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/opencode/test/storage/workspace-time-migration.test.ts

@@ -0,0 +1,50 @@
+import { describe, expect, test } from "bun:test"
+import { Database } from "bun:sqlite"
+import { drizzle } from "drizzle-orm/bun-sqlite"
+import { migrate } from "drizzle-orm/bun-sqlite/migrator"
+import { existsSync, readFileSync, readdirSync } from "fs"
+import path from "path"
+
+const target = "20260507164347_add_workspace_time"
+
+function migrations() {
+  return readdirSync(path.join(import.meta.dirname, "../../../core/migration"), { withFileTypes: true })
+    .filter(
+      (entry) =>
+        entry.isDirectory() &&
+        existsSync(path.join(import.meta.dirname, "../../../core/migration", entry.name, "migration.sql")),
+    )
+    .map((entry) => ({
+      name: entry.name,
+      timestamp: Number(entry.name.split("_")[0]),
+      sql: readFileSync(
+        path.join(import.meta.dirname, "../../../core/migration", entry.name, "migration.sql"),
+        "utf-8",
+      ),
+    }))
+    .sort((a, b) => a.timestamp - b.timestamp)
+}
+
+describe("workspace time migration", () => {
+  test("discards existing workspace rows during the beta reset", () => {
+    const sqlite = new Database(":memory:")
+    const db = drizzle({ client: sqlite })
+    const entries = migrations()
+    const index = entries.findIndex((entry) => entry.name === target)
+
+    expect(index).toBeGreaterThan(0)
+
+    migrate(db, entries.slice(0, index))
+    sqlite.run(
+      "INSERT INTO project (id, worktree, vcs, name, time_created, time_updated, sandboxes) VALUES (?, ?, ?, ?, ?, ?, ?)",
+      ["project_1", "/tmp/project", "git", "project", 1, 1, "[]"],
+    )
+    sqlite.run(
+      "INSERT INTO workspace (id, type, name, branch, directory, extra, project_id) VALUES (?, ?, ?, ?, ?, ?, ?)",
+      ["workspace_1", "local", "main", "main", "/tmp/project", null, "project_1"],
+    )
+
+    expect(() => migrate(db, entries.slice(index))).not.toThrow()
+    expect(sqlite.query("SELECT time_used FROM workspace WHERE id = ?").get("workspace_1")).toBeNull()
+  })
+})