Fix CI regressions and stabilize tests

internal/storage/sqlite/migrations/002_external_ref_column.go

@@ -2,24 +2,30 @@ package migrations
 
 import (
 	"database/sql"
+	"errors"
 	"fmt"
 )
 
-func MigrateExternalRefColumn(db *sql.DB) error {
+func MigrateExternalRefColumn(db *sql.DB) (retErr error) {
 	var columnExists bool
 	rows, err := db.Query("PRAGMA table_info(issues)")
 	if err != nil {
 		return fmt.Errorf("failed to check schema: %w", err)
 	}
+	defer func() {
+		if rows != nil {
+			if closeErr := rows.Close(); closeErr != nil {
+				retErr = errors.Join(retErr, fmt.Errorf("failed to close schema rows: %w", closeErr))
+			}
+		}
+	}()
 
 	for rows.Next() {
 		var cid int
 		var name, typ string
 		var notnull, pk int
 		var dflt *string
-		err := rows.Scan(&cid, &name, &typ, &notnull, &dflt, &pk)
-		if err != nil {
-			rows.Close()
+		if err := rows.Scan(&cid, &name, &typ, &notnull, &dflt, &pk); err != nil {
 			return fmt.Errorf("failed to scan column info: %w", err)
 		}
 		if name == "external_ref" {
@@ -29,12 +35,14 @@ func MigrateExternalRefColumn(db *sql.DB) error {
 	}
 
 	if err := rows.Err(); err != nil {
-		rows.Close()
 		return fmt.Errorf("error reading column info: %w", err)
 	}
 
-	// Close rows before executing any statements to avoid deadlock with MaxOpenConns(1)
-	rows.Close()
+	// Close rows before executing any statements to avoid deadlock with MaxOpenConns(1).
+	if err := rows.Close(); err != nil {
+		return fmt.Errorf("failed to close schema rows: %w", err)
+	}
+	rows = nil
 
 	if !columnExists {
 		_, err := db.Exec(`ALTER TABLE issues ADD COLUMN external_ref TEXT`)