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/plugin/package.json

@@ -0,0 +1,49 @@
+{
+  "$schema": "https://json.schemastore.org/package.json",
+  "name": "@opencode-ai/plugin",
+  "version": "1.17.4",
+  "type": "module",
+  "license": "MIT",
+  "scripts": {
+    "typecheck": "tsgo --noEmit",
+    "build": "tsc"
+  },
+  "exports": {
+    ".": "./src/index.ts",
+    "./tool": "./src/tool.ts",
+    "./tui": "./src/tui.ts"
+  },
+  "files": [
+    "dist"
+  ],
+  "dependencies": {
+    "@opencode-ai/sdk": "workspace:*",
+    "effect": "catalog:",
+    "zod": "catalog:"
+  },
+  "peerDependencies": {
+    "@opentui/core": ">=0.3.4",
+    "@opentui/keymap": ">=0.3.4",
+    "@opentui/solid": ">=0.3.4"
+  },
+  "peerDependenciesMeta": {
+    "@opentui/core": {
+      "optional": true
+    },
+    "@opentui/keymap": {
+      "optional": true
+    },
+    "@opentui/solid": {
+      "optional": true
+    }
+  },
+  "devDependencies": {
+    "@opentui/core": "catalog:",
+    "@opentui/keymap": "catalog:",
+    "@opentui/solid": "catalog:",
+    "@tsconfig/node22": "catalog:",
+    "@types/node": "catalog:",
+    "typescript": "catalog:",
+    "@typescript/native-preview": "catalog:"
+  }
+}