refactor(core): replace bash tool with shell tool

packages/opencode/src/session/prompt.ts

@@ -35,7 +35,7 @@ import { Tool } from "@/tool/tool"
 import { Permission } from "@/permission"
 import { SessionStatus } from "./status"
 import { LLM } from "./llm"
-import { Shell } from "@opencode-ai/core/shell"
+import { ShellSelect } from "@opencode-ai/core/shell/select"
 import { ShellID } from "@/tool/shell/id"
 import { FSUtil } from "@opencode-ai/core/fs-util"
 import { Truncate } from "@/tool/truncate"
@@ -520,8 +520,8 @@ export const layer = Layer.effect(
           }).pipe(Effect.ensuring(markReady))
 
           const cfg = yield* config.get()
-          const sh = Shell.preferred(cfg.shell)
-          const args = Shell.args(sh, input.command, cwd)
+          const sh = ShellSelect.preferred(cfg.shell)
+          const args = ShellSelect.args(sh, input.command, cwd)
           let output = ""
           let aborted = false
 
@@ -1396,7 +1396,7 @@ export const layer = Layer.effect(
       const shellMatches = ConfigMarkdown.shell(template)
       if (shellMatches.length > 0) {
         const cfg = yield* config.get()
-        const sh = Shell.preferred(cfg.shell)
+        const sh = ShellSelect.preferred(cfg.shell)
         const results = yield* Effect.promise(() =>
           Promise.all(
             shellMatches.map(async ([, cmd]) => (await Process.text([cmd], { shell: sh, nothrow: true })).text),