feat: Añadir columna organization_id a course_instructors y actualizar migraciones para alinear con el modelo compartido

services/lms-service/migrations/20260331000002_fix_course_instructors_org.sql

@@ -0,0 +1,27 @@
+-- Ensure LMS course_instructors schema matches shared model expectations
+
+ALTER TABLE IF EXISTS public.course_instructors
+    ADD COLUMN IF NOT EXISTS organization_id UUID;
+
+UPDATE public.course_instructors ci
+SET organization_id = c.organization_id
+FROM public.courses c
+WHERE ci.course_id = c.id
+  AND ci.organization_id IS NULL;
+
+ALTER TABLE IF EXISTS public.course_instructors
+    ALTER COLUMN organization_id SET NOT NULL;
+
+DO $$
+BEGIN
+  IF NOT EXISTS (
+    SELECT 1
+    FROM pg_constraint
+    WHERE conname = 'fk_lms_course_instructors_organization'
+      AND conrelid = 'public.course_instructors'::regclass
+  ) THEN
+    ALTER TABLE public.course_instructors
+      ADD CONSTRAINT fk_lms_course_instructors_organization
+      FOREIGN KEY (organization_id) REFERENCES public.organizations(id) ON DELETE CASCADE;
+  END IF;
+END$$;