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。

packages/opencode/test/cli/run/footer.width.test.ts

@@ -0,0 +1,35 @@
+import { describe, expect, test } from "bun:test"
+import { footerWidthPolicy } from "@/cli/cmd/run/footer.width"
+
+describe("run footer width", () => {
+  test("preserves shared dialog and statusline breakpoints", () => {
+    const narrow = footerWidthPolicy(79)
+    expect(narrow.dialog.narrow).toBe(true)
+    expect(narrow.statusline.showActivityMeta).toBe(false)
+    expect(narrow.statusline.showCommandHint).toBe(true)
+    expect(narrow.statusline.showContextHints).toBe(false)
+    expect(narrow.statusline.contextHintLimit).toBe(0)
+    expect(narrow.statusline.showModel).toBe(false)
+
+    const command = footerWidthPolicy(65)
+    expect(command.statusline.showCommandHint).toBe(false)
+
+    const commandHint = footerWidthPolicy(66)
+    expect(commandHint.statusline.showCommandHint).toBe(true)
+
+    const compact = footerWidthPolicy(80)
+    expect(compact.dialog.narrow).toBe(false)
+    expect(compact.statusline.showActivityMeta).toBe(true)
+    expect(compact.statusline.showContextHints).toBe(true)
+    expect(compact.statusline.contextHintLimit).toBe(1)
+    expect(compact.statusline.showModel).toBe(false)
+
+    const model = footerWidthPolicy(120)
+    expect(model.statusline.contextHintLimit).toBe(2)
+    expect(model.statusline.showModel).toBe(true)
+
+    const spacious = footerWidthPolicy(150)
+    expect(spacious.statusline.contextHintLimit).toBeUndefined()
+    expect(spacious.statusline.showModel).toBe(true)
+  })
+})