# Price set version tables

## Wizard (2 steps)

1. Basic info + view bound customers (read-only)
2. Edit product prices (library pull on next)

- No manual effective_time input.
- Draft version: status=0, effective_time null until activate.
- Activate: sets effective_time=now; previous version expires. Does not change package header status.
- Copy as new version: `POST /price/set/version/copy/{psvId}` inserts new draft `prc_price_set_version` and copies `prc_price_set_detail` (+ surcharge snapshots) from source psv_id.
- Audit submit/approve/reject removed from UI save path.

## Graph

```
prc_price_set
  -> prc_price_set_version                 draft / active / expired
       -> prc_price_set_detail             product prices (psv_id)
            -> prc_price_set_version_surcharge
```

## Status

Version: 0 draft, 1 active, 2 expired. Active when effective_time <= now and (expire_time null or > now).

## SQL

1. `price_set_version.sql`
2. `price_set_version_eff_nullable.sql` (allow null `prc_price_set.effective_date` and `prc_price_set_version.effective_time` for drafts)

## Billing

Match by price_set_id; multi-version quote should filter active psv_id by bill time.