refactor: switch small standalone namespaces to self-reexport imports

packages/opencode/src/permission/arity.ts

@@ -1,4 +1,3 @@
-export namespace BashArity {
 export function prefix(tokens: string[]) {
   for (let len = tokens.length; len > 0; len--) {
     const prefix = tokens.slice(0, len).join(" ")
@@ -160,4 +159,4 @@ This dictionary is used to identify the "human-understandable command" from an i
   "yarn dlx": 3, // yarn dlx create-react-app
   "yarn run": 3, // yarn run dev
 }
-}
+export * as BashArity from "./arity"

packages/opencode/src/skill/discovery.ts

@@ -6,7 +6,6 @@ import { AppFileSystem } from "@opencode-ai/shared/filesystem"
 import { Global } from "../global"
 import { Log } from "../util"
 
-export namespace Discovery {
 const skillConcurrency = 4
 const fileConcurrency = 8
 
@@ -113,4 +112,4 @@ export namespace Discovery {
   Layer.provide(AppFileSystem.defaultLayer),
   Layer.provide(NodePath.layer),
 )
-}
+export * as Discovery from "./discovery"

packages/opencode/src/skill/skill.ts

@@ -15,7 +15,7 @@ import { Config } from "../config"
 import { ConfigMarkdown } from "../config"
 import { Glob } from "@opencode-ai/shared/util/glob"
 import { Log } from "../util"
-import { Discovery } from "./discovery"
+import * as Discovery from "./discovery"
 
 const log = Log.create({ service: "skill" })
 const EXTERNAL_DIRS = [".claude", ".agents"]