fix until the canvas sort of works

backend/app/api/sharing.py

@@ -14,7 +14,7 @@ from app.boards.schemas import (
     ShareLinkResponse,
 )
 from app.boards.sharing import generate_secure_token
-from app.core.deps import get_current_user, get_db
+from app.core.deps import get_current_user, get_db_sync
 from app.database.models.board import Board
 from app.database.models.comment import Comment
 from app.database.models.share_link import ShareLink
@@ -80,7 +80,7 @@ def create_share_link(
     board_id: UUID,
     share_link_data: ShareLinkCreate,
     current_user: User = Depends(get_current_user),
-    db: Session = Depends(get_db),
+    db: Session = Depends(get_db_sync),
 ) -> ShareLinkResponse:
     """
     Create a new share link for a board.
@@ -117,7 +117,7 @@ def create_share_link(
 def list_share_links(
     board_id: UUID,
     current_user: User = Depends(get_current_user),
-    db: Session = Depends(get_db),
+    db: Session = Depends(get_db_sync),
 ) -> list[ShareLinkResponse]:
     """
     List all share links for a board.
@@ -144,7 +144,7 @@ def revoke_share_link(
     board_id: UUID,
     link_id: UUID,
     current_user: User = Depends(get_current_user),
-    db: Session = Depends(get_db),
+    db: Session = Depends(get_db_sync),
 ) -> None:
     """
     Revoke (soft delete) a share link.
@@ -176,7 +176,7 @@ def revoke_share_link(
 @router.get("/shared/{token}", response_model=BoardDetail)
 def get_shared_board(
     token: str,
-    db: Session = Depends(get_db),
+    db: Session = Depends(get_db_sync),
 ) -> BoardDetail:
     """
     Access a shared board via token.
@@ -202,7 +202,7 @@ def get_shared_board(
 def create_comment(
     token: str,
     comment_data: CommentCreate,
-    db: Session = Depends(get_db),
+    db: Session = Depends(get_db_sync),
 ) -> CommentResponse:
     """
     Create a comment on a shared board.
@@ -230,7 +230,7 @@ def create_comment(
 @router.get("/shared/{token}/comments", response_model=list[CommentResponse])
 def list_comments(
     token: str,
-    db: Session = Depends(get_db),
+    db: Session = Depends(get_db_sync),
 ) -> list[CommentResponse]:
     """
     List all comments on a shared board.
@@ -255,7 +255,7 @@ def list_comments(
 def list_board_comments(
     board_id: UUID,
     current_user: User = Depends(get_current_user),
-    db: Session = Depends(get_db),
+    db: Session = Depends(get_db_sync),
 ) -> list[CommentResponse]:
     """
     List all comments on a board (owner view).