level buttons
- web: Student dashboard shows assigned labs from progress-service
- web: ApiClient methods for labs detail, distribute, levels, me/assignments
- academic-service: Add id to LabLevelDetail DTO for progress-service
- Fix: CSS-only layout, footer at bottom via flex column

services/progress-service/src/main/resources/application.yml

@@ -27,4 +27,10 @@ management:
         include: health,info
 springdoc:
   api-docs:
-    path: /v3/api-docs
+    path: /v3/api-docs
+
+lms:
+  academic:
+    base-url: ${LMS_ACADEMIC_URI:http://localhost:8082}
+  identity:
+    base-url: ${LMS_IDENTITY_URI:http://localhost:8081}