fix: 修正 logo 中 N 和 G 字母造型

N 添加对角线笔画（█▄ █），G 添加内横杠（█ ▀█），
避免与 O 字母造型雷同。同步更新 ui.ts 中的硬编码 wordmark。

.opencode/command/commit.md

@@ -0,0 +1,37 @@
+---
+description: git commit and push
+model: opencode/kimi-k2.5
+subtask: true
+---
+
+commit and push
+
+make sure it includes a prefix like
+docs:
+tui:
+core:
+ci:
+ignore:
+wip:
+
+For anything in the packages/web use the docs: prefix.
+
+prefer to explain WHY something was done from an end user perspective instead of
+WHAT was done.
+
+do not do generic messages like "improved agent experience" be very specific
+about what user facing changes were made
+
+if there are conflicts DO NOT FIX THEM. notify me and I will fix them
+
+## GIT DIFF
+
+!`git diff`
+
+## GIT DIFF --cached
+
+!`git diff --cached`
+
+## GIT STATUS --short
+
+!`git status --short`