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/tui/src/plugin/api.ts

@@ -0,0 +1,52 @@
+import type { TuiPluginApi, TuiRouteDefinition } from "@opencode-ai/plugin/tui"
+import { createSignal } from "solid-js"
+
+type RouteEntry = {
+  key: symbol
+  render: TuiRouteDefinition["render"]
+}
+
+export type RouteMap = Map<string, RouteEntry[]>
+
+export function createPluginRoutes() {
+  const routes: RouteMap = new Map()
+  const [revision, setRevision] = createSignal(0)
+
+  return {
+    register(list: TuiRouteDefinition[]) {
+      const key = Symbol()
+      list.forEach((item) => routes.set(item.name, [...(routes.get(item.name) ?? []), { key, render: item.render }]))
+      setRevision((value) => value + 1)
+
+      return () => {
+        list.forEach((item) => {
+          const next = routes.get(item.name)?.filter((entry) => entry.key !== key) ?? []
+          if (next.length) {
+            routes.set(item.name, next)
+            return
+          }
+          routes.delete(item.name)
+        })
+        setRevision((value) => value + 1)
+      }
+    },
+    get(name: string) {
+      revision()
+      return routes.get(name)?.at(-1)?.render
+    },
+  }
+}
+
+export type PluginRoutes = ReturnType<typeof createPluginRoutes>
+
+export function createTuiApi(input: Omit<TuiPluginApi, "lifecycle">): TuiPluginApi {
+  return {
+    ...input,
+    lifecycle: {
+      signal: new AbortController().signal,
+      onDispose() {
+        return () => {}
+      },
+    },
+  }
+}