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/filesystem/search.test.ts

@@ -0,0 +1,43 @@
+import { describe, expect } from "bun:test"
+import fs from "fs/promises"
+import path from "path"
+import { Effect } from "effect"
+import { Ripgrep } from "@opencode-ai/core/ripgrep"
+import { AbsolutePath, RelativePath } from "@opencode-ai/core/schema"
+import { tmpdir } from "../fixture/tmpdir"
+import { testEffect } from "../lib/effect"
+
+const it = testEffect(Ripgrep.defaultLayer)
+
+const withTmp = <A, E, R>(f: (directory: AbsolutePath) => Effect.Effect<A, E, R>) =>
+  Effect.acquireRelease(
+    Effect.promise(() => tmpdir()),
+    (tmp) => Effect.promise(() => tmp[Symbol.asyncDispose]()),
+  ).pipe(Effect.flatMap((tmp) => f(AbsolutePath.make(tmp.path))))
+
+describe("Ripgrep", () => {
+  it.live("globs files as an array", () =>
+    withTmp((cwd) =>
+      Effect.gen(function* () {
+        yield* Effect.promise(() => fs.mkdir(path.join(cwd, "src")))
+        yield* Effect.promise(() => fs.writeFile(path.join(cwd, "src", "match.ts"), "needle\n"))
+        const result = yield* (yield* Ripgrep.Service).glob({ cwd, pattern: "**/*.ts", limit: 10 })
+        expect(result.map((item) => item.path)).toEqual([RelativePath.make(path.join("src", "match.ts"))])
+      }),
+    ),
+  )
+
+  it.live("greps files with include filtering", () =>
+    withTmp((cwd) =>
+      Effect.gen(function* () {
+        yield* Effect.promise(() => fs.mkdir(path.join(cwd, "src")))
+        yield* Effect.promise(() => fs.writeFile(path.join(cwd, "src", "match.ts"), "needle\n"))
+        yield* Effect.promise(() => fs.writeFile(path.join(cwd, "src", "skip.txt"), "needle\n"))
+        const result = yield* (yield* Ripgrep.Service).grep({ cwd, pattern: "needle", include: "*.ts", limit: 10 })
+        expect(result).toHaveLength(1)
+        expect(result[0]?.entry.path).toBe(RelativePath.make(path.join("src", "match.ts")))
+        expect(result[0]?.submatches[0]?.text).toBe("needle")
+      }),
+    ),
+  )
+})