refactor(core): unify filesystem search service (#31566)

packages/opencode/test/tool/task.test.ts

@@ -7,6 +7,7 @@ import { BackgroundJob } from "@/background/job"
 import { EventV2Bridge } from "@/event-v2-bridge"
 import { Config } from "@/config/config"
 import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
+import { Ripgrep } from "@opencode-ai/core/ripgrep"
 import { Session } from "@/session/session"
 import type { SessionPrompt } from "../../src/session/prompt"
 import { MessageID, PartID, SessionID } from "../../src/session/schema"
@@ -45,7 +46,7 @@ const layer = (flags: Partial<RuntimeFlags.Info> = {}) =>
     ToolRegistry.defaultLayer,
     Database.defaultLayer,
     RuntimeFlags.layer(flags),
-  )
+  ).pipe(Layer.provide(Ripgrep.defaultLayer))
 
 const it = testEffect(layer())
 const background = testEffect(layer({ experimentalBackgroundSubagents: true }))