documentation updates, remove superfluous comments

tooling/pipeline/includes/services/database/export_service.h

@@ -16,10 +16,6 @@
 class IExportService {
  public:
   IExportService() = default;
-
-  /**
-   * @brief Virtual destructor for polymorphic cleanup.
-   */
   virtual ~IExportService() = default;
 
   IExportService(const IExportService&) = delete;

tooling/pipeline/includes/services/database/sqlite_statement_helpers.h

@@ -109,6 +109,8 @@ INSERT INTO users (
 ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?);
 )sql";
 
+// sqlite3_bind_*() parameter indices are 1-based, matching the "?"
+// placeholder order in the SQL above.
 inline constexpr int kLocationCityBindIndex = 1;
 inline constexpr int kLocationStateProvinceBindIndex = 2;
 inline constexpr int kLocationIso31662BindIndex = 3;