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/plugin/workspace-adapter.test.ts

@@ -0,0 +1,140 @@
+import { afterEach, describe, expect } from "bun:test"
+import { Effect, Layer } from "effect"
+import { FetchHttpClient } from "effect/unstable/http"
+import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
+import { Database } from "@opencode-ai/core/database/database"
+import { FSUtil } from "@opencode-ai/core/fs-util"
+import { Ripgrep } from "@opencode-ai/core/ripgrep"
+import { EffectFlock } from "@opencode-ai/core/util/effect-flock"
+import path from "path"
+import { pathToFileURL } from "url"
+import { Auth } from "../../src/auth"
+import { EventV2Bridge } from "../../src/event-v2-bridge"
+import { Config } from "../../src/config/config"
+import { Env } from "../../src/env"
+import { RuntimeFlags } from "../../src/effect/runtime-flags"
+import { Workspace } from "../../src/control-plane/workspace"
+import { Plugin } from "../../src/plugin/index"
+import { InstanceBootstrap } from "../../src/project/bootstrap-service"
+import { InstanceStore } from "../../src/project/instance-store"
+import { Project } from "../../src/project/project"
+import { Vcs } from "../../src/project/vcs"
+import { InstanceState } from "../../src/effect/instance-state"
+import { Session } from "../../src/session/session"
+import { SessionPrompt } from "../../src/session/prompt"
+import { disposeAllInstances, TestInstance } from "../fixture/fixture"
+import { testEffect } from "../lib/effect"
+import { AccountTest } from "../fake/account"
+import { AuthTest } from "../fake/auth"
+import { NpmTest } from "../fake/npm"
+
+const configLayer = Config.layer.pipe(
+  Layer.provide(EffectFlock.defaultLayer),
+  Layer.provide(FSUtil.defaultLayer),
+  Layer.provide(Env.defaultLayer),
+  Layer.provide(AuthTest.empty),
+  Layer.provide(AccountTest.empty),
+  Layer.provide(NpmTest.noop),
+  Layer.provide(FetchHttpClient.layer),
+)
+const pluginLayer = Plugin.layer.pipe(
+  Layer.provide(EventV2Bridge.defaultLayer),
+  Layer.provide(configLayer),
+  Layer.provide(RuntimeFlags.layer({ disableDefaultPlugins: true })),
+)
+const noopBootstrapLayer = Layer.succeed(InstanceBootstrap.Service, InstanceBootstrap.Service.of({ run: Effect.void }))
+const workspaceLayer = Workspace.layer.pipe(
+  Layer.provide(Auth.defaultLayer),
+  Layer.provide(Session.defaultLayer),
+  Layer.provide(SessionPrompt.defaultLayer),
+  Layer.provide(Project.defaultLayer),
+  Layer.provide(Vcs.defaultLayer),
+  Layer.provide(FetchHttpClient.layer),
+  Layer.provide(Database.defaultLayer),
+  Layer.provide(EventV2Bridge.defaultLayer),
+  Layer.provide(FSUtil.defaultLayer),
+  Layer.provide(InstanceStore.defaultLayer.pipe(Layer.provide(noopBootstrapLayer))),
+  Layer.provide(RuntimeFlags.layer({ experimentalWorkspaces: true })),
+)
+const it = testEffect(
+  Layer.mergeAll(pluginLayer, workspaceLayer, CrossSpawnSpawner.defaultLayer).pipe(Layer.provide(Ripgrep.defaultLayer)),
+)
+
+afterEach(async () => {
+  await disposeAllInstances()
+})
+
+describe("plugin.workspace", () => {
+  it.instance("plugin can install a workspace adapter", () =>
+    Effect.gen(function* () {
+      const dir = (yield* TestInstance).directory
+      const type = `plug-${Math.random().toString(36).slice(2)}`
+      const file = path.join(dir, "plugin.ts")
+      const mark = path.join(dir, "created.json")
+      const space = path.join(dir, "space")
+      yield* Effect.promise(() =>
+        Bun.write(
+          file,
+          [
+            "export default async ({ experimental_workspace }) => {",
+            `  experimental_workspace.register(${JSON.stringify(type)}, {`,
+            '    name: "plug",',
+            '    description: "plugin workspace adapter",',
+            "    configure(input) {",
+            `      return { ...input, name: "plug", branch: "plug/main", directory: ${JSON.stringify(space)} }`,
+            "    },",
+            "    async create(input) {",
+            `      await Bun.write(${JSON.stringify(mark)}, JSON.stringify(input))`,
+            "    },",
+            "    async remove() {},",
+            "    target(input) {",
+            '      return { type: "local", directory: input.directory }',
+            "    },",
+            "  })",
+            "  return {}",
+            "}",
+            "",
+          ].join("\n"),
+        ),
+      )
+
+      yield* Effect.promise(() =>
+        Bun.write(
+          path.join(dir, "opencode.json"),
+          JSON.stringify(
+            {
+              $schema: "https://opencode.ai/config.json",
+              plugin: [pathToFileURL(file).href],
+            },
+            null,
+            2,
+          ),
+        ),
+      )
+
+      const plugin = yield* Plugin.Service
+      yield* plugin.init()
+      const workspace = yield* Workspace.Service
+      const ctx = yield* InstanceState.context
+      const info = yield* workspace.create({
+        type,
+        branch: null,
+        extra: { key: "value" },
+        projectID: ctx.project.id,
+      })
+
+      expect(info.type).toBe(type)
+      expect(info.name).toBe("plug")
+      expect(info.branch).toBe("plug/main")
+      expect(info.directory).toBe(space)
+      expect(info.extra).toEqual({ key: "value" })
+      expect(JSON.parse(yield* Effect.promise(() => Bun.file(mark).text()))).toMatchObject({
+        type,
+        name: "plug",
+        branch: "plug/main",
+        directory: space,
+        extra: { key: "value" },
+      })
+    }),
+  )
+})