refactor(core): replace legacy logger with Effect logging (#31310)

packages/opencode/test/session/prompt.test.ts

@@ -47,7 +47,6 @@ import { Shell } from "../../src/shell/shell"
 import { Snapshot } from "../../src/snapshot"
 import { ToolRegistry } from "@/tool/registry"
 import { Truncate } from "@/tool/truncate"
-import * as Log from "@opencode-ai/core/util/log"
 import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
 import { Search } from "@opencode-ai/core/filesystem/search"
 import { Format } from "../../src/format"
@@ -60,8 +59,6 @@ import { RuntimeFlags } from "@/effect/runtime-flags"
 import { ProviderV2 } from "@opencode-ai/core/provider"
 import { ModelV2 } from "@opencode-ai/core/model"
 
-void Log.init({ print: false })
-
 const summary = Layer.succeed(
   SessionSummary.Service,
   SessionSummary.Service.of({