feat: add CountEntries to skip decryption for list --detail (#562)

* feat: add CountEntries to skip decryption for list --detail (#549)
* test: add CountEntries and countCategory tests at browser level
* fix: address review feedback on CountRows and countLocalStorage
* test: add CountRows unit tests

utils/sqliteutil/query.go

@@ -1,6 +1,36 @@
 package sqliteutil
 
-import "database/sql"
+import (
+	"database/sql"
+	"fmt"
+	"os"
+)
+
+// CountRows runs a scalar count query (e.g. SELECT COUNT(*) FROM ...) and
+// returns the integer result. Unlike QuerySQLite (which swallows per-row scan
+// errors), CountRows uses QueryRow for fail-fast behavior on scan failures.
+func CountRows(dbPath string, journalOff bool, query string) (int, error) {
+	if _, err := os.Stat(dbPath); err != nil {
+		return 0, fmt.Errorf("database file: %w", err)
+	}
+	db, err := sql.Open("sqlite", dbPath)
+	if err != nil {
+		return 0, err
+	}
+	defer db.Close()
+
+	if journalOff {
+		if _, err := db.Exec("PRAGMA journal_mode=off"); err != nil {
+			return 0, err
+		}
+	}
+
+	var count int
+	if err := db.QueryRow(query).Scan(&count); err != nil {
+		return 0, fmt.Errorf("count rows: %w", err)
+	}
+	return count, nil
+}
 
 // QueryRows is a generic helper (Go 1.18+) that wraps QuerySQLite and collects
 // results into a typed slice. Each extract method only needs to provide the