chore: release 9.0.0+tibiash.6 (#17)

Releases `9.0.0+tibiash.6`. This pull request merges itself once its
checks pass. Then the merge commit is tagged `v9.0.0+tibiash.6`, and the
tag publishes the release.

- Read numbers with commas as thousands separators, like `50,000`, as
the whole number instead of the digits before
the first comma. This fixes creature `hitpoints` and `experience`, item
`value_buy` and `value_sell`, outfit
`full_price` and other quantities. A comma not followed by exactly three
digits still ends the number, and an ID list
like `itemid = 629,630,631` or `mount_id = 421,437,438,747` still gives
its first ID. A creature's max damage
without a `{{Max Damage}}` template reads `1,300+` as 1300, and a range
like `600-1000?` by its larger number.
- Keep the first number of every ID field, like the client IDs, so
`achievementid = 12,345` gives 12, not 12345. This
covers `house.house_id`, `achievement.achievement_id`,
`world.world_board`, `world.trade_board`, `game_update.news_id`
  and `item_key.number`. No current value changes.
- Add the `item.value_buy_currency` column. It holds the article's
`pricecurrency`, otherwise a currency written after
the price in `npcprice`, like `50 [[Gold Token]]s`, otherwise `Gold
Coin`, and `NULL` when `value_buy` is `NULL` or 0.
A linked currency gives the page it links to, so `[[Silver Token]]s`
gives `Silver Token`, and `mount.price_currency`
now reads links the same way. 25 Years Backpack's price of 7197 is now
in `Theons`, not gold.

Author: tibia-sh-bot[bot]

CHANGELOG.md

@@ -1,7 +1,7 @@
 <!-- Changed by tibia.sh in 2026. See "About this copy" in README.md. -->
 # Changelog
 
-## Unreleased
+## 9.0.0+tibiash.6
 
 - Read numbers with commas as thousands separators, like `50,000`, as the whole number instead of the digits before
   the first comma. This fixes creature `hitpoints` and `experience`, item `value_buy` and `value_sell`, outfit

tibiawikisql/__init__.py

@@ -5,4 +5,4 @@
 __copyright__ = "Copyright 2026 Allan Galarza"
 
 __license__ = "Apache 2.0"
-__version__ = "9.0.0+tibiash.5"
+__version__ = "9.0.0+tibiash.6"