refactor: remove unused imports from certifications and courses modules

apps/api/src/db/courses/certifications.py

@@ -1,8 +1,6 @@
 from typing import Optional
 from sqlalchemy import JSON, Column, ForeignKey
 from sqlmodel import Field, SQLModel
-from enum import Enum
-from datetime import datetime
 
 class CertificationBase(SQLModel):
     course_id: int = Field(sa_column= Column("course_id", ForeignKey("course.id", ondelete="CASCADE")))

apps/api/src/routers/courses/certifications.py

@@ -6,7 +6,6 @@ from src.db.courses.certifications import (
     CertificationCreate,
     CertificationRead,
     CertificationUpdate,
-    CertificateUserRead,
 )
 from src.db.users import PublicUser
 from src.security.auth import get_current_user

apps/api/src/routers/courses/courses.py

@@ -13,7 +13,6 @@ from src.db.courses.courses import (
     CourseRead,
     CourseUpdate,
     FullCourseRead,
-    FullCourseReadWithTrail,
     ThumbnailType,
 )
 from src.security.auth import get_current_user

apps/api/src/services/courses/certifications.py

@@ -9,7 +9,6 @@ from src.db.courses.certifications import (
     CertificationRead,
     CertificationUpdate,
     CertificateUser,
-    CertificateUserCreate,
     CertificateUserRead,
 )
 from src.db.courses.courses import Course

apps/api/src/services/courses/courses.py

@@ -9,7 +9,6 @@ from src.security.features_utils.usage import (
     decrease_feature_usage,
     increase_feature_usage,
 )
-from src.services.trail.trail import get_user_trail_with_orgid
 from src.db.resource_authors import ResourceAuthor, ResourceAuthorshipEnum, ResourceAuthorshipStatusEnum
 from src.db.users import PublicUser, AnonymousUser, User, UserRead
 from src.db.courses.courses import (
@@ -29,7 +28,6 @@ from src.security.rbac.rbac import (
 from src.services.courses.thumbnails import upload_thumbnail
 from fastapi import HTTPException, Request, UploadFile
 from datetime import datetime
-import asyncio
 
 
 async def get_course(