Revert "fix: Explicitly exit CLI to prevent hanging subprocesses (#3083)"

This reverts commit a9624c0fff.

packages/opencode/src/session/prompt.ts

@@ -74,22 +74,13 @@ export namespace SessionPrompt {
           callback: (input: MessageV2.WithParts) => void
         }[]
       >()
-      const pending = new Set<Promise<void>>()
-
-      const track = (promise: Promise<void>) => {
-        pending.add(promise)
-        promise.finally(() => pending.delete(promise))
-      }
 
       return {
         queued,
-        pending,
-        track,
       }
     },
     async (current) => {
       current.queued.clear()
-      await Promise.allSettled([...current.pending])
     },
   )
 
@@ -200,6 +191,28 @@ export namespace SessionPrompt {
       processor,
     })
 
+    // const permUnsub = (() => {
+    //   const handled = new Set<string>()
+    //   const options = [
+    //     { optionId: "allow_once", kind: "allow_once", name: "Allow once" },
+    //     { optionId: "allow_always", kind: "allow_always", name: "Always allow" },
+    //     { optionId: "reject_once", kind: "reject_once", name: "Reject" },
+    //   ]
+    //   return Bus.subscribe(Permission.Event.Updated, async (event) => {
+    //     const info = event.properties
+    //     if (info.sessionID !== input.sessionID) return
+    //     if (handled.has(info.id)) return
+    //     handled.add(info.id)
+    //     const toolCallId = info.callID ?? info.id
+    //     const metadata = info.metadata ?? {}
+    //     // TODO: emit permission event to bus for ACP to handle
+    //     Permission.respond({ sessionID: info.sessionID, permissionID: info.id, response: "reject" })
+    //   })
+    // })()
+    // await using _permSub = defer(() => {
+    //   permUnsub?.()
+    // })
+
     const params = await Plugin.trigger(
       "chat.params",
       {
@@ -234,15 +247,13 @@ export namespace SessionPrompt {
       step++
       await processor.next(msgs.findLast((m) => m.info.role === "user")?.info.id!)
       if (step === 1) {
-        state().track(
-          ensureTitle({
-            session,
-            history: msgs,
-            message: userMsg,
-            providerID: model.providerID,
-            modelID: model.info.id,
-          }),
-        )
+        ensureTitle({
+          session,
+          history: msgs,
+          message: userMsg,
+          providerID: model.providerID,
+          modelID: model.info.id,
+        })
         SessionSummary.summarize({
           sessionID: input.sessionID,
           messageID: userMsg.info.id,
@@ -1719,7 +1730,7 @@ export namespace SessionPrompt {
         thinkingBudget: 0,
       }
     }
-    await generateText({
+    generateText({
       maxOutputTokens: small.info.reasoning ? 1500 : 20,
       providerOptions: ProviderTransform.providerOptions(small.npm, small.providerID, options),
       messages: [