Add sorter progress counters

The prompts used to arrive at this change since the previous commit

Add a counter to the verplaats_bestaand file

Any special observations that may be relevant for version management for this version. Be brief.

Audit mode now reports folder position and scanned message progress every 250 messages without running live mailbox scripts from Codex.

restart_prompt.md

@@ -78,6 +78,7 @@ Scripts using shared IMAP folder handling:
 - Default mode is dry-run; real moves require `--uitvoeren` and an interactive `JA` confirmation.
 - Account selection is explicit with `--account <naam>`; use `--account backup` for the disposable backup mailbox. The script prints both the config account name and mailbox address before connecting.
 - `--audit` is available only in dry-run mode. It suppresses per-message dry-run lines and prints planned move counts grouped by source folder and destination folder for step 2 and step 3.
+- Long scans show progress counters: source folders are printed as `[current/total]`, and audit mode prints `Gescand: processed/total` every 250 messages and at folder completion.
 - IMAP `LIST`, `SELECT`, `UID SEARCH`, and `UID FETCH` aborts are logged and retried once after reconnecting. If reconnect also fails, the script records an `ABORT`/`ERROR` in `verplaats_log.json` instead of printing a Python traceback.
 - `MAP_RENAMES` is intentionally empty.
 - Source folders are selected by shared `list_folders()` plus `mail_routes.is_source_folder()`.