chore(2meet-data-optimizer-woocommerce-addon): release 0.1.1

- Version 0.1.1 for the hardening 2.0 changes that shipped without a version bump
- CHANGELOG: Marketplace commission keys fix (hp_vendor / hp_commission_rate / hp_commission_fee)
- Verify: composer test (10 OK)

CHANGELOG.md

@@ -9,6 +9,21 @@ Versioning follows [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+---
+
+## [0.1.1] — 2026-09-26
+
+Hardening 2.0 changes, released alongside 2meet-data-optimizer 1.1.0.
+
+### Fixed
+
+- Commission tracking read `_hp_*` keys that Marketplace never writes, so no
+  commission was recorded. It now reads `hp_vendor` / `hp_commission_rate` /
+  `hp_commission_fee` and computes subtotal, vendor payout and commission the
+  way `Marketplace::get_order_profit()` does (honouring
+  `hp_vendor_include_taxes`); stores the vendor's user ID, the product's parent
+  listing and the platform commission percentage.
+
 ### Added
 
 - 三個 WC runtime usermeta 欄位進 `user`/`hot` group：`wc_last_active`、