feat: 品牌替换 + 启动优化 + AGENTS.md 模板定制

- 品牌替换：OpenCode/opencode → AirCoding/aircoding（16+ 文件）
- Logo ASCII art：修复 left/right 行数不匹配导致的启动崩溃
- 启动诊断：添加 OPENCODE_PRINT_TIMING 计时探针
- dev 模式默认 --pure 跳过外部插件加载
- AGENTS.md 模板：追加 AirCoding 多 Agent 专项段落
- architect prompt + plugin：强化 AGENTS.md 产出验证

packages/core/test/plugin/provider-openrouter.test.ts

@@ -0,0 +1,122 @@
+import { describe, expect } from "bun:test"
+import { Effect } from "effect"
+import { Catalog } from "@opencode-ai/core/catalog"
+import { ModelV2 } from "@opencode-ai/core/model"
+import { PluginV2 } from "@opencode-ai/core/plugin"
+import { ProviderPlugins } from "@opencode-ai/core/plugin/provider"
+import { OpenRouterPlugin } from "@opencode-ai/core/plugin/provider/openrouter"
+import { ProviderV2 } from "@opencode-ai/core/provider"
+import { expectPluginRegistered, it, model, provider } from "./provider-helper"
+
+describe("OpenRouterPlugin", () => {
+  it.effect("is registered so legacy OpenRouter behavior can be applied", () =>
+    Effect.sync(() =>
+      expectPluginRegistered(
+        ProviderPlugins.map((item) => item.id),
+        "openrouter",
+      ),
+    ),
+  )
+
+  it.effect("applies legacy referer headers only to openrouter", () =>
+    Effect.gen(function* () {
+      const plugin = yield* PluginV2.Service
+      const catalog = yield* Catalog.Service
+      yield* plugin.add(OpenRouterPlugin)
+      const transform = yield* catalog.transform()
+      yield* transform((catalog) => {
+        const openrouter = provider("openrouter", {
+          api: { type: "aisdk", package: "@openrouter/ai-sdk-provider" },
+          request: { headers: { Existing: "value" }, body: {} },
+        })
+        catalog.provider.update(openrouter.id, (item) => {
+          item.api = openrouter.api
+          item.request = openrouter.request
+        })
+        catalog.provider.update(ProviderV2.ID.make("nvidia"), () => {})
+      })
+
+      expect((yield* catalog.provider.get(ProviderV2.ID.make("openrouter"))).request.headers).toEqual({
+        Existing: "value",
+        "HTTP-Referer": "https://opencode.ai/",
+        "X-Title": "opencode",
+      })
+      expect((yield* catalog.provider.get(ProviderV2.ID.make("nvidia"))).request.headers).toEqual({})
+    }),
+  )
+
+  it.effect("creates an SDK only for the OpenRouter package", () =>
+    Effect.gen(function* () {
+      const plugin = yield* PluginV2.Service
+      yield* plugin.add(OpenRouterPlugin)
+
+      const ignored = yield* plugin.trigger(
+        "aisdk.sdk",
+        {
+          model: model("openrouter", "openai/gpt-5"),
+          package: "@ai-sdk/openai-compatible",
+          options: { name: "openrouter" },
+        },
+        {},
+      )
+      expect(ignored.sdk).toBeUndefined()
+
+      const result = yield* plugin.trigger(
+        "aisdk.sdk",
+        { model: model("custom", "openai/gpt-5"), package: "@openrouter/ai-sdk-provider", options: { name: "custom" } },
+        {},
+      )
+      expect(result.sdk).toBeDefined()
+    }),
+  )
+
+  it.effect("filters OpenRouter's gpt-5 chat alias", () =>
+    Effect.gen(function* () {
+      const plugin = yield* PluginV2.Service
+      const catalog = yield* Catalog.Service
+      yield* plugin.add(OpenRouterPlugin)
+      const transform = yield* catalog.transform()
+      yield* transform((catalog) => {
+        const openrouter = provider("openrouter", {
+          api: { type: "aisdk", package: "@openrouter/ai-sdk-provider" },
+        })
+        catalog.provider.update(openrouter.id, (item) => {
+          item.api = openrouter.api
+        })
+        catalog.provider.update(ProviderV2.ID.openai, () => {})
+        for (const item of [
+          model("openrouter", "openai/gpt-5-chat"),
+          model("openrouter", "openai/gpt-5"),
+          model("openai", "openai/gpt-5-chat"),
+        ]) {
+          catalog.model.update(item.providerID, item.id, () => {})
+        }
+      })
+
+      expect(
+        (yield* catalog.model.get(ProviderV2.ID.make("openrouter"), ModelV2.ID.make("openai/gpt-5-chat"))).enabled,
+      ).toBe(false)
+      expect(
+        (yield* catalog.model.get(ProviderV2.ID.make("openrouter"), ModelV2.ID.make("openai/gpt-5"))).enabled,
+      ).toBe(true)
+      expect((yield* catalog.model.get(ProviderV2.ID.openai, ModelV2.ID.make("openai/gpt-5-chat"))).enabled).toBe(true)
+    }),
+  )
+
+  it.effect("does not disable gpt-5-chat-latest for non-OpenRouter providers", () =>
+    Effect.gen(function* () {
+      const plugin = yield* PluginV2.Service
+      const catalog = yield* Catalog.Service
+      yield* plugin.add(OpenRouterPlugin)
+      const transform = yield* catalog.transform()
+      yield* transform((catalog) => {
+        catalog.provider.update(ProviderV2.ID.make("custom-openrouter"), () => {})
+        catalog.model.update(ProviderV2.ID.make("custom-openrouter"), ModelV2.ID.make("gpt-5-chat-latest"), () => {})
+      })
+      expect(
+        (yield* catalog.model.get(ProviderV2.ID.make("custom-openrouter"), ModelV2.ID.make("gpt-5-chat-latest")))
+          .enabled,
+      ).toBe(true)
+    }),
+  )
+})