try fix again again.

database/postgres/posts.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"database/sql"
 	"errors"
+	"fmt"
 	"git.aiterp.net/rpdata/api/database/postgres/psqlcore"
 	"git.aiterp.net/rpdata/api/internal/generate"
 	"git.aiterp.net/rpdata/api/models"
@@ -255,7 +256,7 @@ func (r *postRepository) Delete(ctx context.Context, post models.Post) error {
 
 	err = q.MovePost(ctx, psqlcore.MovePostParams{ID: post.ID, Position: -1})
 	if err != nil {
-		return err
+		return fmt.Errorf("pre-delete move failed: %s", err)
 	}
 
 	err = q.ShiftPostsAfter(ctx, psqlcore.ShiftPostsAfterParams{
@@ -264,17 +265,17 @@ func (r *postRepository) Delete(ctx context.Context, post models.Post) error {
 		FromPosition: int32(post.Position + 1),
 	})
 	if err != nil {
-		return err
+		return fmt.Errorf("shift failed: %s", err)
 	}
 
 	err = q.DeletePost(ctx, post.ID)
 	if err != nil {
-		return err
+		return fmt.Errorf("delete failed: %s", err)
 	}
 
 	err = tx.Commit()
 	if err != nil {
-		return err
+		return fmt.Errorf("tx commit failed: %s", err)
 	}
 
 	_ = psqlcore.New(r.db).GenerateLogTSVector(ctx, post.LogID)