release: 0.22.7 — eliminate panel-switch flicker

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: aqua5230

CHANGELOG.md

@@ -5,6 +5,11 @@
 All notable changes to usage are documented here.
 Format follows [Keep a Changelog](https://keepachangelog.com/).
 
+## [0.22.7] - 2026-06-23
+
+### Fixed
+- **Switching panels no longer flickers**: every switch tore down the WKWebView and reloaded its HTML, exposing the dark backing layer until the load finished — a visible flicker, plus the popover closed and reopened. usage now caches each panel's web view (lazily, capped at 6 with LRU eviction) inside a container view and switches by toggling visibility and re-injecting the latest state, so a previously-opened panel reappears instantly with no reload. The first build of a panel fades in from a same-color overlay that is removed on the first successful paint (or after a 1.5s safety timeout). The popover no longer closes and reopens on switch.
+
 ## [0.22.6] - 2026-06-23
 
 ### Fixed

CHANGELOG.zh-TW.md

@@ -4,6 +4,11 @@
 
 本檔記錄 usage 所有重要變更。格式參考 [Keep a Changelog](https://keepachangelog.com/)。
 
+## [0.22.7] - 2026-06-23
+
+### 修正
+- **切換面板不再閃爍**：原本每次切換都會把網頁視圖（WKWebView）整個丟掉並重載 HTML，在載入完成前露出底層深色背景——看得到的閃爍，且 popover 還會先關再開。usage 現在把每款面板的網頁視圖快取在一個容器視圖裡（用到才建、上限 6 並依最久未用淘汰），切換時只切換顯示／隱藏並重新注入最新狀態，因此先前開過的面板會瞬間重現、不再重載。某面板第一次建立時，會從同色遮罩淡入（首次成功繪製後移除，或 1.5 秒保險逾時後移除）。切換面板時 popover 不再關閉重開。
+
 ## [0.22.6] - 2026-06-23
 
 ### 修正

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "usage"
-version = "0.22.6"
+version = "0.22.7"
 description = "usage — 在 macOS menu bar 顯示 Claude Code 用量的繁中小工具（也提供終端機 TUI）"
 readme = "README.md"
 requires-python = ">=3.13"